Photovoltaic cell and photovoltaic module

US12278301B2 · kind B2 · utility

Assignees

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

Inventors

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

Key dates

• Filing date: Jun 28, 2022
• Grant date: Apr 15, 2025
• Expiry date: Jun 28, 2042

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P70/50

Abstract

A photovoltaic cell is provided, which includes: a substrate; a tunnel oxide layer and a doping conductive layer sequentially disposed on a first surface of the substrate in a direction away from the substrate, wherein the tunnel oxide layer includes nitrogen and phosphorus; a doping surface field disposed in the substrate, wherein the doping surface field is in contact with a side of the tunnel oxide layer facing the substrate, the doping surface field includes a doping element of a same conductivity type as a doping element in the substrate, and a doping concentration on a side of the doping surface field facing the tunnel oxide layer is greater than a doping concentration on a side of the doping surface field away from the tunnel oxide layer; and a metal electrode electrically connected to the doping conductive layer.