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Thin-film solar cell

A technology of solar cells and thin films, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of low carrier collection efficiency, unavoidable resistance, and influence on photoelectric conversion efficiency, so as to facilitate horizontal collection and improve Effect of photoelectric conversion efficiency and resistance reduction

Pending Publication Date: 2015-10-14
CHINA TRIUMPH INT ENG +1
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Problems solved by technology

[0002] The transparent conductive layer of thin-film solar cells is made of semiconductor materials, such as ITO, FTO, AZO, etc. Under the premise of realizing the light transmittance requirements of solar cells, it cannot avoid the existence of resistance caused by its own material factors, making solar cell devices as lateral photoelectric The collection device has low carrier collection efficiency, which has become a bottleneck affecting its photoelectric conversion efficiency

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Embodiment Construction

[0013] The invention will be described in more detail below with reference to the accompanying drawings of specific embodiments of the invention. However, this invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0014] A thin film solar cell according to an embodiment of the present invention will now be described in detail with reference to the accompanying drawings.

[0015] According to the thin-film solar cell of the present invention, it includes a glass substrate, a transparent conductive layer, a photoelectric absorption layer, and a back electrode layer from bottom to top, and it is characterized in that the material of the transparent conductive layer is metal nanowires, and the photoelectric absorption layer The layer is a...

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Abstract

A thin-film solar cell comprises a glass substrate, a transparent conductive layer, a photoelectric absorption layer and a back electrode layer sequentially from bottom to top, and is characterized in that the transparent conductive layer is made of metal nanowires; the photoelectric absorption layer is an amorphous silicon, a microcrystalline silicon or a cadmium telluride thin film. According to the thin-film solar cell of the invention, the metal nanowire replaces a semiconductor transparent conductive film, such as AZO, ITO, FTO and the like, and thus, at the transmittance premise, resistance of the film layer is greatly reduced, lateral collection of photocarriers is more facilitated, resistance of a cell device is reduced, and the photoelectric conversion efficiency of the solar cell is improved.

Description

technical field [0001] The invention relates to the field of thin-film solar cells, in particular to a thin-film solar cell whose transparent conductive film is metal nanowires. Background technique [0002] The transparent conductive layer of thin-film solar cells is made of semiconductor materials, such as ITO, FTO, AZO, etc. Under the premise of realizing the light transmittance requirements of solar cells, it cannot avoid the existence of resistance caused by its own material factors, making solar cell devices as lateral photoelectric However, the carrier collection efficiency of the collection device is not high, which becomes the bottleneck affecting its photoelectric conversion efficiency. The conductivity of metal is far superior to that of semiconductors. At the same time, if the metal is made into a nanowire structure and arranged on a glass substrate as a light-transmitting and conductive solar window layer, it can achieve superior performance compared to traditio...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/0445H01L31/0224
CPCH01L31/022425Y02E10/50
Inventor 彭寿王芸崔介东石丽芬曹欣
Owner CHINA TRIUMPH INT ENG
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