"Yosuke Abe,Takahito Nishimura,Akira Yamada","Optimum Electrical and Optical Properties of Transparent Conducting Oxide for Cu(In,Ga)Se2 Photovoltaic Module Applications",,"Physica Status Solidi (a)",,,,"pp. 2300641",2024,Feb. "Akihiro Funaki,Fumiya Furumaki,Takahito Nishimura,Akira Yamada","Development of In2S3 buffer layer for Cu(In,Ga)Se2 solar cells by open-air CVD method","The 34th International PV Science and Engineering Conference",,,,,,2023,Nov. "Takahito Nishimura,Ryuki Kasai,Akira Yamada","Device Design for High-Efficient Cu(In,Ga)Se2 Solar Cells utilizing Bayesian Optimization","The 34th International PV Science and Engineering Conference",,,,,,2023,Nov. "Yosuke Abe,Ryotaro Fukuda,Takahito Nishimura,Akira Yamada","Systematic Analysis of Ag Addition Effects on Bulk and Interface Properties in CIGSe Solar Cells","The 34th International PV Science and Engineering Conference",,,,,,2023,Nov. "河西 竜輝,船木 顕広,福田 遼太郎,西村 昂人,山田 明","ベイズ最適化を用いた CIGS 太陽電池の最適設計","第84回応用物理学会秋季学術講演会",,,,,,2023,Sept. "柴田 智樹,鈴木 陽太,西村 昂人,山田 明","硫黄粉末を用いた硫化法によるCu(In,Ga)S2太陽電池の作製","第84回応用物理学会秋季学術講演会",,,,,,2023,Sept. "古牧 郁弥,船木 顕広,西村 昂人,山田 明","大気開放型CVD法を用いたIn2S3の作製およびCIGSe太陽電池への応用","第84回応用物理学会秋季学術講演会",,,,,,2023,Sept. "阿部 鷹介,福田 遼太郎,西村 昂人,山田 明","CIGS太陽電池のバルクおよび界面特性に対するAg添加の影響","第84回応用物理学会秋季学術講演会",,,,,,2023,Sept. "R. Fukuda,T. Nishimura,A. Yamada","Analysis of EBIC Time Variation with VSe?VCu Vacancy Complex in Cu(In, Ga)Se2 Solar Cells","40th European Photovoltaic Solar Energy Conference and Exhibition",,,,,,2023,Sept. "T. Nishimura,Yosuke Abe,A. Yamada","Theoretical and Experimental Optimization of Back Junction for Cu(In,Ga)Se2 Solar Cells","40th European Photovoltaic Solar Energy Conference and Exhibition",,,,,,2023,Sept. "鈴木 陽太,Dwinanri Egyna,柴田 智樹,山田 裕太郎,西村 昂人,山田 明","Cu(In,Ga)S2 太陽電池のための低電 子親和力 Zn-Ge-O の開発","第20回「次世代の太陽光発電システム」シンポジウム",,,,,,2023,June "船木 顕広,古牧 郁弥,西村 昂人,山田 明","大気開放型 CVD 法を用いた CIGS 太陽電池 用 n 型バッファ層の開発","第20回「次世代の太陽光発電システム」シンポジウム",,,,,,2023,June "Yota Suzuki,Dwinanri Egyna,Tomoki Shibata,Takahito Nishimura,Akira Yamada","Mechanism analysis of CuInS2 and Cu(In,Ga)S2 growth via KCN- and H2S-free process and solar-cell application",,"Japanese Journal of Applied Physics",,"Vol. 62"," SK1032",,2023,May "Akihiro Funaki,Fumiya Furumaki,Takahito Nishimura,Akira Yamada","Development of n-type Zn(O, S) buffer layer deposited by open-air CVD method for Cu(In, Ga)Se2 solar cells",,"Japanese Journal of Applied Physics",,"Vol. 62","No. SK1027",,2023,Apr. "Ryotaro Fukuda,Shinkai Shimizu,Takahito Nishimura,Akira Yamada","Analysis of EBIC time-variation using 2D simulation including charge states in VSe?VCu divacancy complex",,"Japanese Journal of Applied Physics",,"Vol. 62",," SK1017",2023,Apr. "徳田 亘,He Xi,古牧 郁弥,西村 昂人,山田 明","大気開放型CVD法によるCu-S系化合物薄膜熱電変換材料の作製","第70回応用物理学会春季学術講演会",,,,,,2023,Mar. "河西 竜輝,船木 顕広,福田 遼太郎,西村 昂人,山田 明","カーネル法を用いた CIGS 太陽電池の最適設計","第70回応用物理学会春季学術講演会",,,,,,2023,Mar. "Ryotaro Fukuda,Takahito Nishimura,Akira Yamada","Experimental and theoretical EBIC analysis for grain boundary and CdS/Cu(In,Ga)Se2 heterointerface in Cu(In,Ga)Se2 solar cells",,"Progress in Photovoltaics: Res. Appl.",,,," 1",2023,Feb. "Dwinanri Egyna,Satoru Ito,Takahito Nishimura,Akira Yamada","Growth of Zn-Ge-O Thin-Film as a Transparent Conductive Oxide Buffer Material for Chalcopyrite Solar Cell",,"Cryst. Research Technology",,,," 2200145",2022,Dec. "Xi He,西村 昂人,山田 明","Cu-Se 化合物の熱電特性の評価","2022年度多元系化合物・太陽電池研究会 年末講演会",,,,,,2022,Dec. "Takahito Nishimura,Akira Yamada","Optimum Back Junction utilizing P-Type MoSe2:Nb Layer for Cu(In,Ga)Se2 Solar Cells","33rd International Photovoltaic Science and Engineering Conference (PVSEC-33)",,,,,,2022,Nov. "Akihiro Funaki,Fumiya Furumaki,Takahito Nishimura,Akira Yamada","Development of n-type ZnS buffer layer deposited by atmospheric pressure MOCVD method for Cu(In,Ga)Se2 solar cells","33rd International Photovoltaic Science and Engineering Conference (PVSEC-33)",,,,,,2022,Nov. "Dwinanri Egyna,Ito Satoru,Takahito Nishimura,Akira Yamada","Zn-Ge-O thin-films as alternative n-type layers for chalcogenide solar cells","33rd International Photovoltaic Science and Engineering Conference (PVSEC-33)",,,,,,2022,Nov. "Yota Suzuki,Dwinanri Egyna,Tomoki Shibata,Takahito Nishimura,Akira Yamada","Growth mechanism and fabrication of pure sulfide CuIn(Ga)S2 solar cell by sulfurization","33rd International Photovoltaic Science and Engineering Conference (PVSEC-33)",,,,,,2022,Nov. "Ryotaro Fukuda,Shinkai Shimizu,Takahito Nishimura,Akira Yamada","Analysis of EBIC time-variation using 2D simulation including charge states in VSe?VCu divacancy complex","33rd International Photovoltaic Science and Engineering Conference (PVSEC-33)",,,,,,2022,Nov. "阿部 鷹介,西村 昂人,山田 明","CIGS太陽電池モジュールの透明導電膜抵抗の解析","第83回応用物理学会秋季学術講演会",,,,,,2022,Sept. "柴田 智樹,鈴木 陽太,西村 昂人,山田 明","硫黄粉末を用いた硫化法によるCu(In,Ga)S2の作製","第83回応用物理学会秋季学術講演会",,,,,,2022,Sept. "古牧 郁弥,船木 顕広,西村 昂人,山田 明","大気中MOCVD法によるCIGS太陽電池用ZnSバッファ層の作製","第83回応用物理学会秋季学術講演会",,,,,,2022,Sept. "清水 新開,福田 遼太郎,西村 昂人,山田 明","EBIC 法を用いたCu(In,Ga) Se2太陽電池の評価","第83回応用物理学会秋季学術講演会",,,,,,2022,Sept. "Shogo Ishizuka,Jiro Nishinaga,Kosuke Beppu,Tsuyoshi Maeda,Fuuka Aoyagi,Takahiro Wada,Akira Yamada,Jakapan Chantana,Takahito Nishimura,Takashi Minemoto,Muhammad Monirul Islam,Takeaki Sakurai,Norio Terada","Physical and chemical aspects at the interface and in the bulk of CuInSe2-based thin-film photovoltaics",,"Phys. Chem. Chem. Phys.",,"vol. 24",,"pp. 1262",2022,Jan. "石塚尚吾,西永慈郎,別府孝介,前田毅,青柳風香,和田隆博,山田明,Jakapan Chantana,西村昂人,峯元高志,Muhanmad Monirul Islam,櫻井岳暁,寺田教男","CIS系太陽電池の現在とこれからの研究開発課題","令和3年度 応用物理学会 多元化合物・太陽電池研究会 年末講演会",,,,,,2021,Dec. "Kazuyoshi Nakada,Takahito Nishimura,Naoki Suyama,Akira Yamada","Cathode luminescence analysis of Cu(In,Ga)Se2 solar cells treated with thiourea solution",,"Japanese Journal of Applied Physics",," 60",," 031001",2021,Feb. "Takahito Nishimura,Jakapan Chantana,Yu Kawano,Akira Yamada,Yoshinori Kimoto,Takuya Kato,Hiroki Sugimoto,Takashi Minemoto","Interfacial modification mechanism by aging effect for high-performance Cd-free and all-dry process Cu(In,Ga)(S,Se)2 solar cells",,"Applied Physics Letters",,"vol. 117",,"pp. 223501",2020,Nov. "Kazuyoshi Nakada,Motoki Watanabe,Takahito Nishimura,Naoki Suyama,Akira Yamada","Improvement of Cu(In,Ga)Se2 solar cell performance by thiourea treatment",,"Japanese Journal of Applied Physics",," 59",," 031005",2020,Mar. "Jakapan Chantana,Takahito Nishimura,Yu Kawano,Naoki Suyama,Akira Yamada,Yoshinori Kimoto,Takuya Kato,Hiroki Sugimoto,Takashi Minemoto","Aging effect of a Cu(In,Ga)(S,Se)2 absorber on the photovoltaic performance of its Cd-free solar cell fabricated by an all-dry process: its carrier recombination analysis",,"Advanced Energy Materials",,,," 1902869",2019,Oct. "Takahito Nishimura,Kazuyoshi Nakada,Akira Yamada","Examination of a Cu-Deficient Layer on Cu(In, Ga)Se2 Films Fabricated by a Three-Stage Process for Highly Efficient Solar Cells",,"Applied Energy Materials","ACS Publications"," 2"," 7"," 5103-5108",2019,June "Takahiro Hayakawa,Takahito Nishimura,Hiroki Sugiura,Naoki Suyama,Kazuyoshi Nakada,Akira Yamada","Control of Donor Concentration in n-Type Buffer Layer for High-Efficiency Cu(In,Ga)Se2 Solar Cells",,"IEEE JOURNAL OF PHOTOVOLTAICS",,"Vol. 8","No. 6",,2018,Nov. "Takahito Nishimura,Hiroki Sugiura,Kazuyoshi Nakada,Akira Yamada","Accurate control and characterization of Cu depletion layer for highly efficient Cu(In,Ga)Se2 solar cells",,"Progress in Photovoltaics",,"vol. 27",,"pp. 171",2018,Oct. "千脇 那菜,西村 昂人,中田 和吉,山田 明","2端子薄膜タンデム太陽電池応用に向けたp型CuIの開発","第79回応用物理学会秋季学術講演会",,,,,,2018,Sept. "Takahiro Hayakawa,Takahito Nishimura,Hiroki Sugiura,Naoki Suyama,Kazuyoshi Nakada,Akira Yamada","Control of donor concentration in n-type buffer layer for high-efficiency Cu(In,Ga)Se2 solar cells","7th World Conference on Photovoltaic Energy Conversion (WCPEC-7)",,,,,,2018,June "Takahito Nishimura,Hiroki Sugiura,Kazuyoshi Nakada,Akira Yamada","Characterization of Interface Between Accurately Controlled Cu-Deficient Layer and Cu(In,Ga)Se2 Absorber for Cu(In,Ga)Se2 Solar Cells",,"physica status solidi (RRL)",,"Vol. 12","No. 8"," 1800129",2018,May "Takahito Nishimura","Study of Heterojunction Interface for High-efficient Cu(In,Ga)Se2 solar cells",,,,,,,2018,Mar. "早川 貴宏,西村 昂人,杉浦 大樹,中田 和吉,山田 明","Cu(In,Ga)Se2太陽電池におけるCdSバッファ層のキャリア濃度制御","第65回 応用物理学会 春季学術講演会",,,,,,2018,Mar. "Takahito Nishimura","Study of Heterojunction Interface for High-efficient Cu(In,Ga)Se2 solar cells",,,,,,,2018,Mar. "Takahito Nishimura","Study of Heterojunction Interface for High-efficient Cu(In,Ga)Se2 solar cells",,,,,,,2018,Mar. "Takahito Nishimura","Study of Heterojunction Interface for High-efficient Cu(In,Ga)Se2 solar cells",,,,,,,2018,Mar. "Takahito Nishimura,Soma Toki,Hiroki Sugiura,Kazuyoshi Nakada,Akira Yamada","Effect of Cu-deficient layer formation in Cu(In,Ga)Se2 solar-cell performance",,"Progress in Photovoltaics: Research and Applications",,,,,2017,Dec. "Hiroki Sugiura,Takahito Nishimura,Kazuyoshi Nakada,Akira Yamada","Experimental Investigation of Cd- and Zn-diffusion Effect for Cu(In,Ga)Se2 Solar cells with Cu-poor Layer","27th International Photovoltaic Science and Engineering Conference (PVSEC-27)",,,,,,2017,Nov. "Kazuyoshi Nakada,Takahito Nishimura,Yohei Numata,Tsutomu Miyasaka,Akira Yamada","Fabrication of 4-terminal perovskite//CIGS tandem solar cell using optical splitting method","Top-PV 2017",,,,,,2017,Nov. "西村 昂人","多接合型太陽電池応用に向けたp 型透明CuI 薄膜の作製","第78回応用物理学会秋季学術講演会",,,,,,2017,Sept. "Takahito Nishimura,Soma Toki,Hiroki Sugiura,Kazuyoshi Nakada,Akira Yamada","Mechanism of Efficiency Enhancement of Cu(In,Ga)Se2 solar cells by Insertion of Cu-deficient Layer in solar cell performances","33rd European Photovoltaic Solar Energy Conference and Exhibition (EU-PVSEC2017)",,,,,,2017,Sept. "陳?文,Takahito Nishimura,Kazuyoshi Nakada,洪儒生,AKIRA YAMADA","Investigating of Se Irradiation Process for Cu(In,Ga)Se2 Solar Cells by Time Resolved-Photoluminescence Measurement","第78回応用物理学会秋季学術講演会",,,,,,2017,Sept. "西村 昂人,陳 ?文,杉浦 大樹,中田 和吉,山田 明","Se照射プロセスを導入したCu(In,Ga)Se2太陽電池のカソードルミネッセンス法を用いた欠陥特性評価","第78回応用物理学会秋季学術講演会",,,,,,2017,Sept. "中田 和吉,西村 昂人,沼田 陽平,宮坂 力,山田 明","光学スプリッティング法による4端子ペロブスカイト// Cu(In,Ga)Se2タンデム太陽電池の評価","第14回 「次世代の太陽光発電システム」シンポジウム",,,,,,2017,July "Tomohiro Ogihara,Adiyudha Sadono,Takahito Nishimura,Kazuyoshi Nakada,Akira Yamada","Control of valence band offset of Cu(In,Ga)Se2 solar cells with single-graded band profile",,"Japanese Journal of Applied Physics",," 56",," 062301",2017,May "杉浦 大樹,西村 昂人,土岐 爽真,中田 和吉,山田 明","Cu-poor層を有するCu(In,Ga)Se2太陽電池におけるCd及びZn拡散効果の実験的検証","第64回応用物理学会春季学術講演会",,,,,,2017,Mar. "西村 昂人,土岐 爽真,杉浦 大樹,中田 和吉,山田 明","Cu(In,Ga)Se2表面Cu欠損層制御によるCu(In,Ga)Se2太陽電池高効率化","第64回応用物理学会春季学術講演会",,,,,,2017,Mar. "Kazuyoshi Nakada,Takahito Nishimura,Youhei Numata,Tsutomu Miyasaka,AKIRA YAMADA","Fabrication of 4 terminal perovskite//CIGS tandem solar cell using optical splitting method","International Conference Asia-Pacific Hybrid and Organic Photovoltaics (AP-HOPV17)",,,,,,2017,Feb. "Takahito Nishimura,Soma Toki,Hiroki Sugiura,Kazuyoshi Nakada,AKIRA YAMADA","Interfacial Control by Introducing Se-interval Time during Growth of Cu(In,Ga)Se2 for Performance Enhancement of Cu(In,Ga)Se2 Solar Cells","The Fifth International Education Forum on Environment and Energy Science",,,,,,2016,Dec. "Takahito Nishimura,Hiroki Sugiura","Realization of High Performance Cu(In,Ga)Se2 solar cell by Interfacial Control","Honda Y-E-S Forum 2016",,,,,,2016,Nov. "Takahito Nishimura,Soma Toki,Hiroki Sugiura,Kazuyoshi Nakada,AKIRA YAMADA","Interface-quality Improvement by Controlling Cu(2-x)Se layer in Three-stage Method for High Efficiency Cu(In, Ga)Se2 Solar Cells","26th International Photovoltaic Science and Engineering Conference (PVSEC-26)",,,,,,2016,Oct. "Takahito Nishimura,Soma Toki,Hiroki Sugiura,Kazuyoshi Nakada,AKIRA YAMADA","Structural, Electrical, and Compositional Analysis of Surface and Grain Boundary for Cu(In,Ga)Se2 Solar Cells by EBSD/SSRM/TEM-EDX","20th International Conference on Ternary and Multinary Compounds (ICTMC-20)",,,,,,2016,Sept. "杉浦大樹,西村昂人,土岐爽真,中田和吉,山田明","Cu(In,Ga)3Se5 層を有する Cu(In,Ga)Se2 太陽電池における CdSO4 表面処理による Cd 拡散効果の実験的検証","第77回応用物理学会秋季学術講演会",,,,,,2016,Sept. "西村昂人,土岐爽真,杉浦大樹,中田和吉,山田明","三段階法におけるインターバル時間導入による Cu(In,Ga)Se2 太陽電池の高効率化","第77回応用物理学会秋季学術講演会",,,,,,2016,Sept. "Takahito Nishimura,Souma Toki,Hiroki Sugiura,Kazuyoshi Nakada,AKIRA YAMADA","Interfacial quality improvement of Cu(In,Ga)Se2 thin film solar cells by Cu-depletion layer formation",,"Applied Physics Express",,"Vol. 9",,"pp. 092301",2016,Aug. "Soma Toki,Takahito Nishimura,Hiroki Sugiura,Kazuyoshi Nakada,AKIRA YAMADA","Improvement of Cu(In,Ga)Se2 photovoltaic performance by adding Cu-poor compounds Cu(In,Ga)3Se5 at Cu(In,Ga)Se2/CdS interface","IEEE PVSC 43rd",,,,,,2016,June "土岐爽真,西村昂人,山田明","Cu(In,Ga)Se2/CdS界面へのCu(In,Ga)3Se5挿入によるCu(In,Ga)Se2太陽電池の高効率化","第63回応用物理学会春季学術講演会",,,,,,2016,Mar. "土岐爽真,西村 昂人,山田 明","CIGS太陽電池の高効率化に向けた結晶粒界評価による再結合抑制効果の検証","応用物理学会 「多元系化合物・太陽電池研究会」年末講演会",,,,,,2015,Dec. "Takahito Nishimura,Soma Toki,Akira Yamada","Surface and Grain Boundary Improvement by Valence Band Control for High Efficiency Cu(In,Ga)Se2 thin-film Solar cells","The Fourth International Education Forum on Environment and Energy Science",,,,,,2015,Dec. "荻原 知寛,サドノ アディユダ,西村 昂人,山田 明","単傾斜構造を有するCu(In,Ga)Se2太陽電池の界面価電子帯制御による高効率化","第76回応用物理学会秋季学術講演会",,,,,,2015,Sept. "Takahito Nishimura,Yoshiaki Hirai,Yasuyoshi Kurokawa,AKIRA YAMADA","Control of valence band offset at CdS/Cu(In,Ga)Se2 interface by inserting wide-bandgap materials for suppression of interfacial recombination in Cu(In,Ga)Se2 solar cells",,"Japanese Journal of Applied Physics",,"Volume 54"," 8S1"," 08KC08",2015,July "Takahito Nishimura,Yoshiaki Hirai,Yasuyoshi Kurokawa,Akira Yamada","Fabrication of Cu(In,Ga)Se2 solar cells with a single graded band profile",,"Physica Status Solidi (b)",,"Vol. 252","No. 6","pp. 1235-1238",2015,May "Takahito Nishimura,Yoshiaki Hirai,Yasuyoshi Kurokawa,Akira Yamada","Theoretical and Experimental Investigation of the Recombination Reduction at CdS/Cu(In,Ga)Se2 Interface by Valence and control","2015 MRS Spring Meeting & Exhibit Sanfransisco",,,,,,2015,Apr. "西村昂人,平井義晃,黒川康良,山田明","Cu(InGa)Se2薄膜太陽電池の価電子帯制御による界面再結合抑制効果の理論及び実験的検証","第62回応用物理学会春季学術講演会",,,,,,2015,Mar. "T. Nishimura,Y. Hirai,Y. Kurokawa,A. Yamada","Improving efficiency of Cu(InGa)Se2 solar cells by inserting Cu(InGa)3Se5 interface layer","7th International Symposium on Innovative Solar Cells",,,,,,2015,Jan. "Takahito Nishimura,Yoshiaki Hirai,Yasuyoshi Kurokawa,AKIRA YAMADA","Influence by Inserting Wide-gap Material at CdS/Cu(In,Ga)Se2 Interface for Cu(In,Ga)Se2 Solar Cells","The 3rd International Education Forum on Environment and Energy Science",,,,,,2014,Dec. "T. Nishimura,Y. Hirai,Y. Kurokawa,A. Yamada","Suppression of Recombination at a CdS/CIGS Interface by Inserting Cu(In,Ga)3Se5 for Cu(In,Ga)Se2 Solar Cells","The 6th World Conference on Photovoltaic Energy Convension",,,,,,2014,Nov. "西村昂人,平井義晃,黒川康良,山田明","Cu(In,Ga)Se2太陽電池への Cu(In,Ga) 3Se5導入による界面再結合の抑制","第75回応用物理学会秋季学術講演会",,,,,,2014,Sept. "T. Nishimura,S. Kasashima,Y. Hirai,Y. Kurokawa,A. Yamada","Fabrication of Cu(In,Ga)Se2 solar cells with a single graded band profile","19th International Conference on Ternary and Multinary Compounds","ICTMC-19 Book of Abstracts",,,,"Page Thu-O-2A",2014,Sept. "平井義晃,西村昂人,黒川康良,山田明","高いGa組成を有するCu(InGa)Se2薄膜表面へのZnSe挿入が太陽電池特性に及ぼす影響","第11回 「次世代の太陽光発電システム」シンポジウム",,,,,,2014,July