高技术通讯2017，Vol.27Issue(1)：88-94,7.DOI:10.3772/j.issn.1002-0470.2017.01.011
聚光背结背接触太阳电池发射区半宽度的优化研究
Optimization of the emitter half width of concentrator back junction back contact solar cells
摘要
Abstract
The electrical properties of N-type interdigitated back contact (IBC) mono-crystalline silicon solar cells used in medium and low concentrating photovoltaics (CPV) systems were studied by using the TCAD semiconductor device simulation software.The influences of the emitter half width on concentrator IBC solar cells'' short-circuit current density, open-circuit voltage, filling factor and conversion efficiency were analyzed comprehensively and systematically under different concentration ratioes.The simulation results show that the concentrator IBC solar cells'' electrical properties are significantly affected by the emitter half width of unit solar cells and the concentration ratio.Under the variation of the concentration ratio, there is an optimal emitter half width to make concentrator IBC solar cells'' conversion efficiency reach maximum.With the increasing of the concentration ratio, the optimal emitter half width decreases.Although the concentrator IBC solar cells'' conversion efficiency can be improved by the concentration ratio''s increasing, but the optimal emitter half width and its range decrease simultaneously,which increases the preparation difficulty of concentrator IBC solar cells.关键词
背接触/太阳电池/聚光比/发射区半宽度/转换效率/优化Key words
back contact/solar cell/concentration ratio/emitter half width/conversion efficiency/optimize引用本文复制引用
周涛,陆晓东,吴元庆,李媛..聚光背结背接触太阳电池发射区半宽度的优化研究[J].高技术通讯,2017,27(1):88-94,7.基金项目
国家自然科学基金(11304020)资助项目. （11304020）
