Cu2Sn1-xGexS3(x= 0.17) Thin-Film Solar Cells with High Conversion Efficiency of 6.0%

2013 ◽  
Vol 6 (4) ◽  
pp. 045501 ◽  
Author(s):  
Mitsutaro Umehara ◽  
Yasuhiko Takeda ◽  
Tomoyoshi Motohiro ◽  
Takenobu Sakai ◽  
Hiroki Awano ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Conversion Efficiency ◽  
Thin Film Solar Cells ◽  
High Conversion ◽  
High Conversion Efficiency

Development of Earth-abundant CZTS Thin Film Solar Cells with Sulfurization Technique

2014 ◽  
Vol 1670 ◽  
Author(s):  
Hironori Katagiri ◽  
Kazuo Jimbo ◽  
Tsukasa Washio
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Conversion Efficiency ◽  
Mass Production ◽  
Thin Film Solar Cells ◽  
Fabrication Method ◽  
High Conversion Efficiency ◽  
Earth Abundant ◽  
Stage Process ◽  
Compound Target

ABSTRACTCu2ZnSnS4 (henceforth CZTS) absorber layers are successfully synthesized by a sulfurization technique of physical vapor deposited precursors. In our previous report, we have clarified that the off-stoichiometry composition of Cu-poor and Zn-rich is desirable to achieve high conversion efficiency. By using CZTS compound target that provide such active composition, we could conduct a simple single sputtering method to prepare CZTS absorber. In our laboratory, a two-stage process of precursor preparation followed by sulfurization is a major fabrication method from the start of this study. We think that this method is suitable for a mass production. An optimization of the sulfurization process is a quite important issue because the active composition was already revealed. In this paper, TG/DTA system available in the H2S atmosphere is introduced to optimize the sulfurization condition. As a result, bump-free CZTS films were prepared successfully and the fluctuation of J-V properties in one substrate was drastically suppressed.

Buffer layer replacement: A method for increasing the conversion efficiency of CIGS thin film solar cells

Optik ◽  
2017 ◽  
Vol 136 ◽  
pp. 222-227 ◽  
Author(s):  
M. Moradi ◽  
R. Teimouri ◽  
M. Saadat ◽  
M. Zahedifar
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Buffer Layer ◽  
Conversion Efficiency ◽  
Thin Film Solar Cells ◽  
Cigs Thin Film

Improved conversion efficiency of a-Si:H/µc-Si:H thin-film solar cells by using annealed Al-doped zinc oxide as front electrode material

2013 ◽  
Vol 22 (12) ◽  
pp. 1285-1291 ◽  
Author(s):  
Sebastian Neubert ◽  
Mark Wimmer ◽  
Florian Ruske ◽  
Sonya Calnan ◽  
Onno Gabriel ◽  
...  
Keyword(s):  
Thin Film ◽  
Zinc Oxide ◽  
Solar Cells ◽  
Conversion Efficiency ◽  
Electrode Material ◽  
Thin Film Solar Cells ◽  
Front Electrode

Porphyrin Assembly with Fullerenes for Photovoltaic Applications

2008 ◽  
Vol 1091 ◽  
Author(s):  
Takashi Sagawa ◽  
Osamu Yoshikawa ◽  
Hirokuni Jintoku ◽  
Makoto Takafuji ◽  
Hirotaka Ihara ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Solar Cells ◽  
Solar Energy ◽  
Conversion Efficiency ◽  
Thin Film Solar Cells ◽  
Organic Thin Film ◽  
Photovoltaic Applications

AbstractMorphologically controllable thin-films of a zinc-containing tetraphenylporphyrin (ZnTPP) combined with an L-glutamide lipid has been fabricated and complexation of ZnTPP with fullerene was examined for organic thin-film solar cells, which gave 3 times enhancement of solar energy-to-electricity conversion efficiency through chlorobenzene-annealing in comparison with the conversion efficiency of untreated one.

5× 5 cm2GaAs and GaInAs Solar Cells with High Conversion Efficiency

2005 ◽  
Vol 44 (No. 31) ◽  
pp. L985-L987 ◽  
Author(s):  
Takashi Yamada ◽  
Akihiro Moto ◽  
Yasuhiro Iguchi ◽  
Mitsuo Takahashi ◽  
So Tanaka ◽  
...  
Keyword(s):  
Solar Cells ◽  
Conversion Efficiency ◽  
High Conversion ◽  
High Conversion Efficiency
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