Hu Xiangmin, Kang Ruidan, Zhang Yongyou, Deng Luogen, Zhong Haizheng, Zou Bingsuo, Shi Li-Jie
Opt Express. 2015 Jul 27;23(15):A858-67. doi: 10.1364/OE.23.00A858.
To enhance the performance of luminescent solar concentrator (LSC), there is an increased need to search novel emissive materials with broad absorption and large Stokes shifts. I-III-VI colloidal CuInS2 and CuInSe2 based nanocrystals, which exhibit strong photoluminescence emissions in the visible to near infrared region with large Stokes shifts, are expected to improve performance in luminescent solar concentrator applications. In this work, the performance of CuInS(Se)2 quantum dots in simple planar LSC is evaluated by applying Monte-Carlo ray-trace simulation. A systematic parameters study was conducted to optimize the performance. An optimized photon concentration ratio of 0.34 for CuInS2 nanocrystals and 1.25 for CuInSe2 nanocrystals doping LSC are obtained from the simulation. The results demonstrated that CuInSe2 based nanocrystals are particularly interesting for luminescent solar concentrator applications, especially to combine with low price Si solar cells.
为提高发光太阳能聚光器（LSC）的性能，越来越需要寻找具有宽吸收和大斯托克斯位移的新型发光材料。基于I-III-VI族的胶体CuInS2和CuInSe2纳米晶体在可见光到近红外区域表现出强烈的光致发光发射，且具有大斯托克斯位移，有望提高发光太阳能聚光器应用的性能。在这项工作中，通过应用蒙特卡罗光线追踪模拟来评估CuInS(Se)2量子点在简单平面LSC中的性能。进行了系统的参数研究以优化性能。从模拟中获得了CuInS2纳米晶体掺杂LSC的优化光子浓度比为0.34，CuInSe2纳米晶体掺杂LSC的优化光子浓度比为1.25。结果表明，基于CuInSe2的纳米晶体对于发光太阳能聚光器应用特别有意义，尤其是与低价硅太阳能电池结合使用时。
