The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 06, 2026
Filed:
Dec. 30, 2022
Tongwei Solar (Chengdu) Co., Ltd., Chengdu, CN;
Xiajie Meng, Meishan, CN;
Guoqiang Xing, Meishan, CN;
TONGWEI SOLAR (CHENGDU) CO., LTD., Chengdu, CN;
Abstract
A preparation method for a solar cell includes: providing a silicon wafer substrate having a first surface and a second surface, which is opposite to the first surface; forming a silicon-containing thin film comprising a doped layer on the first surface of the silicon wafer substrate, wherein the forming method for the doped layer comprises: forming a partially doped layer in an atmosphere in which the flow rate of a dopant gas source is 100-1000 sccm and the flow rate of silane is 1000-4000 sccm, and forming a remaining doped layer in an atmosphere in which the flow rate of the dopant gas source is 1500-3000 sccm and the flow rate of the silane remains unchanged; forming a patterned region; and performing a texturing treatment.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile