a-SiGe:H Alloy and its Application to Tandem-Type Solar Cell

1986 ◽  
Vol 70 ◽  
Author(s):  
Y. Yukimoto ◽  
M. Aiga
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Amorphous Silicon ◽  
Cell Size ◽  
Conversion Efficiency ◽  
High Conversion ◽  
High Conversion Efficiency ◽  
Silicon Alloy

ABSTRACTAmorphous SiGe:H alloy is the key material in achieving high conversion efficiency with tandem-type amorphous silicon alloy solar cells. Status and issues for this key material are discussed, and efforts made to irprove it are reviewed to obtain directions for higher quality a-SiGe:H alloys. An application of the improved alloy to tandem-type solar cell to achieve 9.6% efficiency for the cell size of 100 cm2 is reported.

Improving the Conversion Efficiency and Decreasing the Thickness of the HIT Solar Cell

2009 ◽  
Vol 1210 ◽  
Author(s):  
Hirotada Inoue ◽  
Yasufumi Tsunomura ◽  
Daisuke Fujishima ◽  
Ayumu Yano ◽  
Shigeharu Taira ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Conversion Efficiency ◽  
Surface Passivation ◽  
Crystalline Silicon ◽  
Surface Recombination ◽  
High Conversion ◽  
Surface Recombination Velocity ◽  
Substrate Thickness ◽  
High Conversion Efficiency

AbstractIn order to reduce the power-generating cost of silicon solar cells, it is necessary to achieve a high conversion efficiency using a thinner crystalline silicon (c-Si) substrate. The HIT (Heterojunction with Intrinsic Thin-layer) solar cell is an amorphous silicon (a-Si) / c-Si heterojunction solar cell that exhibits the potential to make this possible. Our recent R&D activities have achieved the world’s highest conversion efficiency of 23.0% with a practical sized (100.4 cm2) HIT solar cell, by improving the quality of the surface passivation, reducing the optical absorption loss and reducing the resistance loss. We have also developed a HIT solar cell with a thickness of only 98 mm, which has a very high conversion efficiency of 22.8%. This value is comparable to that of the conventional HIT solar cell, which has a thickness of more than 200 mm. Moreover, we have fabricated HIT solar cells using thinner c-Si substrates (96 to 58 μm), and found that the Voc increased with decreases in the substrate thickness, and reached an extremely high value of 0.745 V with a thickness of only 58 μm. This indicates that the surface recombination velocity of the HIT structure is extremely low due to the excellent passivation of the c-Si surface.

Mechanically Stacked GaAs/GaInAsP Dual-Junction Solar Cell with High Conversion Efficiency of More than 31%

2005 ◽  
Vol 44 (No. 31) ◽  
pp. L988-L990 ◽  
Author(s):  
Takashi Yamada ◽  
Akihiro Moto ◽  
Yasuhiro Iguchi ◽  
Mitsuo Takahashi ◽  
So Tanaka ◽  
...  
Keyword(s):  
Solar Cell ◽  
Conversion Efficiency ◽  
High Conversion ◽  
High Conversion Efficiency ◽  
Junction Solar Cell

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

High conversion efficiency photoelectrochemical solar cells

1996 ◽  
Vol 52 (3) ◽  
pp. 125-192 ◽  
Author(s):  
R.N. Pandey ◽  
K.S.Chandra Babu ◽  
O.N. Srivastava
Keyword(s):  
Solar Cells ◽  
Conversion Efficiency ◽  
High Conversion ◽  
High Conversion Efficiency ◽  
Photoelectrochemical Solar Cells

High-conversion-efficiency organic dye-sensitized solar cells with a novel indoline dye

2008 ◽  
pp. 5194 ◽  
Author(s):  
Seigo Ito ◽  
Hidetoshi Miura ◽  
Satoshi Uchida ◽  
Masakazu Takata ◽  
Koichi Sumioka ◽  
...  
Keyword(s):  
Solar Cells ◽  
Conversion Efficiency ◽  
Dye Sensitized Solar Cells ◽  
Organic Dye ◽  
High Conversion ◽  
High Conversion Efficiency ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

scholarly journals Highly connected hierarchical textured TiO2spheres as photoanodes for dye-sensitized solar cells

2014 ◽  
Vol 2 (23) ◽  
pp. 8902-8909 ◽  
Author(s):  
Jianjian Lin ◽  
Andrew Nattestad ◽  
Hua Yu ◽  
Yang Bai ◽  
Lianzhou Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Aspect Ratio ◽  
Conversion Efficiency ◽  
High Aspect Ratio ◽  
Dye Sensitized Solar Cells ◽  
High Conversion ◽  
High Conversion Efficiency ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Highly connected hierarchical textured TiO2spheres, composed of high aspect-ratio nanosheets, gave high conversion efficiency in dye-sensitized solar cells.

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