Computational Investigation of InxGa1−xN/InN Quantum-Dot Intermediate-Band Solar Cell
DENG Qing-Wen1**, WANG Xiao-Liang1,2,3, YANG Cui-Bai1,2, XIAO Hong-Ling1,2, WANG Cui-Mei1,2, YIN Hai-Bo1,2, HOU Qi-Feng1, BI Yang1, LI Jin-Min1,3, WANG Zhan-Guo2, HOU Xun3
1Materials Science Center, Institute of Semiconductors, Chinese Academy of Sciences, PO Box 912, Beijing 100083 2Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences, PO Box 912, Beijing 100083 3ISCAS-XJTU Joint Laboratory of Functional Materials and Devices for Informatics, PO Box 912, Beijing 100083
Computational Investigation of InxGa1−xN/InN Quantum-Dot Intermediate-Band Solar Cell
DENG Qing-Wen1**, WANG Xiao-Liang1,2,3, YANG Cui-Bai1,2, XIAO Hong-Ling1,2, WANG Cui-Mei1,2, YIN Hai-Bo1,2, HOU Qi-Feng1, BI Yang1, LI Jin-Min1,3, WANG Zhan-Guo2, HOU Xun3
1Materials Science Center, Institute of Semiconductors, Chinese Academy of Sciences, PO Box 912, Beijing 100083 2Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences, PO Box 912, Beijing 100083 3ISCAS-XJTU Joint Laboratory of Functional Materials and Devices for Informatics, PO Box 912, Beijing 100083
摘要An InxGa1−xN/InN quantum-dot intermediate-band solar cell is calculated by means of solving the Schrödinger equation according to the Kronig–Penney model. Based on particular assumptions, the power conversion efficiency is worked out. The results reveal that the InxGa1−xN/InN quantum-dot intermediate-band solar cell manifests much larger power conversion efficiency than that of p-n junction solar cells, and the power conversion efficiency strongly depends on the size of the quantum dot and the interdot distance.
Abstract：An InxGa1−xN/InN quantum-dot intermediate-band solar cell is calculated by means of solving the Schrödinger equation according to the Kronig–Penney model. Based on particular assumptions, the power conversion efficiency is worked out. The results reveal that the InxGa1−xN/InN quantum-dot intermediate-band solar cell manifests much larger power conversion efficiency than that of p-n junction solar cells, and the power conversion efficiency strongly depends on the size of the quantum dot and the interdot distance.
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2011, Vol. 28 
