太阳能Issue(1)：70-78,9.DOI:10.19911/j.1003-0417.tyn20240104.01
TOPCon太阳电池LPCVD技术路线下的EL黑边、黑角改善研究
RESEARCH ON EL BLACK EDGE AND CORNER IMPROVING OF TOPCon SOLAR CELLS WITH LPCVD TECHNOLOGY ROUTE
周塘华 1谢婉丽 1易辉 1谌业斌 1邹佳朴 1孙浩月2
作者信息
- 1. 湖南红太阳新能源科技有限公司,长沙 410000
- 2. 江苏超晶新能源科技有限公司,盐城 224000
- 折叠
摘要
Abstract
EL black edges and corners are the key and difficult issues encountered by TOPCon solar cells when using LPCVD technology.They not only lead to a decrease in photoelectric conversion efficiency and yield,but also result in uneven brightness of EL images inside the solar cell.In order to improve the EL black edge and corner problems,this paper analyzes and studies the EL black edge and black corner problems when TOPCon solar cells adopt the LPCVD technology route.The research results indicate that the EL black edge and black corner problems on the TOPCon solar cell production line are mainly caused by the uneven superposition of the gas field of the first boat in the LPCVD equipment and the natural oxide layer of alkali throwing.By optimizing the LPCVD automated boat release program and adjusting the oxygen soaking time,the EL black edge,black corner,EL quartz boat print,and EL oxidation dirt phenomenon have all been significantly improved.The improvement of EL black edge and black corner is 0.45%,and the proportion of high-temperature EL defects has been improved by 3.04%.关键词
TOPCon太阳电池/LPCVD/EL黑边、黑角/EL石英舟印Key words
TOPCon solar cells/LPCVD/EL black edge and corner/quartz boat groove contaminated EL problem分类
信息技术与安全科学引用本文复制引用
周塘华,谢婉丽,易辉,谌业斌,邹佳朴,孙浩月..TOPCon太阳电池LPCVD技术路线下的EL黑边、黑角改善研究[J].太阳能,2025,(1):70-78,9.
