Solar cell and photovoltaic module

US11735675B2 · kind B2 · utility

Assignees

• ZHEJIANG JINKO SOLAR CO., LTD. · CN
• JINKO SOLAR CO., LTD. · CN

Inventors

• Jingsheng JIN · Zhejiang, CN
• Xinyu Zhang · Changzhou City, CN
• Nannan YANG · Zhejiang, CN
• Bike ZHANG · Zhejiang, CN
• Lin'an Zhang · Zhejiang, CN
• Guangming LIAO · Zhejiang, CN

Key dates

• Filing date: Feb 7, 2022
• Grant date: Aug 22, 2023
• Expiry date: Feb 7, 2042

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/547

Abstract

A solar cell and a photovoltaic module are disclosed, including: a substrate; a tunneling dielectric layer and a doped conductive layer disposed on the substrate, the tunneling dielectric layer being disposed between the doped conductive layer and a surface of the substrate, the doped conductive layer having a N-type or P-type doping element and having a plurality of first heavily doped regions spaced apart from each other and extending in a first direction, a doping concentration in the first heavily doped regions being greater than that in other regions of the doped conductive layer; a passivation layer disposed on a surface of the doped conductive layer facing away from the substrate; and a plurality of electrodes spaced apart from each other, extending in a second direction and penetrating the passivation layer to contact the doped conductive layer, at least two first heavily doped regions contacting a same electrode.