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:
Apr. 21, 2025
Filed:
Jun. 22, 2023
Jinko Green Energy (Shanghai) Management Co., Ltd., Shanghai, CN;
Zhejiang Jinko Solar Co., Ltd, Zhejiang, CN;
Jie Yang, Shanghai, CN;
Wenqi Li, Shanghai, CN;
Xueting Yuan, Shanghai, CN;
Xinyu Zhang, Shanghai, CN;
Hao Jin, Shanghai, CN;
JINKO GREEN ENERGY (SHANGHAI) MANAGEMENT CO., LTD, Shanghai, CN;
ZHEJIANG JINKO SOLAR CO., LTD, Zhejiang, CN;
Abstract
Provided is a solar cell. The solar cell may include a semiconductor layer and a passivation film stack provided on a back surface of the semiconductor layer. The passivation film stack may include a first passivation layer provided on the back surface of the semiconductor layer and including a silicon-rich layer with a silicon atom concentration ranging from 5×10/cmto 2.5×10/cm; a second passivation layer provided on a surface of the first passivation layer and including an oxygen-rich and nitrogen-rich layer; and a third passivation layer provided on a surface of the second passivation layer and including at least one silicon nitride film with a gradient-varied refractive index. A first refractive index of the first passivation layer may be greater than a second refractive index of the second passivation layer and smaller than a third refractive index of the third passivation layer.