Hiroki Awano
Toyota
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Publication
Featured researches published by Hiroki Awano.
Applied Physics Express | 2013
Mitsutaro Umehara; Yasuhiko Takeda; Tomoyoshi Motohiro; Takenobu Sakai; Hiroki Awano; Ryosuke Maekawa
We have fabricated Cu2Sn1-xGexS3 thin-film solar cells by cosputtering deposition of Cu and Sn followed by sulfurization in S and GeS2 vapors. The conversion efficiency was significantly improved to be as high as 6.0% compared with the values of Cu2SnS3 solar cells similarly fabricated. Scanning electron microscopy observation revealed that alloying with Ge accelerated the grain growth during the sulfurization process, contributing to the improvement in the conversion efficiency. The bandgap energy of Cu2Sn0.83Ge0.17S3 was about 1.0 eV, which is suitable for bottom cells used in double-junction solar cells.
Archive | 2005
Wen Li; Hiroki Awano; Gerald Perron
Archive | 2010
Yasushi Tsuchida; Hiroki Awano
Archive | 2010
Hiroki Awano
Archive | 2006
Hisashi Yamamoto; Masaki Matsui; Hiroki Awano; Motoshi Isono
Archive | 2005
Gerald Perron; Wen Li; Hiroki Awano
Archive | 2013
Ryosuke Maekawa; Hiroki Awano; Tomoya Matsunaga; Yuichiro Takeda; Takenobu Sakai; Yuya Kusano
Archive | 2002
Ryosuke Maekawa; Hiroki Awano; Tomoya Matsunaga; Yuichiro Takeda; Takenobu Sakai; Yuya Kusano
Archive | 2012
Ryosuke Maekawa; Hiroki Awano; Tomoya Matsunaga; Yuichiro Takeda; Takenobu Sakai
Archive | 2014
Takenobu Sakai; Hiroki Awano; Ryosuke Maekawa; Taro Ueda; Seiji Takahashi
