Amorphous silicon-crystal silicon heterojunction solar battery
A solar cell and crystalline silicon technology, applied in the field of solar cells, can solve the problems of large voltage, increase the lateral conduction resistance of the N-type thin layer, affect the photoelectric conversion efficiency of the battery, etc., so as to reduce the series resistance, improve the photoelectric conversion efficiency, reduce the The effect of coverage
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[0016] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0017] Fig. 3 is an embodiment of the present invention taking the P-type substrate material as an example, a schematic structural view of an amorphous silicon-crystalline silicon heterojunction solar cell, including: a light-receiving surface electrode 1, an N-type silicon diffusion layer 3, a P-type silicon Substrate layer 4 and back electrode 5. The present invention also prepares a layer of amorphous silicon film layer 8 between the light receiving surface electrode 1 and the N-type silicon diffusion layer 3 on the light-receiving surface side of the solar cell, and the amorphous silicon film layer 8 and the N-type silicon diffusion layer 3 form a different High-quality high-low junction structure, that is, amorphous silicon has the same conductivity type as the crystalline silicon it contacts. Therefore, the lamination sequence between different materia...
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