Solar cell and production method thereof, photovoltaic module

US12148847B2 · kind B2 · utility

Assignees

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

Inventors

• Mengchao Shen · 盐官镇, CN
• Lipeng Wang · Shanghai, CN
• Zhongxiang Yang · Zhejiang, CN
• Zhao Wang · Hubei, CN
• Jie Yang · Foster City, US
• Xinyu Zhang · Changzhou City, CN

Key dates

• Filing date: Jun 23, 2022
• Grant date: Nov 19, 2024
• Expiry date: Jul 2, 2042

Classification

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

Abstract

Embodiments of the present disclosure relates to the field of solar cells, and in particular to a solar cell and a production method thereof, and a photovoltaic module. The solar cell includes: a N-type substrate; a P-type emitter formed on a first surface of the N-type substrate and including a first portion and a second portion, a top surface of the first portion includes a first pyramid structure, and at least a part of at least one inclined surface of the first pyramid structure is concave or convex relative to a center of the first pyramid structure, a top surface of the second portion includes a second pyramid structure, and inclined surfaces of the second pyramid structure are planar; and a tunnel layer and a doped conductive layer located on a second surface of the N-type substrate. The present disclosure can improve the photoelectric conversion performance of solar cells.