Solar cell, multi-junction solar cell, solar cell module, and photovoltaic power generation system
AssigneeKabushiki Kaisha Toshiba
InventorsTakashi YAMAMOTO, Soichiro SHIBASAKI, Kanta SUGIMOTO, Kazushige YAMAMOTO
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Abstract
A solar cell according to an embodiment includes a first transparent electrode, a p-type light absorbing layer provided on the first transparent electrode, a first n-type layer provided on the p-type light absorbing layer, a second n-type layer provided on the first n-type layer, a second transparent electrode provided on the second n-type layer, and an anti-reflection layer provided on the second transparent electrode. The refractive index of the second n-type layer is higher than the refractive index of the first n-type layer. The second n-type layer comprises a titanium-including metal oxide.
Claims20
A solar cell comprising:
- a first transparent electrode;
- a p-type light absorbing layer provided on the first transparent electrode;
- a first n-type layer provided on the p-type light absorbing layer;
- a second n-type layer provided on the first n-type layer;
- a second transparent electrode provided on the second n-type layer;
- and
- an anti-reflection layer provided on the second transparent electrode, wherein the refractive index of the second n-type layer is higher than the refractive index of the first n-type layer, and
- the second n-type layer comprises a titanium-including metal oxide.
Dependencies are inferred from the claim text.