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Hidefumi Akiyama

National Institute for Materials Science

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Featured researches published by Hidefumi Akiyama.

Archive | 2002

Growing smooth semiconductor layers

Hidefumi Akiyama; Loren N. Pfeiffer; Kenneth W. West

2017 IEEE 44th Photovoltaic Specialist Conference (PVSC) | 2017

Notice of Removal Diagnosis of GaInAs multiple-quantum-well solar cells with Bragg reflectors via absolute electroluminescence

Lin Zhu; Masahiro Yoshita; JiaLing Tsai; YiChin Wang; Chung-Yu Hong; Guochung Ghi; Changsu Kim; Peichen Yu; Hidefumi Akiyama

Archive | 2014

Light emitting element, reference light source, and phosphor observation method

英文秋山; Hidefumi Akiyama; 吉田正裕; Masahiro Yoshita; 克裕近江谷; Yoshihiro Ohmiya; 英博久保田; Hidehiro Kubota; 謙雄森; Kaneo Mori; 正博下川原; Masahiro Shimogawara

Meeting abstracts of the Physical Society of Japan | 2008

20aYK-3 Photoluminescence excitation spectroscopy on asymmetric line shapes of weakly localized excitons in a quantum well due to interface roughness

Shun Maruyama; Toshiyuki Ihara; Hirotake Itoh; Masahiro Yoshita; Hidefumi Akiyama; Loren N. Pfeiffer; Kenneth W. West

Archive | 2004

Crossover of excitons to an electron-hole plasma with bi-excitonic correlations in a single quantum wire

Masahiro Yoshita; Yuhei Hayamizu; Hidefumi Akiyama; Loren N. Pfeiffer; Kenneth W. West; Kenichi Asano; Tetsuo Ogawa

Meeting abstracts of the Physical Society of Japan | 2004

28pPSB-7 High-density 1D excitonic effects in a high-quality single T-shaped quantum wire III

Masahiro Yoshita; Yuhei Hayamizu; Hidefumi Akiyama; L. N. Pfeiffer; Ken West

Archive | 2003

Carrier diusion on atomicallyat (1 1 0) GaAs quantum wells

Ji-Won Oh; Masahiro Yoshita; Hirotake Itoh; Hidefumi Akiyama; Loren N. Pfeier; Kenneth W. West

Semiconductor Quantum Dots II | 2001

Effects of post-annealing on photoluminescence properties of GaAs quantum dots grown by droplet epitaxy

Katsuyuki Watanabe; Shiro Tsukamoto; Y. Imanaka; Tadashi Takamasu; Giyu Kido; Yoshihiko Gotoh; Nobuyuki Koguchi; Masahiro Yoshita; Shinichi Watanabe; Hidefumi Akiyama

Meeting abstracts of the Physical Society of Japan | 2001

Contribution of biexcitons to lasing in AlGaAs quantum well structures by optical pumping at low temperature

Yasushi Takahashi; Shinichi Watanabe; Masahiro Yoshita; Hidefumi Akiyama; Loren Ofeiffer; Kenneth W. West

Archive | 2000

FabricationandopticalpropertiesofGaAs=AlGaAsquantumdot grownintetrahedral-shapedrecessesonGaAs(111)Bsubstrates byMOVPE

Tomoko Tsujikawa; Seiichiro Mori; Hiroshi Watanabe; Masahiro Yoshita; Hidefumi Akiyama; Rob van Dalen; Kentaro Onabe; Hiroyuki Yaguchi; Y. Shiraki; Ryoichi Ito

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