N-type high-efficiency low-cost solar cell structure and cell assembly thereof

The invention relates to an N-type high-efficiency low-cost solar cell structure and a cell assembly thereof, the N-type high-efficiency low-cost solar cell structure comprises an N-type silicon substrate, a PN emitter junction layer is arranged on the front surface of the N-type silicon substrate,...

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Bibliographic Details
Main Authors HE FACHAO, ZHU GEJUN, ZHOU JIAN, WEI ZUYI
Format Patent
LanguageChinese
English
Published 19.07.2024
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
SEMICONDUCTOR DEVICES
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Summary:The invention relates to an N-type high-efficiency low-cost solar cell structure and a cell assembly thereof, the N-type high-efficiency low-cost solar cell structure comprises an N-type silicon substrate, a PN emitter junction layer is arranged on the front surface of the N-type silicon substrate, a first tunneling layer is arranged on the surface of the PN emitter junction layer, and a second tunneling layer is arranged on the surface of the first tunneling layer. The surface of the first tunneling layer is provided with at least one first doped polycrystalline silicon layer, the surface of the outermost first doped polycrystalline silicon layer is provided with a passivation layer, and the surface of the passivation layer is provided with a first antireflection layer; a second tunneling layer is arranged on the back face of the N-type silicon substrate, at least one second doped polycrystalline silicon layer is arranged on the surface of the second tunneling layer, and a second antireflection layer is arra
Bibliography:Application Number: CN202410606526