第一原理計算によるBaSi2太陽電池の接合パートナー探索

2020.10 - 2021.3

京都大学  スーパーコンピュータ共同研究制度  若手・女性研究者奨励枠

シリコンウェハの新たな品質評価法の開発

2020.6 - 2021.3

株式会社パンソリューションテクノロジーズ 

太陽電池用シリコンウェハの新たな品質評価法の開発

2019.8 - 2020.3

株式会社パンソリューションテクノロジーズ 

低温連続成膜プロセスを用いたSnS/BaSi2太陽電池の開発

2018.4 - 2019.3

八洲環境技術振興財団  研究開発・調査助成 

高速熱蒸着法で形成したBaSi2/Siヘテロ接合の電気特性評価

2017.4 - 2020.3

日本学術振興会  若手研究（B)

発光イメージングによる欠陥特性の定量

2016.4 - 2019.3

日本学術振興会  基盤研究(B)

沓掛健太朗

大規模展開可能な新規SnS/BaSi2ヘテロ接合太陽電池の創製

2015.6 - 2016.5

村田学術振興財団  研究助成

イオン性BaSi2半導体による高効率薄膜太陽電池の創製

2015.4 - 2017.3

日本学術振興会  若手研究（B)

高効率SnS/BaSi2太陽電池の実現に向けたヘテロ界面評価

2015.4 - 2016.3

池谷科学技術振興財団  単年度研究助成

Crystalline Morphology of SiGe Films Grown on Si(110) Substrates Reviewed

Keisuke Arimoto, Chihiro Sakata, Kosuke O. Hara, Junji Yamanaka

Journal of Electronic Materials   52   5121 - 5127   2023.4

Semiconducting BaSi2 film synthesis by close-spaced evaporation benefiting from mechanical activation of source powder by ball milling Reviewed

Kosuke O. Hara, Chiaya Yamamoto, Junji Yamanaka, and Keisuke Arimoto

JJAP Conference Proceedings   10   011101   2023.4( ISSN：2758-2450 )

Constructing the composition ratio prediction model using machine learning for BaSi2 thin films deposited by thermal evaporation Reviewed Major achievement

Ryuto Ueda, Keisuke Arimoto, Junji Yamanaka, and Kosuke O. Hara

Japanese Journal of Applied Physics   62   SK1011   2023.4( ISSN：1347-4065 )

Designing limiting-efficiency BaSi2 solar cells by device simulation and computational material screening Reviewed Major achievement

Kosuke O. Hara

SOLAR ENERGY   245   136 - 145   2022.9( ISSN：0038-092X )

Evaluation of Lattice-Spacing of SiGe/Si by NBD using Two-condenser-lens TEM Reviewed

Junji Yamanaka, Takuya Oguni, Yuichi Sano, Yusuke Ohshima, Atsushi Onogawa, Kosuke O. Hara, Keisuke Arimoto

MICROSCOPY AND MICROANALYSIS   28   2812 - 2813   2022.7( ISSN：1431-9276 )

Silicon meets group-II metals in energy and electronic applications—How to handle reactive sources for high-quality films and bulk crystals Invited Reviewed Major achievement

T. Suemasu, K. O. Hara, H. Udono, and M. Imai

JOURNAL OF APPLIED PHYSICS   131   2022.5( ISSN：0021-8979 )

Discovering Low-Electron Affinity Semiconductors for Junction Partners of Photovoltaic BaSi2 by Database Screening and First Principles Calculations Reviewed Major achievement

Kosuke O. Hara

Journal of Physical Chemistry C   125   24310 - 24317   2021.10( ISSN：1932-7447 )

Fabrication of heterojunction crystalline Si solar cells with BaSi2 thin films prepared by a two-step evaporation method Reviewed

Yoshihiko Nakagawa, Kazuma Takahashi, Michinobu Fujiwara, Kosuke O. Hara, Kazuhiro Gotoh, Yasuyoshi Kurokawa, Takashi Itoh, Takashi Suemasu, and Noritaka Usami

JAPANESE JOURNAL OF APPLIED PHYSICS   60   2021.9( ISSN：0021-4922 )

Low temperature synthesis of photoconductive BaSi2 films by mechanochemically assisted close-spaced evaporation Reviewed Major achievement

Kosuke O. Hara, Chiaya Yamamoto, Junji Yamanaka, and Keisuke Arimoto

None   2   6713 - 6721   2021.9( ISSN：2633-5409 )

Dependences of the hole mobility in the strained Si pMOSFET and gated Hall bars formed on SiGe/Si(110) on the channel direction and the strained Si thickness Reviewed

Keisuke Arimoto, Taisuke Fujisawa, Daichi Namiuchi, Atsushi Onogawa, Yuichi Sano, Daisuke Izumi, Junji Yamanaka, Kosuke O. Hara, Kentarou Sawano, and Kiyokazu Nakagawa

JOURNAL OF CRYSTAL GROWTH   571   2021.7( ISSN：0022-0248 )

Investigations on Ba diffusion and SiO evaporation during BaSi2 film formation on Si substrates by thermal evaporation Reviewed Major achievement

Daisuke Yazawa, Kosuke O. Hara, Junji Yamanaka, and Keisuke Arimoto

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A   39   2021.5( ISSN：0734-2101 )

Close-spaced evaporation of CaGe2 films for scalable GeH film formation Reviewed Major achievement

Kosuke O. Hara, Shin Kunieda, Junji Yamanaka, Keisuke Arimoto, Mai Itoh, and Masashi Kurosawa

MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING   132   2021.5( ISSN：1369-8001 )

HREM Observation and Identification of the Causality of Twins in SiGe/Si (110) Reviewed

Junji Yamanaka, Yuichi Sano, Shingo Saito, Atsushi Onogawa, Kosuke O. Hara, Kiyokazu Nakagawa, and Keisuke Arimoto

MICROSCOPY AND MICROANALYSIS   26 ( S2 )   286 - 288   2020.7( ISSN：1431-9276 )

Interface reaction of the SnS/BaSi2 heterojunction fabricated for solar cell applications Reviewed Major achievement

Kosuke O Hara, Keisuke Arimoto, Junji Yamanaka, and Kiyokazu Nakagawa

THIN SOLID FILMS   706   2020.4( ISSN：0040-6090 )

Hole mobility in Strained Si/Relaxed SiGe/Si(110) hetero structures studied by gated Hall measurements Reviewed

Daichi Namiuchi, Atsushi Onogawa, Taisuke Fujisawa, Yuichi Sano, Daisuke Izumi, Junji Yamanaka, Kosuke O.Hara, Kentarou Sawano, Kiyokazu Nakagawa, and Keisuke Arimoto

MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING   113   2020.3( ISSN：1369-8001 )

Strain relaxation process and evolution of crystalline morphologies during the growths of SiGe on Si(110) by solid-source molecular beam epitaxy Reviewed

Shingo Saito, Yuichi Sano, Takane Yamada, Kosuke O. Hara, Junji Yamanaka, Kiyokazu Nakagawa, and Keisuke Arimoto

MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING   113   2020.3( ISSN：1369-8001 )

Reactive deposition growth of highly (001)-oriented BaSi2 films by close-spaced evaporation Reviewed Major achievement

Kosuke O. Hara, Shuhei Takizawa, Junji Yamanaka, Noritaka Usami, and Keisuke Arimoto

MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING   113   2020.3( ISSN：1369-8001 )

Hole mobility enhancement observed in (110)-oriented strained Si Reviewed

Keisuke Arimoto, Naoto Utsuyama, Shohei Mitsui, Kei Satoh, Takane Yamada, Junji Yamanaka, Kosuke O. Hara, Kentarou SAWANO, and Kiyokazu Nakagawa

JAPANESE JOURNAL OF APPLIED PHYSICS   59   2020.2( ISSN：0021-4922 )

Thermodynamic analyses of thermal evaporation of BaSi2 Reviewed Major achievement

Hara, Kosuke O and Arimoto, Keisuke and Yamanaka, Junji and Nakagawa, Kiyokazu

JAPANESE JOURNAL OF APPLIED PHYSICS   59   2020.1( ISSN：0021-4922 )

Relaxation of Strain in Si Layers Formed on (110)-Oriented SiGe/Si Heterostructures Reviewed

Keisuke Arimoto, Atsushi Onogawa, Shingo Saito, Yuichi Sano, Daisuke Izumi, Junji Yamanaka, Kosuke O. Hara, and Kiyokazu Nakagawa

ECS Transactions   93 ( 1 )   79 - 80   2019.11

Fabrication of SnS/BaSi2 heterojunction by thermal evaporation for solar cell applications Reviewed Major achievement

Kosuke O. Hara and Keisuke Arimoto and Junji Yamanaka and Kiyokazu Nakagawa

JAPANESE JOURNAL OF APPLIED PHYSICS   58   2019.1( ISSN：0021-4922 )

Stability of strain in Si layers formed on SiGe/Si(110) heterostructures Reviewed

Keisuke Arimoto, Atsushi Onogawa, Shingo Saito, Takane Yamada, Kei Sato, Naoto Utsuyama, Junji Yamanaka, Kosuke O. Hara, K Sawano, and Kiyokazu Nakagawa

SEMICONDUCTOR SCIENCE AND TECHNOLOGY   33   2018.11( ISSN：0268-1242 )

Feasibility Study to Evaluate Lattice-Space Changing of a Step-Graded {S}i{G}e/{S}i ($110$) Using {STEM} Moir{\'e} Reviewed

Yamanaka, Junji and Shirakura, Mai and Yamamoto, Chiaya and Sato, Kei and Yamada, Takane and Hara, Kosuke O and Arimoto, Keisuke and Nakagawa, Kiyokazu and Ishizuka, Akimitsu and Ishizuka, Kazuo

　   6   8 - 15   2018.7

Diffusion process in BaSi2 film formation by thermal evaporation and its relation to electrical propertie Invited Reviewed Major achievement

Kosuke O. Hara, Keisuke Arimoto, Junji Yamanaka and Kiyokazu Nakagawa

JOURNAL OF MATERIALS RESEARCH   33   2297 - 2305   2018.6( ISSN：0884-2914 )

Alternative simple method to realize p-type BaSi2 thin films for Si heterojunction solar cell applications Reviewed

Kazuma Takahashi, Yoshihiko Nakagawa, Kosuke O. Hara, Isao Takahashi, Yasuyoshi Kurokawa, and Noritaka Usami

MRS Advances   1 - 8   2018.2

Suppression of Near-interface Oxidation in Thermally-evaporated BaSi2 Films and Its Effects on Preferred Orientation and the Rectification Behavior of n-BaSi2/p -Si Diodes Reviewed

Kosuke O. Hara, Keisuke Arimoto, Junji Yamanaka, Kiyokazu Nakagawa, Noritaka

MRS Advances   1 - 6   2018.1

Surface Roughness of SiGe/Si(110) Formed by Stress-Induced Twins and the Solution to Produce Smooth Surface Reviewed

Junji Yamanaka, Mai Shirakura, Chiaya Yamamoto, Naoto Utsuyama, Kei Sato, Takane Yamada, Kosuke O. Hara, Keisuke Arimoto, Kiyokazu Nakagawa

　Journal of Materials Science and Chemical Engineering   6   25 - 31   2018.1

Simple method for significant improvement of minority-carrier lifetime of evaporated BaSi2 thin film by sputtered-AlOx passivation Reviewed

N. M. Shaalan, K. O. Hara, C. T. Trinh, Y. Nakagawa, and N. Usami

MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING   76   27 - 41   2017.12( ISSN：1369-8001 )

BaSi2 formation mechanism in thermally-evaporated films and its application to reducing oxygen impurity concentration Reviewed Major achievement

Kosuke O. Hara, Chiaya Yamamoto, Junji Yamanaka, Keisuke Arimoto, Kiyokazu Nakagawa, and Noritaka Usami

JAPANESE JOURNAL OF APPLIED PHYSICS   57   2017.12( ISSN：0021-4922 )

Investigation on the origin of preferred a-axis orientation of BaSi2 films deposited on Si(100) by thermal evaporation Reviewed Major achievement

Kosuke O. Hara, Chiaya Yamamoto, Junji Yamanaka, Keisuke Arimoto, Kiyokazu Nakagawa, Noritaka Usami

MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING   72   93 - 98   2017.10( ISSN：1369-8001 )

Growth of strained Si/relaxed SiGe heterostructures on Si (110) substrates using solid-source molecular beam epitaxy Reviewed

Keisuke Arimoto, Hiroki Nakazawa, Shohei Mitsui, Naoto Utsuyama, Junji Yamanaka, Kosuke O Hara, Noritaka Usami and Kiyokazu Nakagawa

SEMICONDUCTOR SCIENCE AND TECHNOLOGY   32   2017.9( ISSN：0268-1242 )

Formation of metastable cubic phase in SnS thin films fabricated by thermal evaporation Reviewed Major achievement

Kosuke O. Hara, Shintaro Suzuki, and Noritaka Usami

THIN SOLID FILMS   639   7 - 11   2017.8( ISSN：0040-6090 )

Fabrication of BaSi2 thin films capped with amorphous Si using a single evaporation source Reviewed Major achievement

Kosuke O. Hara, Cham Thi Trinh, Yasuyoshi Kurokawa, Keisuke Arimoto, Junji Yamanaka, Kiyokazu Nakagawa, and Noritaka Usami

THIN SOLID FILMS   636   546 - 551   2017.6( ISSN：0040-6090 )

Preferred orientation of BaSi2 thin films fabricated by thermal evaporation Reviewed

Kosuke O. Hara, Cham Thi Trinh, Yoshihiko Nakagawa, Yasuyoshi Kurokawa, Keisuke Arimoto, Junji Yamanaka, Kiyokazu Nakagawa, Noritaka Usami

JJAP Conference Proceedings   5   2017.5

Realization of crystalline BaSi2 thin films by vacuum evaporation on (111)-oriented Si layers fabricated by aluminum induced crystallization Reviewed

Jefferson A. Wibowo, Isao Takahashi, Kosuke O. Hara, Noritaka Usami

JJAP Conference Proceedings   5   2017.5

Growth of BaSi2 film on Ge(100) by vacuum evaporation and its photoresponse properties Reviewed Major achievement

Cham Thi Trinh, Yoshihiko Nakagawa, Kosuke O. Hara, Yasuyoshi Kurokawa, Ryota Takabe, Takashi Suemasu, and Noritaka Usami

JAPANESE JOURNAL OF APPLIED PHYSICS   56   2017.4( ISSN：0021-4922 )

Postannealing effects on undoped BaSi2 evaporated films grown on Si substrates Reviewed

Takamichi Suhara, Koichi Murata, Aryan Navabi, Kosuke O. Hara, Yoshihiko Nakagawa, Cham Thi Trinh, Yasuyoshi Kurokawa, Takashi Suemasu, Kang L. Wang, and Noritaka Usami

JAPANESE JOURNAL OF APPLIED PHYSICS   56   2017.4( ISSN：0021-4922 )

Investigation of p-type emitter layer materials for heterojunction barium disilicide thin film solar cells Reviewed

Kazuma Takahashi, Yoshihiko Nakagawa, Kosuke O. Hara, Yasuyoshi Kurokawa, and Noritaka Usami

JAPANESE JOURNAL OF APPLIED PHYSICS   56   2017.4( ISSN：0021-4922 )

Post-annealing effects on the surface structure and carrier lifetime of evaporated BaSi2 films Reviewed Major achievement

Kosuke O Hara,Cham Thi Trinh,Yasuyoshi Kurokawa,Keisuke Arimoto,Junji Yamanaka,Kiyokazu Nakagawa,Noritaka Usami

JAPANESE JOURNAL OF APPLIED PHYSICS   56   2017.3( ISSN：0021-4922 )

STEM Moir\'e Observation of Lattice-Relaxed Germanium Grown on Silicon Reviewed

Junji Yamanaka,Chiaya Yamamoto,Hiroki Nakaie,Tetsuji Arai,Keisuke Arimoto,Kosuke O Hara,Kiyokazu Nakagawa

Journal of Materials Science and Chemical Engineering   5 ( 1 )   102 - 108   2017.1

Hole mobility in strained Si/SiGe/vicinal Si (110) grown by gas source MBE Reviewed

Keisuke Arimoto, Sosuke Yagi, Junji Yamanaka, Kosuke O. Hara, Kentarou Sawano, Noritaka Usami, and Kiyokazu Nakagawa

JOURNAL OF CRYSTAL GROWTH   468   625 - 629   2016.12( ISSN：0022-0248 )

Effects of deposition rate on the structure and electron density of evaporated BaSi2 films Reviewed Major achievement

Kosuke O. Hara,Cham Thi Trinh ,Keisuke Arimoto ,Junji Yamanaka ,Kiyokazu Nakagawa ,Yasuyoshi Kurokawa ,Takashi Suemasu ,Noritaka Usami

JOURNAL OF APPLIED PHYSICS   120   2016.7( ISSN：0021-8979 )

Photoresponse properties of BaSi2 film grown on Si(100) by vacuum evaporation Reviewed

Cham Thi Trinh ,Yoshihiko Nakagawa,Kosuke O Hara,Ryota Takabe,Takashi Suemasu,Noritaka Usami

Materials Research Express   3   2016.7( ISSN：2053-1591 )

Simple vacuum evaporation route to BaSi2 thin films for solar cell applications Reviewed Major achievement

Procedia Engineering   141   27 - 31   2016.3

Control of electrical properties of BaSi2 thin films by alkali-metal doping using alkali-metal fluorides Reviewed Major achievement

Thin Solid Films   603   218 - 223   2016.3

On the mechanism of BaSi2 thin film formation on Si substrate by vacuum evaporation Reviewed

Procedia Engineering   141   23 - 26   2016.3

Formation of BaSi2 heterojunction solar cells using transparent MoOx hole transport layers Reviewed

Applied Physics Letters   106   2015.3

Realization of single-phase BaSi2 films by vacuum evaporation with suitable optical properties and carrier lifetime for solar cell applications Reviewed Major achievement

Japanese Journal of Applied Physics   54   2015.3

Cross-sectional potential profile across a BaSi2 pn junction by Kelvin probe force microscopy Reviewed

Japanese Journal of Applied Physics   54   2015.3

Fabrication of single-phase polycrystalline BaSi2 thin films on silicon substrates by vacuum evaporation for solar cell applications Reviewed Major achievement

Japanese Journal of Applied Physics   54   2015.3

Structural and electrical characterizations of crack-free BaSi2 thin films fabricated by thermal evaporation Reviewed Major achievement

Thin Solid Films   595A   68 - 72   2015.3

Fabrication and characterization of BaSi2 epitaxial films over 1 um in thickness on Si(111) Reviewed

R. Takabe, K. Nakamura, M. Baba, W. Du, M.A. Khan, K. Toko, M. Sasase, ,K.O. Hara, N. Usami, T. Suemasu

Japanese Journal of Applied Physics   53   2014.11

Potential variations around grain boundaries in impurity-doped BaSi2 epitaxial films evaluated by Kelvin probe force microscopy Reviewed

Journal of Applied Physics   116   2014.11

Evaluation of minority carrier diffusion length of undoped n-BaSi2 epitaxial thin films on Si(001) substrates by electron-beam-induced-current technique Reviewed

Japanese Journal of Applied Physics   53   2014.11

Analysis of the electrical properties of Cr/n-BaSi2 Schottky junction and n-BaSi2/p-Si heterojunction diodes for solar cell applications Reviewed

Journal of Applied Physics   115   2014.11

Influence of grain size and surface condition on minority-carrier lifetime in undoped n-BaSi2 on Si(111) Reviewed

Journal of Applied Physics   115   2014.11

N-Type Doping of BaSi2 Epitaxial Films by Phosphorus Ion Implantation and Thermal Annealing Reviewed Major achievement

Thin Solid Films   557   90 - 93   2014.11

N-type doping of BaSi2 epitaxial films by arsenic ion implantation through a dose-dependent carrier generation mechanism Reviewed Major achievement

Thin Solid Films   567   105 - 108   2014.11

Theory of open-circuit voltage and the driving force of charge separation in pn-junction solar cells Reviewed Major achievement

Journal of Applied Physics   103   2013.11

Lattice and grain-boundary diffusions of boron atoms in BaSi2 epitaxial films on Si(111 Reviewed

Journal of Applied Physics   113   2013.11

Large photoresponsivity in semiconducting BaSi2 epitaxial films grown on Si(001) substrates by molecular beam epitaxy Reviewed

Journal of Crystal Growth   378   198 - 200   2013.11

Fabrication and characterizations of phosphorus-doped n-type BaSi2 epitaxial films grown by molecular beam epitaxy Reviewed

Physica Status Solidi (c)   10   1753 - 1755   2013.11

Evaluation of potential variations around grain boundaries in BaSi2 epitaxial films by Kelvin probe force microscopy Reviewed

Applied Physics Letters   103   2013.11

Formation of large-grain-sized BaSi2 epitaxial layers grown on Si(111) by molecular beam epitaxy Reviewed

Journal of Crystal Growth   378   193 - 197   2013.11

Epitaxial growth of BaSi2 films with large grains using vicinal Si (111) substrates Reviewed

Physica Status Solidi (c)   10   1756 - 1758   2013.11

Molecular beam epitaxy of boron doped p-type BaSi2 epitaxial films on Si(111) substrates for thin-film solar cells Reviewed

Journal of Crystal Growth   378   201 - 204   2013.11

In-situ heavily p-type doping of over 1020 cm-3 in semiconducting BaSi2 thin films for solar cells Reviewed

Applied Physics Letters   102   2013.11

Phase Stability of b-MoSi2－x Prepared by the Na Flux Method against Thermal, Oxidative, and Mechanical treatments Reviewed Major achievement

Journal of Materials Science   48   3121 - 3127   2013.11

Structural Study on Phosphorus Doping of BaSi2 Epitaxial Films by Ion Implantation Reviewed Major achievement

Thin Solid Films   534   470 - 473   2013.11

Mechanism of strain relaxation in BaSi2 epitaxial films on Si(111) substrates during post-growth annealing and application for film exfoliation Reviewed Major achievement

Physica Status Solidi (c)   10   1677 - 1680   2013.11

Determination of bulk minority-carrier lifetime in BaSi2 earth-abundant absorber films by utilizing a drastic enhancement of carrier lifetime by post-growth annealing Reviewed Major achievement

Applied Physics Express   6   2013.11

Investigation of the Recombination Mechanism of Excess Carriers in Undoped BaSi2 Films on Silicon Reviewed Major achievement

Journal of Applied Physics   112   2012.11

Molecular Beam Epitaxy of BaSi2 Thin Films on Si(001) Substrates Reviewed

Journal of Crystal Growth   34   16 - 21   2012.11

Molecular Dynamics Study of the Milling-Induced Allotropic Transformation in Cobalt Reviewed Major achievement

Philosophical Magazine   92   2117 - 2129   2012.11

Investigation of Grain Boundaries in BaSi2 Epitaxial Films on Si(111) Substrates Using Transmission Electron Microscopy and Electron-Beam-Induced Current Technique Reviewed

Journal of Crystal Growth   348   75 - 79   2012.11

Dependence of Crystal Orientation in Al-Induced Crystallized Poly-Si Layers on SiO2 Insertion Layer Thickness Reviewed

Journal of Crystal Growth   356   65 - 69   2012.11

Epitaxy of Orthorhombic BaSi2 with Preferential In-Plane Crystal Orientation on Si(001): Effects of Vicinal Substrate and Annealing Temperature Reviewed

Japanese Journal of Applied Physics   51   2012.11

Milling Induced Polymorphic Transformation in MoSi2 Reviewed Major achievement

International Journal of Materials Research   103   1130 - 1136   2012.11

Realization of Large-Domain Barium Disilicide Epitaxial Thin Film by Introduction of Miscut to Si(111) Substrate Reviewed Major achievement

Japanese Journal of Applied Physics Special Issue   51   2012.11

Structural Study of BF2 Ion Implantation and Post Annealing of BaSi2 Epitaxial Films Reviewed Major achievement

Japanese Journal of Applied Physics   50   2011.11

Dynamic Equilibrium of MoSi2 Polymorphs during Mechanical Milling Reviewed Major achievement

Journal of Alloys and Compounds   509S   S243 - S246   2011.11

Formation of Metastable Phases by High-Energy Ball Milling in the Ti-O System Reviewed Major achievement

Journal of Physics: Conference Series   144   2009.11

メカニカルアロイングによるTiOの合成における吸着水の影響 Reviewed

原 康祐，山末 英嗣，奥村 英之，石原 慶一

粉体および粉末冶金   55   26 - 32   2008.11

Arイオン注入した多層MoTe2の熱処理によるテルルナノシート形成

村中 柊都、野上田 聖、原 康祐、澤野 憲太郎、星 裕介

第29回電子デバイス界面テクノロジー研究会(EDIT29)  2024.2 

Small Negative Effect of Domain Boundary on Carrier Lifetime of BaSi2 Absorber Films International conference Major achievement

Kosuke O. Hara, Ryota Takagaki, Keisuke Arimoto, and Noritaka Usami

The 34th International Photovoltaic Science and Engineering Conference (PVSEC-34)  2023.11 

ダブルヘテロ接合BaSi2太陽電池の電極材料の候補選定 Major achievement

矢崎 智昌、有元 圭介、山中 淳二、原 康祐

第84回応用物理学会秋季学術講演会  2023.9 

NBD 回折円盤を用いたNi-Al-Ti 合金中の析出物と母相の面間隔評価

古屋丞司、山中淳二、有元圭介、原康祐、土井稔

日本金属学会2023年秋期(第173回）講演大会  2023.9 

歪み Si/SiGe/Si(110)ヘテロ構造への in-situ Sb ドーピングプロセスの検討

河村 剛登、原 康祐、山中 淳二、中川 清和、有元 圭介

第84回応用物理学会秋季学術講演会  2023.9 

歪みSi/SiGe/Si(110)MOS構造の界面準位密度の評価

青沼 雄基、藤澤 泰輔、堀内 未希、吉川 満希、山中 淳二、原 康祐、中川 清和、有元 圭介

第84回応用物理学会秋季学術講演会  2023.9 

近接蒸着法により成膜したCaSi2のSiHへの変換 Major achievement

高垣 僚太、有元 圭介、山中 淳二、黒澤 昌志、原 康祐

第84回応用物理学会秋季学術講演会  2023.9 

BaSi2ダブルヘテロ接合における接合界面の化学的安定性の検証 Major achievement

原 康祐、有元 圭介

第84回応用物理学会秋季学術講演会  2023.9 

Feasibility study for the evaluation of SiGe/Si (110) domain tilt using X-ray diffraction reciprocal space mapping and conventional HR-TEM method International conference

Junji Yamanaka, Chihiro Sakata, Kosuke O. Hara, Keisuke Arimoto

The 20th International Microscopy Congress (IMC20)  2023.9 

Growth of Epitaxial BaSi2 Films with Carrier Lifetime over 2 μs by Close-Spaced Evaporation International conference Major achievement

Kosuke O. Hara, Ryota Takagaki, Keisuke Arimoto, and Noritaka Usami

2023 International Conference on Solid State Devices and Materials (SSDM2023)  2023.9 

Formation of a tellurium nanosheet with structural anisotropy by annealing defective MoTe2 multilayers International conference

Shuto Muranaka, Satoshi Nogamida, Kosuke O. Hara, Kentarou Sawano, Yusuke Hoshi

The 65th Fullerenes-Nanotubes-Graphene General Symposium  2023.9 

Evaluation of Lattice-Spacing of SiGe/Si by NBD using Two Condenser-lens TEM, Experimental Study about the Effect of Convergence Angle International conference

Junji Yamanaka, Joji Furuya, Kosuke O. Hara, and Keisuke Arimoto

Microscopy & Microanalysis 2023 Meeting  2023.7 

Heterojunction design by computational material screening for solar cells with BaSi2 absorber International conference Major achievement

Kosuke O. Hara

11th International Conference on Materials for Advanced Technologies  2023.6 

低温成長したSi/Ge/SiO2のTEM, SEM, AFM観察

近藤弘人、有元圭介、原康祐、山中淳二

日本顕微鏡学会第79回学術講演会  2023.6 

近接蒸着法により作製したCaSi2薄膜の結晶配向性 Major achievement

高垣 僚太、有元 圭介、山中 淳二、原 康祐

第70回応用物理学会春季学術講演会  2023.3 

BaSi2薄膜の結晶粒界とキャリア寿命の関係 Major achievement

原 康祐、有元 圭介、宇佐美 徳隆

第70回応用物理学会春季学術講演会  2023.3 

Heterojunction Design Using Computational Material Screening for Solar Cells: Application to BaSi2 Absorber Invited International conference Major achievement

Kosuke O. Hara

2nd Indo-Japan Joint Workshop on Photovoltaics (IJWP-2023)  2023.3 

近接蒸着法を用いたCaSi₂薄膜の作製 Major achievement

高垣 僚太、有元 圭介、山中 淳二、原 康祐

第16 回日本フラックス成長研究発表会  2022.12 

Ni 固相フラックスを用いたSiC 薄膜作製の試み Major achievement

國枝 慎、有元 圭介、山中 淳二、原 康祐

第16 回日本フラックス成長研究発表会  2022.12 

Synthesis of multilayer two-dimensional group-IV flakes and nanosheets International conference Major achievement

Masashi Kurosawa, Mai Itoh, Yoshitsune Ito, Kazuya Okada, Akio Ohta, Masaaki Araidai, Kosuke O. Hara, Yuichiro Ando, Shigeru Yamada, Shigehisa Shibayama, Mitsuo Sakashita, Osamu Nakatsuka

The 33rd International Photovoltaic Science and Engineering Conference (PVSEC-33)  2022.11 

Computational material screening for charge transport layers of BaSi2 solar cells International conference Major achievement

Kosuke O. Hara

The 33rd International Photovoltaic Science and Engineering Conference (PVSEC-33)  2022.11 

Constructing the composition ratio prediction model using machine learning for BaSi2 thin films deposited by thermal evaporation International conference Major achievement

Ryuto Ueda, Keisuke Arimoto, Junji Yamanaka, Kosuke O. Hara

The 33rd International Photovoltaic Science and Engineering Conference (PVSEC-33)  2022.11 

NBD回折円盤からのSiGe面間隔測定における収束レンズ条件の影響

古屋 丞司、有元 圭介、小國 琢弥、原 康祐、山中 淳二

日本顕微鏡学会第65回シンポジウム  2022.11 

Ge/SiO2及びSi/Ge/SiO2の低温成長とそのTEM観察

近藤 弘人、有元 圭介、原 康祐、山中 淳二

第83回応用物理学会秋季学術講演会  2022.9 

歪みSiGe/Ge(111)に発生したクラックのTEM観察

田島 滉太、山中 淳二、有元 圭介、原 康祐、我妻 勇哉、澤野 憲太郎

第83回応用物理学会秋季学術講演会  2022.9 

Synthesis of photoconductive BaSi2 films by close-spaced evaporation International conference Major achievement

Kosuke O. Hara, Chiaya Yamamoto, Junji Yamanaka, Keisuke Arimoto

The 22nd International Vacuum Congress (IVC-22)  2022.9 

Evaluation of Lattice-Spacing of Si and SiGe by NBD using conventional TEM International conference

Junji Yamanaka, Takuya Oguni, Joji Furuya, Kosuke O. Hara, Keisuke Arimoto

19th International Conference on Defects-Recognition, Imaging and Physics in Semiconductors (DRIP XIX)  2022.8 

Crystalline Morphology of SiGe Films Grown on Si(110) Substrates International conference

Keisuke Arimoto, Chihiro Sakata, Kosuke O. Hara, Junji Yamanaka

19th International Conference on Defects-Recognition, Imaging and Physics in Semiconductors (DRIP XIX)  2022.8 

BaSi2の成膜技術開発と太陽電池応用 Invited

原 康祐

山梨大学新技術情報クラブ令和4年度第一回交流会  2022.8 

Evaluation of Lattice-Spacing of SiGe/Si by NBD using two-condenser-lens TEM International conference

J. Yamanaka, T. Oguni, Y. Sano, Y. Ohshima, A. Onogawa, K. O. Hara, and K. Arimoto

Microscopy & Microanalysis 2022 Meeting  2022.7 

Mechanochemically Assisted Close-Spaced Evaporation of BaSi2 Films International conference Major achievement

Kosuke O. Hara, Chiaya Yamamoto, Junji Yamanaka, and Keisuke Arimoto

The 6th Asia-Pacific Conference on Green Technology with Silicides and Related Materials, 2022  2022.7 

BaSi2太陽電池の電荷輸送層に対する材料探索プロセスの改良 Major achievement

原 康祐

第19回「次世代の太陽光発電システム」シンポジウム（第2回日本太陽光発電学会学術講演会）  2022.6 

2段集束レンズTEMを用いたNBDによるSiGeと歪Siの面間隔評価

山中淳二、小國琢弥、佐野雄一、大島佑介、各川敦史、原康祐、有元圭介

日本顕微鏡学会第78回学術講演会  2022.5 

歪みSi/緩和 SiGe/Si(110)ヘテロ構造p-MOSFETの高正孔移動度化とリーク電流の低減

藤澤 泰輔、各川 敦史、堀内 未希、坂田 千尋、山中 淳二、原 康祐、澤野 憲太郎、中川 清和、有元 圭介

第69回応用物理学会春季学術講演会  2022.3 

BaSi2太陽電池の限界発電効率の再検討 Major achievement

原 康祐

第69回応用物理学会春季学術講演会  2022.3 

Si基板上BaSi2近接蒸着膜の実効キャリア寿命 Major achievement

原 康祐、高垣 僚太、有元 圭介、宇佐美 徳隆

第69回応用物理学会春季学術講演会  2022.3 

機械学習を用いたBaSi2蒸着膜の組成比予測モデルの予測精度改善 Major achievement

上田 龍斗、有元 圭介、山中 淳二、原 康祐

第69回応用物理学会春季学術講演会  2022.3 

Database-Driven Design of BaSi2-Based Solar Cells with Theoretical Limit Efficiency International conference Major achievement

Kosuke O. Hara

Materials Research Meeting 2021  2021.12 

Si/SiGe/Si(110) 内双晶分布の X 線回折と TEM による評価

坂田 千尋、有元 圭介、各川 敦史、原 康祐、山中 淳二

日本顕微鏡学会第64回シンポジウム  2021.11 

2段集束レンズ TEM を用いた NBD による SiGe 面間隔評価の試行

小國 琢弥、佐野 雄一、大島 佑介、原 康祐、有元 圭介、山中 淳二

日本顕微鏡学会第64回シンポジウム  2021.11 

STEM-Moiré Applications to Crystalline Specimens without using High-End Microscopes International conference

Junji Yamanaka, Chiaya Yamamoto, Kosuke O. Hara, Keisuke Arimoto

"Japan-Canada Joint Seminar on Advanced Electron Microscopy and its Application ―2nd Canada – Japan Microscopy Societies Symposium 2021―"  2021.11 

高効率ヘテロ接合太陽電池のデバイス設計：BaSi2 を光吸収層として Major achievement

原 康祐

第18回「次世代の太陽光発電システム」シンポジウム（第1回日本太陽光発電学会学術講演会）  2021.10 

Strain and Defect Engineering for the (110)-Oriented Si pMOSFETs Invited International conference

Keisuke Arimoto, Junji Yamanaka, Kosuke O. Hara, Kentarou Sawano and Kiyokazu Nakagawa

2021 International Conference on Materials Science and Engineering  2021.10 

BaSi2太陽電池に適した電子・正孔輸送層のデータベース駆動型材料探索 Major achievement

原 康祐

第82回応用物理学会秋季学術講演会  2021.9 

機械学習を用いたBaSi2蒸着膜の組成比予測モデルの作成

上田 龍斗、有元 圭介、山中 淳二、原 康祐

第19回シリサイド系半導体・夏の学校  2021.8 

Discrimination between Coherent and Incoherent Interfaces using STEM Moiré International conference

Junji Yamanaka, Daisuke Izumi, Chiaya Yamamoto, Mai Shirakura, Kosuke O. Hara, Keisuke Arimoto

Microscopy & Microanalysis 2021 Meeting  2021.8 

第一原理計算によるBaSi2太陽電池の接合パートナー探索 Major achievement

原 康祐

学際大規模情報基盤共同利用・共同研究拠点 第13回シンポジウム  2021.7 

2段集束レンズTEMを用いたNBDによるSi面間隔評価の試行

小國琢弥、佐野雄一、原康祐、有元圭介、山中淳二

日本顕微鏡学会第77回学術講演会  2021.6 

Investigation of a defect-assisted-metal formed by annealing MoTe2 crystals with Ar ion implantation International conference

Satoshi Nogamida, Shunya Hayashida, Kosuke O. Hara, Kentarou Sawano, and Yusuke Hoshi

European Materials Research Society (E-MRS) Spring meeting 2021  2021.5 

Si(110)基板上への組成傾斜SiGe層形成法に関する研究

堀内 未希、斎藤 慎吾、原 康介、山中 淳二、有元 圭介

第68回応用物理学会春季学術講演会  2021.3 

メカノケミカル効果を活用した近接蒸着法によるBaSi2成膜 Major achievement

原 康祐、山本 千綾、山中 淳二、有元 圭介

第68回応用物理学会春季学術講演会  2021.3 

近接蒸着法によるCaGe2成膜とゲルマナンへの変換 Major achievement

原 康祐、國枝 慎、山中 淳二、有元 圭介、伊藤 麻維、黒澤 昌志

第68回応用物理学会春季学術講演会  2021.3 

電流変調抵抗率測定におけるSiウェーハ表面ダメージの影響 Major achievement

原 康祐、塚越 由花、牧瀬 啓人、有元 圭介、星 裕介、松島 悟

第68回応用物理学会春季学術講演会  2021.3 

歪みSi/ SiGe/Si(110)ヘテロ構造へのin situ Sbドーピングに関する研究

吉川 満希、浪内 大地、陳 北辰、堀内 未希、藤澤 泰輔、山中 淳二、原 康祐、中川 清和、有元 圭介

第68回応用物理学会春季学術講演会  2021.3 

Dependences of the hole mobility in the strained Si pMOSFET formed on SiGe/Si(110) on strained Si Thickness and the channel direction International conference

Keisuke Arimoto, Taisuke Fujisawa, Daichi Namiuchi, Atsushi Onogawa, Yuichi Sano, Daisuke Izumi, Junji Yamanaka, Kosuke O. Hara, Kentarou Sawano, and Kiyokazu Nakagawa

The 8th Asian Conference on Crystal Growth and Crystal Technology  2021.3 

Simulation of BaSi2 heterojunction solar cells for high efficiency device design International conference Major achievement

Kosuke O. Hara

The 30th International Photovoltaic Science and Engineering Conference (PVSEC-30)  2020.11 

電子・正孔輸送層を用いるBaSi2太陽電池のデバイスシミュレーション Major achievement

原 康祐

第17回「次世代の太陽光発電システム」シンポジウム  2020.10 

Engineering Strain, Defects and Electronic Properties of (110)-Oriented Strained Si Invited International conference

K. Arimoto, J. Yamanaka, K. O. Hara, and K. Nakagawa

PRiME 2020, the Electro-Chemical Society Fall Meeting  2020.10 

理論限界効率を示すBaSi2太陽電池のデバイスシミュレーション Major achievement

原 康祐

第81回応用物理学会秋季学術講演会  2020.9 

歪みSi/緩和SiGe/Si(110)ヘテロ構造p-MOSFETにおける正孔移動度のチャネル方向依存性

藤澤 泰輔、各川 敦史、浪内 大地、佐野 雄一、泉 大輔、山中 淳二、原 康祐、澤野 憲太郎、中川 清和、有元 圭介

第81回応用物理学会秋季学術講演会  2020.9 

HREM Observation and Identification of the Causality of Twins in SiGe/Si (110) International conference

J. Yamanaka, Y. Sano, S. Saito, A. Onogawa, K. O. Hara, K. Nakagawa, K. Arimoto,

Microscopy & Microanalysis 2020 Meeting  2020.8 

近接蒸着法によるCaSi2とCaGe2の成膜 Major achievement

原 康祐、瀧澤 周平、山中 淳二、黒澤 昌志、有元 圭介

第67回応用物理学会春季学術講演会  2020.3 

真空蒸着法によるSrSi2の薄膜作製 Major achievement

瀧澤 周平、原 康祐、山中 淳二、有元 圭介

第67回応用物理学会春季学術講演会  2020.3 

第一原理計算を活用したn 型BaSi2との接合ペア材料の探索 Major achievement

原 康祐

第67回応用物理学会春季学術講演会  2020.3 

Critical Thickness of SiGe on Si(110) Substrate International conference

Daichi Namiuchi, Atsushi Onogawa, Keisuke Arimoto, Yuichi Sano, Daisuke Izumi, Junji Yamanaka, Kosuke O Hara, Kentarou Sawano, Kiyokazu Nakagawa

8th International Symposium on Control of Semiconductor Interfaces  2019.11 

Practical Growth Processes of Silicide and Germanide Thin Films for Photovoltaic and Electronic Applications Invited International conference Major achievement

Kosuke O. Hara, Shuhei Takizawa, Noritaka Usami, Junji Yamanaka, Keisuke Arimoto

8th International Symposium on Control of Semiconductor Interfaces  2019.11 

Hole Mobility in Strained Si/Relaxed SiGe/Si(110) Hetero Structures Studied by Gated Hall Measurements International conference

Daichi Namiuchi, Atsushi Onogawa, Keisuke Arimoto, Yuichi Sano, Daisuke Izumi, Junji Yamanaka, Kosuke O Hara, Kentarou Sawano, Kiyokazu Nakagawa

8th International Symposium on Control of Semiconductor Interfaces  2019.11 

Close-spaced Evaporation: Scalable Technique for BaSi2 Film Deposition International conference Major achievement

Kosuke O. Hara, Shuhei Takizawa, Noritaka Usami, Junji Yamanaka, Keisuke Arimoto

29th International Photovoltaic Science and Engineering Conference (PVSEC-29)  2019.11 

Zintl 相シリサイド、ジャーマナイドの高速成膜技術 Invited Major achievement

原 康祐

第４回 新奇二次元デバイス・物質科学ワークショップ  2019.9 

歪みSi/緩和SiGe/Si(110)ヘテロ構造p-MOSFETにおける電界効果移動度の歪みSi膜厚依存性

藤澤 泰輔、各川 敦史、浪内 大地、斎藤 慎吾、佐野 雄一、泉 大輔、山中 淳二、原 康祐、澤野 憲太郎、中川 清和、有元 圭介

第80回応用物理学会秋季学術講演会  2019.9 

BaSi2融液から発生する蒸気組成の理論解析 Major achievement

原 康祐、山中 淳二、有元 圭介

第80回応用物理学会秋季学術講演会  2019.9 

Si(110)基板上のSiGeの臨界膜厚に関する研究

斎藤 慎吾、佐野 雄一、有元 圭介、山中 淳二、原 康祐、中川 清和

第80回応用物理学会秋季学術講演会  2019.9 

真空蒸着でのBaSi2成膜における基板加熱条件の影響 Major achievement

矢澤 大典、原 康祐、山中 淳二、有元 圭介

第80回応用物理学会秋季学術講演会  2019.9 

歪みSi/緩和SiGe/Si(110)ヘテロ構造の反転キャリアのHall移動度評価

浪内 大地、澤野 憲太郎、各川 敦史、佐野 雄一、泉 大輔、有元 圭介、山中 淳二、原 康祐、中川 清和

第80回応用物理学会秋季学術講演会  2019.9 

Hole Mobility Enhancement Observed in (110)-Oriented Strained Si International conference

Keisuke Arimoto, Naoto Utsuyama, Shohei Mitsui, Kei Satoh, Takane Yamada, Junji Yamanaka, Kosuke O. Hara, Kentarou Sawano, Kiyokazu Nakagawa

2019 International Conference on Solid State Devices and Materials (SSDM2019)  2019.9 

Evaluation of Crystal Lattice Rotation around a Stress-Induced Twin in a Step-Graded SiGe / Si (110) Using STEM Moiré Observation and its Image Analysis International conference

Junji Yamanaka, Chiaya Yamamoto, Mai Shirakura, Kosuke O. Hara, Keisuke Arimoto, Kiyokazu Nakagawa, Akimitsu Ishizuka, and Kazuo Ishizuka

Microscopy & Microanalysis 2019 Meeting  2019.8 

Physicochemical study of BaSi2 evaporation for composition-controlled film deposition International conference Major achievement

Kosuke O. Hara, Keisuke Arimoto, Junji Yamanaka, and Kiyokazu Nakagawa

The 5th Asia-Pacific Conference on Semiconducting Silicides and Related Materials 2019 (APAC-Silicide 2019)  2019.7 

Elucidating the SnS/BaSi2 Interface Reaction for SnS/BaSi2 Heterojunction Solar Cells International conference Major achievement

Kosuke O. Hara, Keisuke Arimoto, Junji Yamanaka, and Kiyokazu Nakagawa

10th International Conference on Materials for Advanced Technologies (ICMAT2019)  2019.6 

SiGe のSTEM モアレ観察-収差補正有無での比較

泉大輔、波多聰、白倉麻依、佐藤圭、原康祐、有元圭介、中川清和、山中淳二

日本顕微鏡学会第75回学術講演会  2019.6 

Relaxation of strain in Si layers formed on (110)-oriented SiGe/Si heterostructures International conference

Kiesuke Arimoto, Atsushi Onogawa, Shingo Saito, Yuichi Sano, Daisuke Izumi, Junji Yamanaka, Kosuke O. Hara, and Kiyokazu Nakagawa

2nd Joint ISTDM / ICSI Conference (ISTDM&ICSI2019)  2019.6 

Si(110) 基板上に成長したSiGe混晶半導体の高分解能TEM観察

佐野雄一、有元圭介、斎藤慎吾、各川敦史、原康祐、中川清和、山中淳二

日本顕微鏡学会 第43回関東支部講演会  2019.3 

水素ラジカル加熱を用いたガラス基板上Poly-Si形成技術開発

中家 大希、斎藤 慎吾、荒井 哲司、上村 和貴、有元 圭介、原 康祐、山中 淳二、中川 清和、高松 利行、澤野 憲太郎

第66回応用物理学会春季学術講演会  2019.3 

近接蒸着によるBaSi2薄膜作製 Major achievement

原 康祐、瀧澤 周平、有元 圭介、山中 淳二、中川 清和

第66回応用物理学会春季学術講演会  2019.3 

(110)面歪みSi薄膜のラマン分光法による歪み評価

有元 圭介、各川 敦史、斎藤 慎吾、原 康祐、山中 淳二、中川 清和

第66回応用物理学会春季学術講演会  2019.3 

高速熱蒸着によるBaSi2薄膜作製技術の進展 Invited

原 康祐、有元 圭介、山中 淳二、中川 清和

第32回シリサイド系半導体研究会  2018.9 

水素ラジカル加熱を用いたSi-ULSI用NiSi電極形成技術開発

中家 大希、荒井 哲司、上村 和貴、有元 圭介、原 康祐、白倉 麻衣、山本 千綾、山中 淳二、中川 清和、高松 利行

第79回応用物理学会秋季学術講演会  2018.9 

連続蒸着とポストアニールによるSnS/BaSi2ヘテロ接合の作製 Major achievement

原 康祐、有元 圭介、山中 淳二、中川 清和

第79回応用物理学会秋季学術講演会  2018.9 

Si(110)上に形成されたSiGeの格子歪みの熱的安定性

大島 佑介、山田 崇峰、有元 圭介、山中 淳二、原 康祐、中川 清和

第79回応用物理学会秋季学術講演会  2018.9 

SiGe/Si(110)構造の表面形状形成過程に関する研究

斎藤 慎吾、佐野 雄一、山田 崇峰、原 康祐、山中 淳二、有元 圭介、中川 清和

第79回応用物理学会秋季学術講演会  2018.9 

伸張歪みSi/緩和SiGe/Si(110)ヘテロ構造のゲート電圧印加Hall測定による移動度評価

浪内 大地、佐藤 圭、澤野 憲太郎、有元 圭介、山中 淳二、原 康祐、中川 清和

第79回応用物理学会秋季学術講演会  2018.9 

Formation of SnS/BaSi2 Heterojunction by Sequential Thermal Evaporation toward Solar Cell Applications International conference Major achievement

Kosuke O. Hara, Keisuke Arimoto, Junji Yamanaka, and Kiyokazu Nakagawa

2018 International Conference on Solid State Devices and Materials (SSDM2018)  2018.9 

STEM Moiré Observation of the Compositionally Step-Graded SiGe Thin Film and its Image Analysis International conference

Junji Yamanaka, Chiaya Yamamoto, Mai Shirakura, Kei Sato, Takane Yamada, Kosuke O. Hara, Keisuke Arimoto, Kiyokazu Nakagawa, Akimitsu Ishizuka, and Kazuo Ishizuka

19th International Microscopy Congress (IMC19)  2018.9 

Composition control of semiconducting BaSi2 films fabricated by thermal evaporation Invited International conference Major achievement

Kosuke O. Hara, Keisuke Arimoto, Junji Yamanaka, and Kiyokazu Nakagawa

Collaborative Conference on Materials Research (CCMR) 2018  2018.6 

階段状組成傾斜SiGe/Si(110)のSTEM モアレ観察と面間隔評価

山中淳二、山本千綾、白倉麻依、佐藤圭、山田祟峰、原康祐、有元圭介、中川清和、石塚顕在、石塚和夫

日本顕微鏡学会第74回学術講演会  2018.5 

Stability of strain in Si layers formed on SiGe/Si(110) heterostructures International conference

Keisuke Arimoto, Takane Yamada, Kei Sato, Naoto Utsuyama, Atsushi Onogawa, Junji Yamanaka, Kosuke O. Hara, Kiyokazu Nakagawa

1st Joint ISTDM / ICSI 2018 Conference  2018.5 

(110)面歪みSi薄膜の臨界膜厚

有元 圭介、各川 敦史、山田 祟峰、原 康祐、山中 淳二、中川 清和

第65回応用物理学会春季学術講演会  2018.3 

BaSi2蒸着における蒸気組成と成膜過程解析 Major achievement

原 康祐、有元 圭介、山中 淳二、中川 清和

第65回応用物理学会春季学術講演会  2018.3 

Alternative Simple Method to Realize P-Type BaSi2 Thin Films for Si Heterojunction Solar Cells Application International conference

Kazuma Takahashi, Yoshihiko Nakagawa, Kosuke O. Hara, Isao Takahashi, Yasuyoshi Kurokawa, Noritaka Usami

2017 MRS Fall Meetings & Exhibit  2017.11 

Simple Thermal Evaporation Route to Single-Phase and Highly-Oriented BaSi2 Thin Films Invited International conference Major achievement

Kosuke O. Hara, Chiaya Yamamoto, Junji Yamanaka, Keisuke Arimoto, Kiyokazu Nakagawa, Noritaka Usami

2017 MRS Fall Meetings & Exhibit  2017.11 

Development of preferred orientation in evaporated BaSi2 films on Si(100) by controlling the near-interface structure International conference Major achievement

Kosuke O. Hara, Chiaya Yamamoto, Junji Yamanaka, Keisuke Arimoto, Kiyokazu Nakagawa, and Noritaka Usami

27th International Photovoltaic Science and Engineering Conference (PVSEC-27)  2017.11 

FABRICATION OF SILICON HETEROJUNCTION SOLAR CELLS WITH BARIUM DISILICIDE THIN FILMS PREPARATED BY THERMAL EVAPORATION International conference

Kazuma Takahashi , Yoshihiko Nakagawa, Kazuhiro Goto, Kosuke O. Hara, Isao Takahashi, Yasuyoshi Kurokawa, Noritaka Usami

27th International Photovoltaic Science and Engineering Conference (PVSEC-27)  2017.11 

Microstructural Characteristics of BaSi2 Epitaxial Films Fabricated by Thermal Evaporation International conference Major achievement

K. O. Hara, C. Yamamoto, J. Yamanaka, K. Arimoto, K. Nakagawa, N. Usami

2017 International Conference on Solid State Devices and Materials (SSDM2017)  2017.9 

BaSi2蒸着膜中の酸素濃度低減と結晶配向への影響 Major achievement

原 康祐、山中 淳二、有元 圭介、中川 清和、宇佐美 徳隆

第78回応用物理学会秋季学術講演会  2017.9 

p型BaSi2薄膜を用いたヘテロ接合型Si太陽電池の作製

高橋 一真， 中川 慶彦 ， 原 康祐， 高橋 勲， 黒川 康良， 宇佐美 徳隆

第14 回 「次世代の太陽光発電システム」シンポジウム  2017.7 

BaSi2蒸着膜のa-Si被覆による表面酸化抑制

原 康祐，Cham Thi Trinh，黒川 康良，有元 圭介，山中 淳二，中川 清和，宇佐美 徳隆

第14 回 「次世代の太陽光発電システム」シンポジウム  2017.7 

階段状組成傾斜SiGe/Si(110)のSTEMモアレ観察

山中 淳二，山本 千綾，白倉 麻依，佐藤 圭，山田 崇峰，原 康祐，有元 圭介，中川 清和

第73回日本顕微鏡学会学術講演会  2017.5 

AlOx passivation for improving the minority-carrier lifetime of BaSi2 film for solar cell application International conference

N. M. Shaalan, K. O. Hara, C. T. Trinh, Y. Nakagawa, N. Usami

The 2017 E-MRS Spring Meeting and Exhibit  2017.5 

Growth of strained Si/SiGe heterostructures on Si(110) substrates using solid-source molecular beam epitaxy International conference

Keisuke Arimoto, Hiroki Nakazawa, Shohei Mitsui, Naoto Utsuyama, Junji Yamanaka, Kosuke O. Hara, Noritaka Usami, Kiyokazu Nakagawa

The 10th International Conference on Silicon Epitaxy and heterostructures  2017.5 

真空蒸着法により作製したa-Si/BaSi2の接触抵抗低減効果

須原 貴道、中川 慶彦、原 康祐、黒川 康良、末益 崇、宇佐美 徳隆

第64回応用物理学会春季学術講演会  2017.3 

BaSi2蒸着膜中の酸素不純物に関する調査

原 康祐、山本 千綾、山中 淳二、有元 圭介、中川 清和、黒川 康良、宇佐美 徳隆

第64回応用物理学会春季学術講演会  2017.3 

Siヘテロ接合太陽電池応用に向けたp型BaSi2の作製技術開発

高橋 一真、中川 慶彦、原 康祐、黒川 康良、宇佐美 徳隆

第64回応用物理学会春季学術講演会  2017.3 

STEM Moire Observation of Lattice-Relaxed Germanium Grown on Silicon International conference

Junji Yamanaka, Chiaya Yamamoto, Hiroki Nakaie, Tetsuji Arai, Keisuke Arimoto, Kosuke O. Hara, Kiyokazu Nakagawa

The 3rd Int'l Conference on Thin Film Technology and Applications (TFTA2017)  2017.1 

Close relationship between electrical properties and microstructure of semiconducting BaSi2 films Invited International conference Major achievement

Kosuke O. Hara, Cham Thi Trinh, Junji Yamanaka, Keisuke Arimoto, Kiyokazu Nakagawa, Yasuyoshi Kurokawa, Noritaka Usami

2016 Global Research Efforts on Energy and Nanomaterials (GREEN 2016)  2016.12 

Improving the quality of evaporated BaSi2 films toward photovoltaic applications International conference Major achievement

Kosuke O. Hara, Keisuke Arimoto, Junji Yamanaka, Kiyokazu Nakagawa

University of Yamanashi International Symposium 2016  2016.11 

Surface Modification of Evaporated BaSi2 Films by In-situ Post-annealing and Amorphous Silicon Capping International conference Major achievement

K.O. Hara, C.T. Trinh, Y. Kurokawa, K. Arimoto, J. Yamanaka, K. Nakagawa, N. Usami

2016 International Conference on Solid State Devices and Materials (SSDM2016)  2016.9 

Growth of Crystalline BaSi2 Thin Films by Vacuum Evaporation on Poly-Crystalline Silicon Fabricated by Aluminum Induced Crystallization

Jefferson Adrian WIBOWO、Yoshihiko NAKAGAWA、Isao TAKAHASHI、Kosuke O. HARA、Noritaka USAMI

2016.9 

単一原料の蒸着によるa-Si/BaSi2積層構造の作製

原 康祐、Trinh Cham Thi、黒川 康良、有元 圭介、山中 淳二、中川 清和、宇佐美 徳隆

第77回応用物理学会秋季学術講演会  2016.9 

真空蒸着法により作製したBaSi2/SUS304 の断面評価

須原 貴道、青柳 健太、原 康祐、末益 崇、宇佐美 徳隆

第77回応用物理学会秋季学術講演会  2016.9 

Si ヘテロ接合太陽電池におけるホール選択層としてのBaSi2 の検討

高橋 一真、中川 慶彦、原 康祐、黒川 康良、宇佐美 徳隆

第77回応用物理学会秋季学術講演会  2016.9 

伸張歪みSi/SiGe/Si(110)ヘテロ構造の表面モフォロジーに成長速度が及ぼす影響

佐藤 圭、宇津山 直人、山田 崇峰、有元 圭介、山中 淳二、原 康祐、澤野 憲太朗、宇佐美 徳隆、中川 清和

第77回応用物理学会秋季学術講演会  2016.9 

イオン注入歪み緩和法を用いて形成したSi/Si1-xCx/Si(001)構造の結晶性評価

村上 太陽、有元 圭介、山中 淳二、原 康祐、山本 千綾、宇佐美 徳隆、星 裕介、有澤 洋、澤野 憲太郎、中川 清和

第77回応用物理学会秋季学術講演会  2016.9 

伸張歪みSi/緩和SiGe/Si(110)ヘテロ構造の結晶成長中における表面形状形成過程に関する研究

山田 崇峰、宇津山 直人、佐藤 圭、白倉 麻衣、山本 千綾、有元 圭介、山中 淳二、原 康祐、宇佐美 徳隆、澤野 憲太郎、中川 清和

第77回応用物理学会秋季学術講演会  2016.9 

Preferred Orientation of BaSi2 Thin Films Fabricated by Thermal Evaporation International conference

Kosuke O. Hara, Cham Thi Trinh, Yoshihiko Nakagawa, Yasuyoshi Kurokawa, Keisuke Arimoto, Junji Yamanaka, Kiyokazu Nakagawa, and Noritaka Usami

Asia-Pacific Conference on Green Technology with Silicides and Related Materials (APAC-SILICIDE 2016)  2016.7 

Investigation of p-type Emitter Layer Materials for Heterojunction Barium Silicide Thin Film Solar Cells International conference

Kazuma Takahashi, Yoshihiko Nakagawa, Kosuke O. Hara, Yasuyoshi Kurokawa, Noritaka Usami

Asia-Pacific Conference on Green Technology with Silicides and Related Materials (APAC-SILICIDE 2016)  2016.7 

The Growth of Polycrystalline Orthorhombic BaSi2 on Ge Substrate by Vacuum Evaporation Method International conference

Cham Thi Trinh, Yoshihiko Nakagawa, Kosuke O. Hara, Ryota Takabe, Takashi Suemasu, and Noritaka Usami

Asia-Pacific Conference on Green Technology with Silicides and Related Materials (APAC-SILICIDE 2016)  2016.7 

Proposal of a Method to Realize BaSi2 Thin Films with Uniform Orientation using Reactivity of Excessive Ba in the Film and Si Substrate in Vacuum Evaporation International conference

Yoshihiko Nakagawa, Cham Thi Trinh, Kosuke O. Hara, Yasuyoshi Kurokawa, Takashi Suemasu and Noritaka Usami

Asia-Pacific Conference on Green Technology with Silicides and Related Materials (APAC-SILICIDE 2016)  2016.7 

Post -Annealing Effects on BaSi2 Evaporated Films Grown on Si Substrates International conference

Takamichi Suhara, Koichi Murata, Aryan Navabi, Kosuke O. Hara, Yoshihiko Nakagawa, Trinh Cham Chi, Yasuyoshi Kurokawa, Takashi Suemasu, Kang L. Wang, and Noritaka Usami

Asia-Pacific Conference on Green Technology with Silicides and Related Materials (APAC-SILICIDE 2016)  2016.7 

Photoresponse properties of BaSi2 film grown on Si (100) by vacuum evaporation International conference

Cham Thi Trinh, Yoshihiko Nakagawa, Kosuke O. Hara, Ryota Takabe, Takashi Suemasu, and Noritaka Usami

European PV Solar Energy Conference and Exhibition 2016  2016.6 

Potential of Semiconducting BaSi2 for Thin-Film Solar Cell Applications

2016 MRS Spring Meetings & Exhibit  2016.3 

Growth of strained Si/SiGe on Si(110) substrates for realization of high-mobility devices

Collaborative Conference on Crystal Growth (3CG 2015)  2015.12 

Thin film growth of BaSi2 photovoltaic material by rapid thermal evaporation Invited Major achievement

Collaborative Conference on Crystal Growth (3CG 2015)  2015.12 

Growth of High Quality BaSi2 Film on Ge Substrate by Vacuum Evaporation Method

25th International Photovoltaic Science & Engineering Conference  2015.11 

Exploring the Potential of Semiconducting BaSi2 for Thin-Film Solar Cell Applications

8th International Conference on Materials for Advanced Technologies of the Materials Research Society of Singapore  2015.6 

Simple Vacuum Evaporation Route to BaSi2 Thin Films for Solar Cell Applications Major achievement

8th International Conference on Materials for Advanced Technologies of the Materials Research Society of Singapore  2015.6 

Arsenic doping into BaSi2 semiconductor films by ion implantation and thermal annealing Major achievement

The 6th IEEE International Nanoelectronics Conference 2014  2014.7 

Realization of Single-Phase BaSi2 Films by Vacuum Evaporation with Appropriate Optical Properties for Solar Cell Applications Major achievement

International conference and summer school on advanced silicide technology 2014  2014.7 

On the Origin of Drastic Enhancement of Excess-Carrier Lifetime by Annealing BaSi2 Epitaxial Films Major achievement

2013 JSAP-MRS Joint Symposia  2013.9 

Potential barrier height at grain boundaries in BaSi2 epitaxial thin films studied by Kelvin probe force microscopy

2013 JSAP-MRS Joint Symposia  2013.9 

Mechanism of Strain Relaxation in BaSi2 Epitaxial Films on Si(111) Substrates during Post-Growth Annealing and Application for Film Exfoliation Major achievement

Asia-Pacific Conference on Green Technology with Silicides and Related Materials (APAC-SILICIDE 2013)  2013.7 

Phosphorus doping of BaSi2 by ion implantation Major achievement

The 22nd Photovoltaic Science and Engineering Conference (PVSEC-22)  2012.11 

Molecular beam epitaxy of boron doped p-type BaSi2 epitaxial films on Si(111) substrates for thin-film solar cells

The 17th International Conference on Molecular Beam Epitaxy (MBE2012)?  2012.9 

Large photoresponsivity in semiconducting BaSi2 epitaxial films grown on Si(001) substrates by molecular beam epitaxy

The 17th International Conference on Molecular Beam Epitaxy (MBE2012)?  2012.9 

BaSi2 as a New Material for Thin Film Solar Cells

1st IMR & KMU Joint Workshop under the Korea-Japan Basic Scientific Cooperation Program and the Collaboration Agreement between IMR & KMU  2012.2 

Impact of diffusion barrier layer thickness on preferential orientation of Al-induced crystallized Si layers for BaSi2 solar cell

Photovoltaic Science and Engineering Conference (PVSEC-21)  2011.11 

Realization of large-domain barium disilicide epitaxial thin film by introduction of miscut to silicon (111) substrate Major achievement

Photovoltaic Science and Engineering Conference (PVSEC-21)  2011.11 

Barium Disicilide: A New Material for Thin-Film Solar Cells

Seminar at INSA  2011.11 

Orientation control of Al-induced crystallized silicon by diffusion barrier layers

2011 International Conference on Solid State Devices and Materials (SSDM 2011)  2011.9 

Annealing of the BaSi2 Epitaxial Films Implanted with BF2 Ions Major achievement

2011 International Conference on Solid State Devices and Materials (SSDM 2011)  2011.9 

Milling Induced Polymorphic Transformation in MoSi2 Major achievement

The 14th International Conference on Rapidly Quenched and Metastable Materials (RQ 14)  2011.8 

Metastable phase formation by mechanical milling

University of Science and Technology of China - Kyoto University Joint Doctoral Workshop on CO2 Zero Emission Energy Science and Technology  2010.9 

Dynamic equilibrium of MoSi2 polymorphs during mechanical milling Major achievement

International Symposium on Metastable, Amorphous and Nanostructured Materials (ISMANAM 2010)  2010.7 

Phase transformation induced by mechanical milling in MoSi2 Major achievement

7th Eco-Energy and Material Science and Engineering Symposium  2009.11 

Indicators for evaluating phase stability during mechanical milling

International Summer School Symposium on Energy Science for Young Generations (ISSES-YGN)  2009.8 

Crystal Science

2023Year

Wine and Gem

2023Year

応用工学実験II

2023Year  Type of subject：Professional education (undergraduate)

2021

Type：Master's （Major B course）dissertations guidance

Number of people receiving guidance ：1people 

Graduation / pass / number of people awarded degrees ：0people 

2020

Type：Undergraduate （Major A course）graduation thesis guidance

Number of people receiving guidance ：1people 

Graduation / pass / number of people awarded degrees ：1people 

2020

Type：Master's （Major B course）dissertations guidance

Number of people receiving guidance ：2people 

Graduation / pass / number of people awarded degrees ：2people 

2019

Type：Undergraduate （Major A course）graduation thesis guidance

Number of people receiving guidance ：1people 

Graduation / pass / number of people awarded degrees ：1people 

2019

Type：Master's （Major B course）dissertations guidance

Number of people receiving guidance ：3people 

Graduation / pass / number of people awarded degrees ：1people 

太陽電池のしくみ―脱炭素社会へのキーテクノロジー―

Role(s)： Lecturer

公開授業  山梨大学  2022.8

太陽電池の高効率化を支える材料研究

Role(s)： Lecturer

山梨県立甲府昭和高等学校  出前講義  山梨県立甲府昭和高等学校  2020.8

応用物理学会東海地区若手チャプター   コアメンバー  

2021.1   

応用物理学会東海地区若手チャプター   副代表  

2018.3 - 2020.12   

シリサイド系半導体と関連物質研究会   企画担当幹事  

2016.3