Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Tsuyoshi Takahama"'
Autor:
Tsutomu Yamaguchi, Tsuyoshi Takahama, Eiji Maruyama, Naoteru Matsubara, Shingo Okamoto, Takahiro Mishima, Mikio Taguchi, Yoshinari Ichihashi, Tsutomu Yamanishi, Daisuke Fujishima, Masato Shigematsu, Motohide Kai, Naoki Yoshimura, Keiichiro Masuko, Taiki Hashiguchi
Publikováno v:
IEEE Journal of Photovoltaics. 4:1433-1435
The crystalline silicon heterojunction structure adopted in photovoltaic modules commercialized as Panasonic's HIT has significantly reduced recombination loss, resulting in greater conversion efficiency. The structure of an interdigitated back conta
Publikováno v:
Solar Energy Materials and Solar Cells. 34:285-289
The solid phase crystallization (SPC) method has been studied for fabricating polycrystalline (poly) Si thin films for solar cells. The approach was to optimize the “partial doping structure” (nondoped a-Si/phosphorus(P)-doped a-Si) which we prop
Autor:
Norihiro Terada, Tsuyoshi Takahama, Shoichi Nakano, T. Sawada, Makoto Tanaka, Shinya Tsuda, Hisaki Tarui
Publikováno v:
Solar Energy Materials and Solar Cells. 34:367-372
We have developed the first precise numerical simulator for thin-film solar cells with two-dimensional structures, such as a submicron textured a-Si solar cell. Conventional simulators for thin-film solar cells were all one-dimensional, which made pr
Autor:
Akio Takeoka, Yukinori Kuwano, Kunimoto Ninomiya, Hidenori Nishiwaki, Michotoshi Ohnishi, Shoichi Nakano, Shingo Okamoto, Shinya Tsuda, Masato Nishikuni, Tsuyoshi Takahama
Publikováno v:
Progress in Photovoltaics: Research and Applications. 2:211-219
A new approach to high-performance a-Si solar cells was studied. a-Si films prepared at a high substrate temperature (> 250°C) have a higher absorption coefficient and a low SiH2 bond density. the effect of deposition temperature on the open-circuit
Autor:
Hidenori Nishiwaki, Tsuyoshi Takahama, Kenichiro Wakisaka, Shoichi Nakano, Yoshihiro Hishikawa, Shinya Tsuda, Hisaki Tarui
Publikováno v:
Journal of Non-Crystalline Solids. :679-684
Conversion efficiencies of a-Si solar cells have been significantly improved in recent years, and 12.0% efficiency was achieved for a 10 cm × 10 cm a-Si solar cell submodule. As new trials, a-Si technologies are also applied to the fabrication of cr
Autor:
Hisao Haku, Masato Nishikuni, Noboru Nakamura, Tsuyoshi Takahama, Shinya Tsuda, Hisaki Tarui, Yasuo Kishi, M. Tanaka
Publikováno v:
Solar Energy Materials. 23:227-238
The p layer is one of the key factors for improving conversion efficiency of amorphous silicon solar cells. This paper summarizes various approaches for achieving high quality p layers which are used in window layers of solar cells. Theoretical consi
Autor:
Shinya Tsuda, Shoichi Nakano, M. Tanaka, T. Sawada, Hisaki Tarui, Norihiro Terada, Tsuyoshi Takahama
Publikováno v:
Conference Record of the Twenty Third IEEE Photovoltaic Specialists Conference - 1993 (Cat. No.93CH3283-9).
A total-area conversion efficiency of 12.0% has been achieved for a 100 cm/sup 2/ single-junction a-Si solar cell, by the use of a high-quality i-layer and other successful techniques such as a high-quality buffer layer treated by hydrogen plasma. Fo
Autor:
Kunimoto Ninomiya, Yukinori Kuwano, Shoichi Nakano, Tsuyoshi Takahama, Yasuo Kishi, Shinya Tsuda, M. Ohnishi, Masato Nishikuni, Noboru Nakamura, Shingo Okamoto
Publikováno v:
IEEE Conference on Photovoltaic Specialists.
A total area conversion efficiency of 10.2% has been obtained for a 100 cm/sup 2/ a-Si solar cell. To further improve efficiency, a novel approach to preparing a-Si:H at a high substrate temperature (T/sub s/) with low impurity contamination has been
Autor:
Shinya Tsuda, Toshiaki Baba, Takao Matsuyama, Tsuyoshi Takahama, T. Sawada, Kenichiro Wakisaka
Publikováno v:
MRS Proceedings. 358
We succeeded, for the first time, in depositing a silicon film which features 1000Å-wide single-crystalline grains embedded in a matrix of amorphous tissue. The deposition was done by plasma-enhanced CVD from silane diluted with hydrogen at a consid
Autor:
Toshihiro Kinoshita, Tsuyoshi Takahama, Shinya Tsuda, Masao Isomura, Takao Matsuyama, Yoshihiro Hishikawa, Shingo Okamoto, Manabu Sasaki
Publikováno v:
SPIE Proceedings.
We have focused on the i-layer material in our efforts to improve in the conversion efficiency of a-Si:H solar cells. Reductions in the defect density has been also investigated from the viewpoints of extrinsic (impurities) and intrinsic effects. The