H
Hachiro Nakanishi
Researcher at Tokyo University of Science
Publications - 46
Citations - 1278
Hachiro Nakanishi is an academic researcher from Tokyo University of Science. The author has contributed to research in topics: Thin film & Copper indium gallium selenide solar cells. The author has an hindex of 18, co-authored 46 publications receiving 1231 citations. Previous affiliations of Hachiro Nakanishi include Yamagata University & National Institute of Advanced Industrial Science and Technology.
Papers
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Widely tunable terahertz-wave generation in an organic crystal and its spectroscopic application
TL;DR: In this article, a dual-wavelength optical parametric oscillator (OPO) with two KTiOPO4 crystals as the input light source was developed, which has a tunable range from 1300-1450 nm and is pumped by a diode-pumped, frequency-doubled, Q-switched Nd:YAG laser with a pulse duration of 10 ns.
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Band gap energies of bulk, thin-film, and epitaxial layers of CuInSe2 and CuGaSe2
Shigefusa F. Chichibu,Shigefusa F. Chichibu,T. Mizutani,K. Murakami,T. Shioda,T. Kurafuji,Hachiro Nakanishi,S. Niki,Paul Fons,Akimasa Yamada +9 more
TL;DR: In this article, the band gap and excitonic resonance energies of high-quality bulk single crystals, polycrystalline thin films, and epitaxial layers of CuInSe2 and CuGaSe2 were determined as a function of temperature by means of photoreflectance, optical absorption (OA), and photoluminescence measurements.
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Fabrication of wide-gap Cu(In1−xGax)Se2 thin film solar cells: a study on the correlation of cell performance with highly resistive i-ZnO layer thickness
Shogo Ishizuka,Keiichiro Sakurai,Akimasa Yamada,Koji Matsubara,Paul Fons,Kakuya Iwata,S. Nakamura,Y. Kimura,T. Baba,Hachiro Nakanishi,Takeshi Kojima,S. Niki +11 more
TL;DR: In this article, the performance of wide-gap Cu(In1−xGax)Se2 (CIGS) solar cells with the thickness of highly resistive i-ZnO layers, which are commonly introduced between the buffer layer and the transparent conductive oxide (TCO) layer, was studied.
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Ultralow-Dielectric-Constant Films Prepared from Hollow Polyimide Nanoparticles Possessing Controllable Core Sizes
Gufan Zhao,Takayuki Ishizaka,Hitoshi Kasai,Masatoshi Hasegawa,Takeo Furukawa,Hachiro Nakanishi,Hidetoshi Oikawa +6 more
TL;DR: In this article, the reprecipitation method and subsequent imidization were employed to prepare unique hollow polyimide nanoparticles (NPs) by blending a suitable polymer porogen with the PI precursor in the form of individual NPs.
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Localized exciton dynamics in strained cubic In0.1Ga0.9N/GaN multiple quantum wells
Shigefusa F. Chichibu,Mutsumi Sugiyama,Takeyoshi Onuma,T. Kitamura,Hachiro Nakanishi,T. Kuroda,Atsushi Tackeuchi,T. Sota,Yuuki Ishida,Hajime Okumura +9 more
TL;DR: In this paper, the temperature-dependent time-resolved photoluminescence (TRPL) spectroscopy was used to study the radiative and non-radiative recombination dynamics in In0.1Ga0.9N/c-GaN multiple quantum wells.