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Featured researches published by Shigenori Tsuruga.


photovoltaic specialists conference | 2010

Application of microcrystalline Si 1−x Ge x infrared absorbers in triple junction solar cells

Takuya Matsui; Haijun Jia; Michio Kondo; Kouichi Mizuno; Shigenori Tsuruga; Satoshi Sakai; Yoshiaki Takeuchi

In this contribution, we report the first results on the application of hydrogenated microcrystalline Si<inf>1−x</inf>Ge<inf>x</inf> (μc-Si<inf>1−x</inf>Ge<inf>x</inf>:H) as bottom cell absorber in triple junction solar cells. It has been demonstrated that μc-Si<inf>1−x</inf>Ge<inf>x</inf>:H films prepared by PECVD in a composition range x∼0.1–0.2 show an enhanced infrared response in a p-i-n single junction structure as compared with the conventional μc-Si:H (x=0) solar cells. Furthermore, in order to enhance the infrared absorption of solar cells, highly-textured front TCO layers with improved infrared transmittance have been developed by performing the chemical-etching of sputtered ZnO:Ga films followed by high-temperature (∼600 °C) annealing. By applying these μc-Si<inf>1−x</inf>Ge<inf>x</inf>:H and TCO layers to triple junction devices, so far, we obtained an initial efficiency of 11.6% (J<inf>sc</inf>=9.2 mA/cm<sup>2</sup>, V<inf>oc</inf>=1.82 V, FF=0.70) in a structure of a-Si:H (0.18 µm)/μc-Si:H (2.0 µm)/μc-Si<inf>0.9</inf>Ge<inf>0.1</inf>:H (2.2 µm). Spectral response measurement indicates that the photocurrent densities of three component cells are nearly balanced at ∼9 mA/cm<sup>2</sup> with a total photocurrent density of 27.6 mA/cm<sup>2</sup>. Light-soaking test indicates that the degradation ratio is about 5%.


Analytical Chemistry | 2005

VUV single-photon ionization ion trap time-of-flight mass spectrometer for on-line, real-time monitoring of chlorinated organic compounds in waste incineration flue gas.

Shizuma Kuribayashi; Hideo Yamakoshi; Minoru Danno; Satoshi Sakai; Shigenori Tsuruga; Hiroshi Futami; Shigeki Morii


Environmental Science & Technology | 2007

On-line monitoring system of P5CDF homologues in waste incineration plants using VUV-SPI-IT-TOFMS

Shigenori Tsuruga; Takumi Suzuki; Yasuhiro Takatsudo; Katsuo Seki; Sumio Yamauchi; Shizuma Kuribayashi; Shigeki Morii


Archive | 2007

Optical properties restoration apparatus, the restoration method, and an optical system used in the apparatus

Satoshi Sakai; Shigenori Tsuruga; Hideo Yamakoshi; Shizuma Kuribayashi; Minoru Danno; Hiroshi Futami; Noriko Yamazaki


Archive | 2003

Chemical substance detection apparatus and chemical substance detection method

Hideo Yamakoshi; Hiroshi Futami; Minoru Danno; Shigenori Tsuruga; Shizuma Kuribayashi


Archive | 2006

Device and method for manufacturing photoelectric conversion device

Atsuhiro Iyomasa; Tomotsugu Sakai; Koji Satake; Shigenori Tsuruga; Toshiya Watanabe; Hideo Yamakoshi; 宏次 佐竹; 智嗣 坂井; 英男 山越; 敦洋 彌政; 俊哉 渡辺; 薫典 鶴我


Current Science | 2015

Transmutation Reactions Induced by Deuterium Permeation through Nano-Structured Palladium Multilayer Thin Film

Yasuhiro Iwamura; Takehiko Itoh; Shigenori Tsuruga


Archive | 2007

Security gate system and security gate control method

Takehiko Itou; Shizuma Kuribayashi; Yasuhiro Iwamura; Shigehiro Nukatsuka; Shigenori Tsuruga; Shinya Ishii


Archive | 2013

Nuclide conversion method and nuclide conversion device

Yasuhiro Iwamura; Takehiko Itou; Kenji Muta; Shigenori Tsuruga


Archive | 2009

Photovoltaic device and process for producing photovoltaic device

Shigenori Tsuruga; Kengo Yamaguchi; Saneyuki Goya; Satoshi Sakai

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Satoshi Sakai

National Institute of Advanced Industrial Science and Technology

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Hideo Yamakoshi

Mitsubishi Heavy Industries

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Hiroshi Futami

Mitsubishi Heavy Industries

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Minoru Danno

Mitsubishi Heavy Industries

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Noriko Yamazaki

Mitsubishi Heavy Industries

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Kengo Yamaguchi

Mitsubishi Heavy Industries

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Saneyuki Goya

Mitsubishi Heavy Industries

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Takehiko Itou

Mitsubishi Heavy Industries

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