光谱学与光谱分析, 2015, 35 (2): 325, 网络出版: 2015-02-15
三光子量子剪裁系统后置提高太阳能电池效率
Three Photons Quantum-Cutting System on the Rear Surface of Cells to Improve the Efficiencies of Solar Cells
摘要
稀土离子材料量子剪裁的研究能有效的提高基质发光材料的发光效率, 近年来量子剪裁也不断的在太阳能电池领域取得比较重要的位置。利用稀土离子掺杂材料能有效的获得三光子量子剪裁能拓展太阳光谱的响应范围, 同时在太阳能电池中产生多个电子空穴对, 电子空穴对多元化有效的减少能量损失以及太阳光谱利用范围的拓宽有效提高了太阳能电池的效率。根据量子剪裁的理论设置相应的具有下转换系统太阳能电池的物理模型及等效电路图, 根据太阳能电池效率计算的细致平衡原理求得其最大的极限效率。把稀土离子三光子量子剪裁应用于实际太阳能电池的应用价值进行粗略的估算, 三光子量子剪裁系统后置太阳能电池时可以得到最大效率为58.58%, 与Trupke双光子下转换模型相比效率有很大的提高。三光子系统后置太阳能电池理论模型的设置比较好的证明了稀土材料三光子量子剪裁对于推进太阳能电池课题的发展具有重要意义。
Abstract
The authors present a solar cell model with a three photons quantum-cutting system on the rear surface, then the method of calculation of limiting efficiencies was used to get the maximum efficiency 58.58% at the band gap Eg=0.931 5 eV, and in contrast with two-photons quantum-cutting system, it is greatly improved. The result can prove that the three-photons quantum-cutting has a great sense to improve the efficiencies of solar cells. It is the exciting development for us to find out the useful luminescence materials to get the high efficiency.
姚文婷, 陈晓波, 程欢利, 周固, 邓志威, 李永良, 严大东, 彭芳麟. 三光子量子剪裁系统后置提高太阳能电池效率[J]. 光谱学与光谱分析, 2015, 35(2): 325. YAO Wen-ting, CHEN Xiao-bo, CHENG Huan-li, ZHOU Gu, DENG Zhi-wei, LI Yong-liang, YAN Da-dong, PENG Fang-lin. Three Photons Quantum-Cutting System on the Rear Surface of Cells to Improve the Efficiencies of Solar Cells[J]. Spectroscopy and Spectral Analysis, 2015, 35(2): 325.