Spectral Selectivity of CdTe Cells with Substrate Configuration for Photovoltaic/Thermal Applications  

作　　者：CHEN Ken HU Kongfu ZHAO Bin CHEN Tao HAO Yong PEI Gang 

机构地区：[1]Department of Thermal Science and Energy Engineering,University of Science and Technology of China,Hefei,230027,China [2]Key Laboratory of Solar Thermal Conversion of Anhui Province,Hefei,230027,China [3]Hefei National Laboratory for Physical Sciences at Microscale,Department of Materials Science and Engineering,University of Science and Technology of China,Hefei,230026,China [4]Institute of Engineering Thermophysics,Chinese Academy of Sciences,Beijing,100190,China [5]University of Chinese Academy of Sciences,Beijing,100049,China

出　　处：《Journal of Thermal Science》2024年第4期1542-1553,共12页热科学学报（英文版）

基　　金：supported by the National Natural Science Foundation of China(NSFC 52130601 and52106276);the Fundamental Research Funds for the Central Universities(WK5290000003);the support of the Research Center for Multi-energy complementation and conversion。

摘　　要：Existing photovoltaic cells with high infrared emissivity generate huge radiative heat loss in photovoltaic/thermal applications and degrade the photothermal performance.The purpose of this work is to evaluate the full spectral absorptivity of CdTe cells to find a spectrally selective photovoltaic cell for photovoltaic/thermal applications.To this end,the solar absorptivity and mid-infrared thermal emissivity of CdTe cells were tested by ellipsometry,UV-Vis-NIR spectrophotometer,and Fourier transform infrared spectrometer.The experimental results show that the AM 1.5 solar spectrum weighted absorptivity of the substrate configuration CdTe cell reaches 0.91,and the mid-infrared emissivity is only 0.29,while the superstrate configuration cell emissivity is as high as 0.9.Further research shows that substrate configuration with a transparent conductive layer on top can be flexibly grown on metal foils and has spectral selectivity with high solar absorptivity and low mid-infrared emissivity should be considered in the future for photovoltaic/thermal applications.

关 键 词：photovoltaic/thermal spectral selectivity substrate configuration CdTe cell ITO 

分 类 号：TM914.4[电气工程—电力电子与电力传动]