M
Masahiro Hirano
Researcher at Asahi Glass Co.
Publications - 154
Citations - 11135
Masahiro Hirano is an academic researcher from Asahi Glass Co.. The author has contributed to research in topics: Laser & Thin film. The author has an hindex of 52, co-authored 154 publications receiving 10471 citations.
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Carrier transport in transparent oxide semiconductor with intrinsic structural randomness probed using single-crystalline InGaO3(ZnO)5 films
TL;DR: In this article, the authors investigated carrier transport in a crystalline oxide semiconductor InGaO3(ZnO)5 using single-crystalline thin films and showed that when carrier concentration is less than 2×1018cm−3, logarithm of electrical conductivity decreases in proportion to T−1∕4 and room-temperature Hall mobility was as low as ∼1cm2(Vs)−1.
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Deep-ultraviolet transparent conductive β-Ga2O3 thin films
TL;DR: In this article, β-Ga2O3 with an energy band gap of 4.9 eV was prepared on silica glass substrates by a pulsed-laser deposition method, and the resulting internal transmittance at the wavelength (248 nm) of the KrF excimer laser exceeded 50% for the 100-nm-thick film.
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p-channel thin-film transistor using p-type oxide semiconductor, SnO
Yoichi Ogo,Hidenori Hiramatsu,Kenji Nomura,Hiroshi Yanagi,Toshio Kamiya,Masahiro Hirano,Hideo Hosono +6 more
TL;DR: In this paper, the authors reported that tin monoxide (SnO) has a high hole mobility and produces good p-type oxide thin-film transistors (TFTs).
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Current injection emission from a transparent p–n junction composed of p-SrCu2O2/n-ZnO
Hiromichi Ohta,Kenichi Kawamura,Masahiro Orita,Masahiro Hirano,Nobuhiko Sarukura,Hideo Hosono +5 more
TL;DR: An ultraviolet light-emitting diode (LED) operating at room temperature was realized using a p–n heterojunction composed of transparent conductive oxides, p-SrCu2O2 and n-ZnO using conventional photolithography with the aid of reactive ion etching to fabricate the LED device.
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Fabrication and photoresponse of a pn-heterojunction diode composed of transparent oxide semiconductors, p-NiO and n-ZnO
Hiromichi Ohta,Masahiro Hirano,Ken Nakahara,Hideaki Maruta,Tetsuhiro Tanabe,Masao Kamiya,Toshio Kamiya,Hideo Hosono +7 more
TL;DR: In this paper, a transparent trilayered oxide films of ZnO/NiO/indium tin oxide were heteroepitaxially grown on a YSZ (111) substrate by pulsed-laser deposition combined with a solid-phaseepitaxy technique.