Investigation on the temperature-dependence of absorption properties of solar cells with micro-structured surfaces  

作　　者：YANG LiLi,XUAN YiMin ,HAN YuGe&TAN JunJie School of Power Engineering,Nanjing University of Science&Technology,Nanjing 210094,China 

出　　处：《Science China(Technological Sciences)》2010年第8期2304-2310,共7页中国科学（技术科学英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant No.50936002)

摘　　要：The temperature of a solar cell will increase when it is exposed to the sunlight,which results in variations of optical parameters and thermal expansion coefficient of the cell,thus affecting its spectral absorption feature.This paper is aimed to investigate the effects of temperature on the absorption property of solar cells with micro-structured surfaces.By taking hemispherical, cylindrical and spherical surfaces as models,numerical computation is conducted to obtain spectral distribution of absorptance of such surfaces with different structural parameters by means of the finite difference time domain(FDTD)method.Furthermore,the effects of material properties and structural period on the absorption property are also investigated.The temperature of a solar cell will increase when it is exposed to the sunlight,which results in variations of optical parameters and thermal expansion coefficient of the cell,thus affecting its spectral absorption feature.This paper is aimed to investigate the effects of temperature on the absorption property of solar cells with micro-structured surfaces.By taking hemispherical, cylindrical and spherical surfaces as models,numerical computation is conducted to obtain spectral distribution of absorptance of such surfaces with different structural parameters by means of the finite difference time domain(FDTD)method.Furthermore,the effects of material properties and structural period on the absorption property are also investigated.

关 键 词：temperature DIELECTRIC function thermal EXPANSION COEFFICIENT ABSORPTION PROPERTY 

分 类 号：TM914.4[电气工程—电力电子与电力传动]