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Heterojunction solar cell and preparation method thereof

A technology of solar cells and heterojunctions, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of poor photoelectric conversion efficiency and packaging performance

Active Publication Date: 2021-09-28
ANHUI HUASUN ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the problems of poor photoelectric conversion efficiency and packaging performance of heterojunction solar cells in the prior art, thereby providing a heterojunction solar cell

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  • Heterojunction solar cell and preparation method thereof

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Embodiment Construction

[0052] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0053] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...

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Abstract

The invention provides a heterojunction solar cell and a preparation method thereof. The heterojunction solar cell comprises a semiconductor substrate layer, a back composite transparent conductive film positioned on one side of the semiconductor substrate layer, the back surface composite transparent conductive film comprises a first back surface transparent conductive film and a second back transparent conductive film positioned on the surface of one side, back to the semiconductor substrate layer, of the first back transparent conductive film; the first back transparent conductive film and the second back transparent conductive film are both doped with group III heavy atoms, and the concentration of the group III heavy atoms in the second back transparent conductive film is smaller than that of the group III heavy atoms in the first back transparent conductive film. According to the heterojunction solar cell and the preparation method thereof provided by the technical schemes, the photoelectric conversion efficiency and the packaging performance of the heterojunction solar cell are improved.

Description

technical field [0001] The invention relates to the technical field of photovoltaic cells, in particular to a heterojunction solar cell and a preparation method thereof. Background technique [0002] Solar cells are a kind of clean energy cells, and solar cells are widely used in life and production. Adding a layer of transparent conductive film (TCO) between the electrodes of solar cells, especially heterojunction solar cells and amorphous silicon can effectively increase the collection of carriers and improve the conversion efficiency of solar cells. [0003] The transparent conductive film includes a front transparent conductive film and a back transparent conductive film. At present, the setting of the transparent conductive film makes the heterojunction solar cells suffer from poor photoelectric conversion efficiency and poor packaging performance. For heterojunction solar cells, the optimization of the comprehensive performance of the back transparent conductive film...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/0224H01L31/0288H01L31/074H01L31/18
CPCH01L31/022483H01L31/022441H01L31/1888H01L31/1884H01L31/074H01L31/1804H01L31/0288Y02P70/50Y02E10/547H01L31/022466H01L31/0747H01L31/0203H01L31/022475H01L31/03685H01L31/1824
Inventor 辛科周肃龚道仁王文静徐晓华梅志纲杨龙
Owner ANHUI HUASUN ENERGY CO LTD
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