Enhanced conversion efficiency of Yb^(2+)–Yb^(3+)-codoped glass as spectral converter for photovoltaic application  

作　　者：Lu Sun Wenbin Xu Chun Jiang 

机构地区：[1]State Key Laboratory of Advanced Optical Communication System and Networks, Shanghai Jiao Tong University

出　　处：《Chinese Science Bulletin》2014年第5期480-483,共4页

基　　金：supported by the Cultivation Fundof the Key Scientific and Technical Innovation Project,Ministry of Education of China(708038)

摘　　要：We propose a kind of Yb2?–Yb3?-codoped glass,which is used as spectral converter layer to adjust AM1.5 solar spectrum for a better match with silicon bandgap.The energy-level rate equations and power transmission equations are established to analyze the down-conversional effect of the codoped glass on solar spectrum.The numerical results show that with proper doping concentration and thickness the glass layer may improve conversion efficiency by about 12%.Moreover,we also apply the modified spectrum as excitation source of solar cell in a simulation platform,and reveal that there is about 15%improvement in practical cells.We propose a kind of Yb2＋-Yb3＋-codoped glass, which is used as spectral converter layer to adjust AM1.5 solar spectrum for a better match with silicon bandgap. The energy-level rate equations and power transmission equations are established to analyze the down-conversional effect of the codoped glass on solar spectrum. The numerical results show that with proper doping concentration and thickness the glass layer may improve conversion efficiency by about 12 %. Moreover, we also apply the modified spectrum as excitation source of solar cell in a simulation platform, and reveal that there is about 15 % improvement in practical cells.

关 键 词：掺杂玻璃 转换效率 转换器 频谱 应用 共掺 光伏 镱 

分 类 号：TM914.4[电气工程—电力电子与电力传动]