A new kind of superimposing morphology for enhancing the light scattering in thin film silicon solar cells： Combining random and periodic structure  

作　　者：Huang Zhen-Hua 

机构地区：[1]Institute of Photo-electronics Thin Film Devices and Technique of Nankai University, Tianjin 300071, China [2]Key Laboratory of Photo-electronics Thin Film Devices and Technique of Tianjin, Tianjin 300071, China [3]Key Laboratory of Photo-electronic Information Science and Technology of Ministry of Education (Nankai University), Tianjin 300071, China

出　　处：《Chinese Physics B》2014年第8期350-356,共7页中国物理B（英文版）

基　　金：Project supported by the National Basic Research Program of China （Grant Nos. 2011CBA00705, 2011CBA00706, and 2011CBA00707）, the National Natural Science Foundation of China （Grant No. 61377031）, the Natural Science Foundation of Tianjin, China （Grant No. 12JCQNJC01000）, the Specialized Research Fund for the Doctoral Program of Higher Education, China （Grant No. 20120031120044）, and the Fundamental Research Funds for the Central Universities, China （Grant No. 65012371）.

摘　　要：In this article, a new type of superimposing morphology comprised of a periodic nanostructure and a random structure is proposed for the first time to enhance the light scattering in silicon-based thin film solar cells. According to the framework of the Reyleigh-Sommerfeld diffraction algorithm and the experimental results of random morphologies, we analyze the light-scattering properties of four superimposing morphologies and compare them with the individual morphologies in detail. The results indicate that the superimposing morphology can offer a better light trapping capacity, owing to the coexistence of the random scattering mechanism and the periodic scattering mechanism. Its scattering property will be dominated by the individual nanostructures whose geometrical features play the leading role.In this article, a new type of superimposing morphology comprised of a periodic nanostructure and a random structure is proposed for the first time to enhance the light scattering in silicon-based thin film solar cells. According to the framework of the Reyleigh-Sommerfeld diffraction algorithm and the experimental results of random morphologies, we analyze the light-scattering properties of four superimposing morphologies and compare them with the individual morphologies in detail. The results indicate that the superimposing morphology can offer a better light trapping capacity, owing to the coexistence of the random scattering mechanism and the periodic scattering mechanism. Its scattering property will be dominated by the individual nanostructures whose geometrical features play the leading role.

关 键 词：light scattering superimposing morphology RANDOM PERIODIC 

分 类 号：TM914.42[电气工程—电力电子与电力传动] TB34[一般工业技术—材料科学与工程]