基于微腔陷光的超薄晶硅电池结构设计  

Design of Ultra-thin Crystalline Silicon Cell Structure Based on Microcavity Light Trapping

作　　者：高洁 陆晓东 王欣欣 王洋 李禹阔 张宇峰 GAO Jie;LU Xiao-dong;WANG Xin-xin;WANG Yang;LI Yu-kuo;ZHANG Yu-feng(College of New Energy,Bohai University,Jinzhou 121000,China)

机构地区：[1]渤海大学新能源学院,锦州121000

出　　处：《人工晶体学报》2018年第8期1670-1674,共5页Journal of Synthetic Crystals

基　　金：国家重点基础研究发展计划("973"计划)(2010CB933804);国家自然科学基金(61575029;11304020);辽宁省自然科学基金(201602008)

摘　　要：基于电池前后表面电极构成的金属微腔和电池前表面微腔的双微腔结构设计,并借助微透镜控制入射光场性质,设计了一种可用于超薄晶硅电池的陷光结构。计算表明:这种陷光结构可有效提高不同厚度的超薄晶硅电池的吸光效率;电池有源层越薄,该陷光结构增强光吸收的效果越明显;在晶硅电池的有源层厚度为3$m时,电池效率达16.3193%。A kind of light trapping structure applied to ultra-thin crystalline silicon solar cells based on the design of metal microcavity consisiting of the cell's electrodes on the front and the back surfaces is designed,which relys on the properties of microlenses controlling the incident light field.The caculation shows that the light trapping structure can improve the light absorption efficiency of the ultra-thin crystalline silicon solar cells effectively with different thickness;when the active layer of the cell becomes thinner,the effect of strenthening light absorption becomes more evident with this light trapping structure;when the active layer thickness of crystalline solar cells is 3μm,the efficiency of the cell reaches 16.3193%.

关 键 词：陷光结构 超薄晶硅电池 输出参数 有限差分法 

分 类 号：TK514[动力工程及工程热物理—热能工程]