Thin film solar cell preparation method

A technology of solar cells and thin films, applied in the field of solar cells, can solve the problems of unsuitability for commercial production, high manufacturing cost, toxicity, etc., and achieve the effects of facilitating commercial promotion and application, increasing open circuit voltage, and improving device efficiency

Inactive Publication Date: 2019-04-23
NANKAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The above process method is relatively complicated and the manufacturing cost is high
The metal cations involved in the cation doping experiments of CZTSSe thin film solar cells are expensive, toxic, and cannot be applied on a large scale, so they are not suitable for commercial production.

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Embodiment Construction

[0019] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. It should be understood that the specific The examples are only used to explain the present invention, not to limit the present invention. The described embodiments are only some, not all, embodiments of the present invention. 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.

[0020] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "vertical" and "horizontal" are based on the orientation or positional relation...

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Abstract

The invention discloses a thin film solar cell preparation method. The thin film solar cell preparation method comprises the following steps of: forming a back electrode on a substrate; forming a metal prefabricated layer on the back electrode, performing soaking treatment of the metal prefabricated layer in an NaF solution and drying the metal prefabricated layer, and performing post-selenylationprocessing of the dried metal prefabricated layer to form an absorption layer; forming a buffer layer; forming an intrinsic zinc oxide layer and a doped zinc oxide; and forming a top electrode. The thin film solar cell preparation method employs the NaF solution to perform processing of the metal prefabricated layer to obviously improve the open-circuit voltage of the thin film solar cell and obviously improve the device efficiency. Besides, the cost is low to facilitate commercialization promotion and application.

Description

technical field [0001] The invention relates to the technical field of solar cells, in particular to a method for preparing thin-film solar cells. Background technique [0002] Solar photovoltaic power generation has an important role and potential in solving energy and environmental problems. Compared with the silicon-based solar cells currently occupying the mainstream of the market, compound semiconductor thin-film solar cells have great advantages in commercial applications due to their excellent power generation performance, low material and energy consumption and other advantages. Compound semiconductor thin-film batteries represented by copper indium gallium selenide (CIGS) and cadmium telluride (CdTe) contain rare metals and toxic elements, which limits their commercial application. Copper Zinc Tin Sulfur Selenium (CZT(S x Se 1-x ))(x=0~1) Thin-film solar cells are a new generation of compound semiconductor thin-film solar cells due to their advantages such as abu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/18H01L31/0224
CPCH01L31/022441H01L31/186Y02E10/50Y02P70/50
Inventor 张毅王东潇姜振武陈江涛高守帅吴建宇武莉敖建平孙云
Owner NANKAI UNIV
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