物理学报2011，Vol.60Issue(8)：801-806,6.
非晶硅光伏电池表面高效光陷阱结构设计
Design of a highly efficient light-trapping structure for amorphous silicon solar cell
摘要
Abstract
A highly efficient light-trapping structure consisting of a diffractive grating,a MgF2 film,a ZnS film and Ag reflector,is used for a-Si：H solar cell.Using the rigorous coupled wave theory,the weighted absorptance photon number （ξAM1.5） of a 1μm thick a-Si：H solar cell is calculated in a wavelength range from 400 to 1000 nm for the AM1.5 solar spectrum at 25℃.It is used to design the optimal parameters of the light-trapping structure.Results indicate that ξAM1.5 of the solar cell can reach 74.3%,if the period,the depth and the duty cycle of the diffractive grating,and the height of the MgF2 film and the ZnS film are 800 nm,160 nm,0.6125,90 nm and 55 nm,respectively.If a ZnS/Ag film is fabricated on the rear surface of the solar cell,a larger ξAM1.5 （76.95%） can be obtained.It is demonstrated that the trapping structure is useful for elevating the efficiency of the solar cell.关键词
光陷阱结构/衍射光栅/减反射膜/非晶硅光伏电池Key words
light-trapping structure/diffractive grating/antireflective film/amorphous silicon solar cells分类
信息技术与安全科学引用本文复制引用
周骏,孙永堂,孙铁囤,刘晓,宋伟杰..非晶硅光伏电池表面高效光陷阱结构设计[J].物理学报,2011,60(8):801-806,6.基金项目
国家自然科学基金 （）
中国科学院国际合作计划 （）
宁波市国际科技合作计划 （）
宁波大学王宽成幸福基金 （）
常州亿晶光电科技有限公司资助的课题 （）
