太阳能硅电池表面特性的激光散斑研究  

Surface Properties of Silicon Solar Cell Using Laser Speckle Methods

作　　者：李新忠[1,2] 台玉萍[3] 聂兆刚[4] 尹更新[1,2] 张利平[1,2] 

机构地区：[1]河南科技大学物理与工程学院,河南洛阳471003 [2]洛阳市光电功能材料重点实验室,河南洛阳471003 [3]河南科技大学化工与制药学院,河南洛阳471003 [4]南洋理工大学数学物理学院,新加坡637371

出　　处：《河南科技大学学报（自然科学版）》2012年第4期28-31,5-6,共4页Journal of Henan University of Science And Technology:Natural Science

基　　金：河南省国际科技合作计划项目(104300510065);河南科技大学自然科学领域科研创新能力培育基金项目(2009CZ0009)

摘　　要：利用激光散斑的方法研究了太阳能硅电池表面的光吸收特性。通过解析被测试物体表面的散斑信息,利用激光散斑对比度和散斑图信息小波熵的方法,对太阳能硅电池的表面形貌进行了研究,讨论了硅电池表面形貌与太阳能电池光转换效率间的关系。结合原子力显微镜和分光光度计的对比测试,研究结果表明:散斑图对比度值和信息小波熵值越大,太阳能硅电池的光转换效率越高。The light absorption properties of silicon solar cell was studied by using laser speckle methods. Firstly,laser speckle patterns generated from the sample surface were recorded by a CCD camera.And then,the surface profiles of the solar cells were analyzed by using laser speckle contrast and wavelet entropy methods. Moreover,the relation between surface profiles and the light conversion efficiency was discussed.The results obtained by laser speckle methods were agreement with those obtained by atomic force microscope and spectrophotometer analysis.Results show that the light conversion efficiency of solar cell is directly proportional to the values of speckle contrast and wavelet entropy.

关 键 词：激光散斑 太阳能硅电池 转换效率 

分 类 号：TM914.4[电气工程—电力电子与电力传动]