Solar cell and method for manufacturing the same
AssigneesSamsung Electronics Co., Ltd., Samsung SDI Co., Ltd.
InventorsJunhee Choi, Jai Yong Han, Andrei Zoulkarneev
Life of this patent
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Abstract
Disclosed are a relatively high-efficiency solar cell and a method for fabricating the same using a micro-heater array. The solar cell may include first and second micro-heaters intersecting each other or being parallel to each other on a substrate, and a plurality of InxGa1-xN p-n junction layers formed using the first and second micro-heaters. The solar cell has improved efficiency because sunlight with various wavelengths may be effectively absorbed by the plurality of InxGa1-xN p-n junction layers. Furthermore, relatively large-sized solar cells may be fabricated, because the plurality of InxGa1-xN p-n junction layers may be formed on a glass substrate using a micro-heater array.
Claims10
A solar cell comprising:
- a substrate;
- a first micro-heater having a first heating portion and first supports, the first heating portion extending in a first direction and spaced apart from the substrate by the first supports;
- a second micro-heater having a second heating portion and second supports, the second heating portion extending in a second direction so as to traverse the first heating portion while being spaced apart from the substrate by the second supports;
- and
- a plurality of InxGa1-xN p-n junction layers at a juncture of the first and second heating portions, x being a number from 0 to 1 and each of the plurality of InxGa1-xN p-n junction layers having a different value for x, the plurality of InxGa1-xN p-n junction layers being electrically-connected to the first and second heating portions and wherein the first and second supports are directly disposed on the substrate.
The solar cell of 1, further comprising:
- a lens above the second heating portion, the lens focusing sunlight onto the plurality of InxGa1-xN p-n junction layers.
Dependencies are inferred from the claim text.