反保衆志 (Hitoshi Tampo) - マイポータル

基本情報

所属: 国立研究開発法人産業技術総合研究所太陽光発電研究センター化合物薄膜チーム

J-GLOBAL ID: 200901048016918173
researchmap会員ID: 5000087415

外部リンク: http://www.aist.go.jp/RESEARCHERDB/cgi-bin/worker_detail.cgi?call=namae&rw_id=H58458129

研究分野

ナノテク・材料 / 薄膜、表面界面物性 /

論文

Deep learning ellipsometry: Ultrafast and high-accuracy determination of optical constants, film structures, and bandgaps

Ryosuke Oka, Yuki Yamamoto, James N. Hilfiker, Takuji Maekawa, Hitoshi Tampo, Takehiko Nagai, Hiroyuki Fujiwara

Materials Today Communications 48 113448-113448 2025年9月
Cu<inf>2</inf>O single crystal growth using CuCl flux and bandgap evaluation

Fumio Kawamura, Takehiko Nagai, Hitoshi Tampo

Materials Letters 365 2024年6月15日
Stability and gap states of amorphous In-Ga-Zn-Ox thin film transistors: Impact of sputtering configuration and post-annealing on device performance

Kosuke Takenaka, Shota Nunomura, Yuji Hayashi, Hibiki Komatsu, Susumu Toko, Hitoshi Tampo, Yuichi Setsuhara

Thin Solid Films 790 140203-140203 2024年2月
Fabrication of the bandgap-tuned alkaline earth-alloyed SnS solar cell

Fumio Kawamura, Yelim Song, Hidenobu Murata, Hitoshi Tampo, Takehiko Nagai, Takashi Koida, Jaeeun Jeon, Masataka Imura, Naoomi Yamada

Journal of the Ceramic Society of Japan 131(10) 708-711 2023年10月1日
Pressure-Induced Transition from Wurtzite and Epitaxial Stabilization for Thin Films of Rocksalt MgSnN₂

Kaede Makiuchi, Fumio Kawamura, Junjun Jia, Yelim Song, Shunichiro Yata, Hitoshi Tampo, Hidenobu Murata, Naoomi Yamada

Chemistry of Materials 2023年3月2日
Tunability of the bandgap of SnS by variation of the cell volume by alloying with A.E. elements

Fumio Kawamura, Yelim Song, Hidenobu Murata, Hitoshi Tampo, Takehiko Nagai, Takashi Koida, Masataka Imura, Naoomi Yamada

SCIENTIFIC REPORTS 12(1) 7434 2022年5月査読有り
Impacts of KF Post-Deposition Treatment on the Band Alignment of Epitaxial Cu(In,Ga)Se2 Heterojunctions

Takehiko Nagai, Jiro Nishinaga, Hitoshi Tampo, Shinho Kim, Kazuhiro Hirayama, Tatsuo Matsunobe, Guanzhong Chen, Yuya Ide, Shogo Ishizuka, Hajime Shibata …

ACS Applied Materials & Interfaces 14(14) 16780-16790 2022年4月13日
Dominant recombination path in low-bandgap kesterite CZTSe(S) solar cells from red light induced metastability

Mbafan S. Lyam, Torsten Hölscher, Matthias Maiberg, Antonio Cabas-Vidani, Alejandro Hernandez-Martinez, Hitoshi Tampo, Roland Scheer

Journal of Applied Physics 129(20) 2021年5月28日
Examination of Suitable Bandgap Grading of Cu(InGa)Se 2 Bottom Absorber Layers for Tandem Cell Application

Changwook Jeong, Takehiko Nagai, Shogo Ishizuka, Hitoshi Tampo, Shibata Hajime, Shinho Kim, Yangdo Kim

physica status solidi (a) 2021年3月12日
Improving the performance of pure sulfide Cu(InGa)S2 solar cells via injection annealing system

Ilyeong Kwon, Takehiko Nagai, Shogo Ishizuka, Hitoshi Tampo, Hajime Shibata, Shinho Kim, Yangdo Kim

Current Applied Physics 22 71-76 2021年2月
Large open-circuit voltage boosting of pure sulfide chalcopyrite Cu(In,Ga)S-2 prepared using Cu-deficient metal precursors

Shinho Kim, Takehiko Nagai, Hitoshi Tampo, Shogo Ishizuka, Hajime Shibata

PROGRESS IN PHOTOVOLTAICS 28(8) 816-822 2020年8月
Characterization of Surface and Heterointerface of Cu2ZnSn1-xGexSe4 for Solar Cell Applications

Takehiko Nagai, Shinho Kim, Hitoshi Tampo, Kohei Tanigawa, Yuya Iwamoto, Hiroya Hamada, Nobuyoshi Ohta, Hajime Shibata, Shigeru Niki, Norio Terada

PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS 14(4) 2020年4月
Sodium incorporation effect on morphological and photovoltaic properties for Cu2ZnSnSe4 solar cells

Hitoshi Tampo, Shinho Kim, Takehiko Nagai, Hajime Shibata

JAPANESE JOURNAL OF APPLIED PHYSICS 59 2020年2月
Improving the Open Circuit Voltage through Surface Oxygen Plasma Treatment and 11.7% Efficient Cu2ZnSnSe4 Solar Cell

Hitoshi Tampo, Shinho Kim, Takehiko Nagai, Hajime Shibata, Shigeru Niki

ACS APPLIED MATERIALS & INTERFACES 11(14) 13319-13325 2019年4月
Ultra-thin Cadmium Sulfide Electron-transporting Layer for Planar Perovskite Solar Cell

Myoung Kim, Takurou N. Murakami, Tae Woong Kim, Shinho Kim, Hitoshi Tampo, Masayuki Chikamatsu, Hiroshi Segawa

CHEMISTRY LETTERS 47(11) 1350-1353 2018年11月
Very small tail state formation in Cu2ZnGeSe4

Nagaya Keisuke, Fujimoto Shohei, Tampo Hitoshi, Kim Shinho, Nishiwaki Mitsutoshi, Nishigaki Yukinori, Kato Masato, Shibata Hajime, Fujiwara Hiroyuki

APPLIED PHYSICS LETTERS 113(9) 2018年8月27日査読有り
Tail state formation in solar cell materials: First principles analyses of zincblende, chalcopyrite, kesterite, and hybrid perovskite crystals

Nishiwaki, Mitsutoshi, Nagaya, Keisuke, Kato, Masato, Fujimoto, Shohei, Tampo, Hitoshi, Miyadera, Tetsuhiko, Chikamatsu, Masayuki, Shibata, Hajime, Fujiwara, Hiroyuki

PHYSICAL REVIEW MATERIALS 2(8) 2018年8月査読有り
Reduced recombination in a surface-sulfurized Cu(InGa)Se2 thin-film solar cell

Shinho Kim, Jiro Nishinaga, Yukiko Kamikawa, Shogo Ishizuka, Takehiko Nagai, Takashi Koida, Hitoshi Tampo, Hajime Shibata, Koji Matsubara, Shigeru Niki

Japanese Journal of Applied Physics 57(5) 6 2018年5月1日査読有り
Analysis of future generation solar cells and materials

Masafumi Yamaguchi, Lin Zhu, Hidefumi Akiyama, Yoshihiko Kanemitsu, Hitoshi Tampo, Hajime Shibata, Kan-Hua Lee, Kenji Araki, Nobuaki Kojima

Japanese Journal of Applied Physics 57(4) 6 2018年4月1日査読有り
How small amounts of Ge modify the formation pathways and crystallization of kesterites

S. Giraldo, E. Saucedo, M. Neuschitzer, F. Oliva, M. Placidi, X. Alcobé, V. Izquierdo-Roca, S. Kim, H. Tampo, H. Shibata …

Energy and Environmental Science 11(3) 582-593 2018年3月1日査読有り

もっとみる

MISC

Physical routes for the synthesis of kesterite

T. Ratz, G. Brammertz, R. Caballero, M. León, S. Canulescu, J. Schou, L. Gütay, D. Pareek, T. Taskesen, D. H. Kim …

JPhys Energy 1(4) 2019年10月1日
Effect of Combined Alkali (KF + CsF) Post-Deposition Treatment on Cu(InGa)Se2 Solar Cells

Shinho Kim, Hitoshi Tampo, Hajime Shibata, Koji Matsubara, Shigeru Niki

Physica Status Solidi - Rapid Research Letters 12(10) 2018年10月1日
ZnO系エピタキシャル薄膜の高品質化とヘテロ接合

仁木栄, 反保衆志, 柴田肇

應用物理 77(5) 500-507 2008年5月10日
Two-dimensional electron gas in Zn polar ZnMgO/ZnO heterostructures grown by radical source molecular beam epitaxy

H. Tampo, H. Shibata, K. Matsubara, A. Yamada, P. Fons, S. Niki, M. Yamagata, H. Kanie

APPLIED PHYSICS LETTERS 89(13) 132113-132115 2006年9月
Crystallographic growth orientation of Cu(InGa)Se-2 films in relation to substrate material nature

A. Yamada, K. Matsubara, S. Nakamura, S. Ishizuka, K. Sakurai, H. Tampo, H. Shibata, H. Nakanishi, S. Niki

PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE 203(11) 2639-2643 2006年9月
Soft X-ray XANES of N in ZnO : N - Why is doping so difficult?

P Fons, H Tampo, S Niki, AV Kolobov, M Ohkubo, J Tominaga, S Friedrich, R Carboni, F Boscherini

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS 246(1) 75-78 2006年5月
Direct observation of nitrogen location in molecular beam epitaxy grown nitrogen-doped ZnO

P Fons, H Tampo, AV Kolobov, M Ohkubo, S Niki, J Tominaga, R Carboni, F Boscherini, S Friedrich

PHYSICAL REVIEW LETTERS 96(4) 045504-1-045504-4 2006年2月
Photoluminescence recombination centers in ZnO

H Shibata, H Tampo, M Sakai, A Yamada, K Matsubara, K Sakurai, S Ishizuka, K Kim, P Fons, K Iwata …

PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 3, NO 4 3(4) 1026-+ 2006年
Determination of crystallographic polarity of ZnO bulk crystals and epilayers

H Tampo, P Fons, A Yamada, KK Kim, H Shibata, K Matsubara, H Yoshikawa, H Kanie, S Niki

PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 3, NO 4 3(4) 1018-+ 2006年
Determination of crystallographic polarity of ZnO layers

H Tampo, P Fons, A Yamada, KK Kim, H Shibata, K Matsubara, S Niki, H Yoshikawa, H Kanie

APPLIED PHYSICS LETTERS 87(14) 141904-141906 2005年10月
Excitation-power dependence of free exciton photoluminescence of semiconductors

H Shibata, M Sakai, A Yamada, K Matsubara, K Sakurai, H Tampo, S Ishizuka, KK Kim, S Niki

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS 44(8) 6113-6114 2005年8月
Effect of rapid thermal annealing on Al doped n-ZnO films grown by RF-magnetron sputtering

KK Kim, H Tampo, JO Song, TY Seong, SJ Park, JM Lee, SW Kim, S Fujita, S Niki

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS 44(7A) 4776-4779 2005年7月
Improvement of ZnO TCO film growth for photovoltaic devices by reactive plasma deposition (RPD)

K Iwata, T Sakemi, A Yamada, P Fons, K Awai, T Yamamoto, S Shirakata, K Matsubara, H Tampo, K Sakurai …

THIN SOLID FILMS 480 199-203 2005年6月
Photoluminescence characterization of excitonic centers in ZnO epitaxial films

M Watanabe, M Sakai, H Shibata, H Tampo, P Fons, K Iwata, A Yamada, K Matsubara, K Sakurai, S Ishizuka …

APPLIED PHYSICS LETTERS 86(22) 221907-1-221907-3 2005年5月
The effects of thermal treatments on the electrical properties of phosphorus doped ZnO layers grown by MBE

H Tampo, H Shibata, P Fons, A Yamada, K Matsubara, K Iwata, K Tamura, H Takasu, S Niki

JOURNAL OF CRYSTAL GROWTH 278(1-4) 268-272 2005年5月
CuInGaSe2系薄膜太陽電池の現状と今後の課題

電子通信情報学会誌 C(9) 677-685 2005年
Built-in potential and open circuit voltage of heterojunction CuIn1-xGaxSe2 solar cells

A Yamada, K Matsubara, K Sakurai, S Ishizaka, H Tampo, H Shibata, T Baba, Y Kimura, S Nakamura, H Nakanishi …

Thin-Film Compound Semiconductor Photovoltaics 865 167-172 2005年
Effect of band offset on the open circuit voltage of heterojunction CuIn1-xGaxSe2 solar cells

A Yamada, K Matsubara, K Sakurai, S Ishizuka, H Tampo, PJ Fons, K Iwata, S Niki

APPLIED PHYSICS LETTERS 85(23) 5607-5609 2004年12月
InGaN-based light-emitting diodes fabricated with transparent Ga-doped ZnO as ohmic p-contact

K Tamura, K Nakahara, M Sakai, A Nakagawa, NIM Sonobe, H Takasu, H Tampo, P Fons, K Matsubara, K Iwata …

PHYSICA STATUS SOLIDI A-APPLIED RESEARCH 201(12) 2704-2707 2004年9月
Band-gap modified Al-doped Zn1-xMgxO transparent conducting films deposited by pulsed laser deposition

K Matsubara, H Tampo, H Shibata, A Yamada, P Fons, K Iwata, S Niki

APPLIED PHYSICS LETTERS 85(8) 1374-1376 2004年8月

もっとみる

共同研究・競争的資金等の研究課題

多元系エピタキシャル半導体薄膜を用いた多様な欠陥の評価と制御

日本学術振興会科学研究費助成事業基盤研究(B) 2021年4月 - 2024年3月

反保衆志, 永井武彦
多元系化合物半導体の少数キャリア拡散長の定量化手法の研究

日本学術振興会科学研究費助成事業基盤研究(C) 2019年4月 - 2022年3月

柴田肇, 反保衆志, 今中康貴