Verfahren zur Herstellung einer Fotovoltaischen Zelle und Fotovoltaische Zelle

Details

Veröffentlichungs-Nr.

EP4750273

Anmeldetag

5. Mai 2025

Veröffentlichung

27. Mai 2026

Rechtsraum

EP

IPC

H10F71/00, H10F77/30

Abstract

The present disclosure relates to a photovoltaic cell preparation method, and a photovoltaic cell. The method includes: preparing a substrate including a first surface and a second surface opposite to each other, wherein the first surface is a textured structure; placing the substrate into an ALD deposition chamber; sequentially depositing an aluminum-silicon layer and an alumina layer on the first surface; placing the substrate having the aluminum-silicon layer and the alumina layer into a PECVD deposition chamber; depositing a silicon nitride layer on the alumina layer; feeding ammonia gas into the PECVD deposition chamber, and turning on a radio frequency power supply to ionize hydrogen ions from the ammonia gas; and diffusing the hydrogen ions into the aluminum-silicon layer. The aluminum-silicon layer forms an aluminum-silicon bond on the first surface of the substrate, hydrogen ions are diffused to the aluminum-silicon layer to form an aluminum-hydrogen bond. When ultraviolet light is irradiated to the surface of the photovoltaic cell, the aluminum-hydrogen bond can reduce the possibility of damage caused by ultraviolet light to the silicon-hydrogen bond on the surface of the silicon layer, so that the chemical passivation loss of the photovoltaic cell is reduced, thereby improving the conversion efficiency.

Anmelder

Firmen

Jinko Solar (Shangrao) Co., Ltd
Zhejiang Jinko Solar Co., Ltd.

Land

🇨🇳 China

Fachgebiete