Solar cell

US11189739B1 · kind B1 · utility

Assignees

• Jinko Green Energy (Shanghai) Management Co., LTD. · CN
• ZHEJIANG JINKO SOLAR CO., LTD. · CN

Inventors

• Jingsheng JIN · Zhejiang, CN
• Bike ZHANG · Zhejiang, CN
• Xinyu Zhang · Changzhou City, CN

Key dates

• Filing date: Dec 4, 2020
• Grant date: Nov 30, 2021
• Expiry date: Dec 4, 2040

Classification

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

Abstract

The present disclosure provide a solar cell, including: a substrate, an interface passivation layer covering a rear surface of the substrate, and an electrode disposed at a side of the interface passivation layer facing away from the substrate, the interface passivation layer including a first interface passivation sub-layer corresponding to a portion of the interface passivation layer between adjacent electrodes, and a second interface passivation sub-layer corresponding to a portion of the interface passivation layer where disposed between the substrate and the electrode; a field passivation layer, at least partially disposed between the interface passivation layer and the electrode; and a conductive enhancement layer, at least partially disposed at a side of the first interface passivation sub-layer away from the substrate to enable carriers in the first interface passivation sub-layer to flow to the electrode, where a resistivity of the conductive enhancement layer is smaller than a resistivity of the field passivation layer.