双面太阳电池的结构、工作原理和发展趋势  

Structure,Working Principle and Development Trend of the Bifacial Solar Cell

作　　者：郭丹 田汉民 吕俊 戎小莹 张天 赵昆越 

机构地区：[1]河北工业大学电子信息工程学院,天津300401 [2]天津市电子材料与器件重点实验室,天津300401 [3]乐叶光伏科技有限公司,西安710100

出　　处：《半导体技术》2018年第2期97-105,141,共10页Semiconductor Technology

基　　金：中国博士后科学基金资助项目(2015M581282);河北省留学人员择优资助项目(C2015003040)

摘　　要：双面太阳电池因具有更高的等效转换效率、可降低25%以上的系统成本和更广泛的应用等优点引起了人们的广泛关注。介绍了双面太阳电池的工作原理,重点总结了钝化发射极及背表面完全扩散（PERT）双面太阳电池、钝化发射极及背表面接触（PERC）双面太阳电池、异质结型双面太阳电池等硅基双面太阳电池的结构及发展现状,介绍了铜铟镓硒（CIGS）双面太阳电池、CdTe薄膜双面太阳电池及钙钛矿双面太阳电池等的新型结构及研究进展。详细分析了双面太阳电池的发展优势与现阶段出现的主要问题。最后说明了双面太阳电池今后的努力方向,为更好地提高双面太阳电池的效率,背部结构的设计以及制备工艺的优化和创新是未来双面电池发展的趋势。The bifacial solar cell has attracted wide attention, because it has higher equivalent con- version efficiency, can reduce more than 25% system costs and has wider applications. The working principle of the bifacial solar cell is introduced. The structure and development status of silicon-based bi-facial solar ceils are summarized, such as the passivated emitter and rear totally-diffused （PERT） bifa- cial solar cell, the passivated emitter and rear contact （PERC） bifacial solar cell and the heterojunction bifacial solar cell. And the new structure and research progress of the CuInxGal_xS% （CIGS） bifacial so- lar cell, CdTe thin film bifacial solar cell and perovskite bifacial solar cell are described. The develop- ment advantages and main problems at present of the bifacial solar cell are analyzed in detail. At last, the direction of the future efforts of the bifacial solar cell is explained. To improve the efficiency of bifa- cial solar cells, the design of the back structure, and the optimization and innovation of the preparation process are the trend of the future development of bifacial solar cell.

关 键 词：硅基太阳电池 钝化发射极及背表面接触(PERC)双面太阳电池 CdTe薄膜双面太阳电池 光电转换效率 异质结 

分 类 号：TM914.4[电气工程—电力电子与电力传动]