Design of Self-Organized Spinodal Nano-Decomposition for High-Efficiency Photovoltaic Solar Cells in II-VI Compound Semiconductors Alloy

被引：4
|
作者：
Oshitani, Masamune [1 ]
Sato, Kazuhiro [1 ]
Katayama-Yoshida, Hiroshi [1 ]
机构：
[1] Osaka Univ, Grad Sch Engn Sci, Osaka 5608351, Japan
来源：
APPLIED PHYSICS EXPRESS | 2011年 / 4卷 / 02期
关键词：
CURIE-TEMPERATURE;
D O I：
10.1143/APEX.4.022302
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Based on multi-scale simulations by ab initio electronic structure calculation and Monte Carlo simulation (MCS) of two-dimensional crystal growth, we have designed a self-organized quasi-one-dimensional nano-structure (Konbu-Phase, where "Konbu" means seaweeds in Japanese) created by two-dimensional spinodal nano-decomposition for high-efficiency photovoltaic solar cells (PVSCs) in (Zn(1-x)Cr(x))O, Cd(S(1-x)Te(x)), and Cd(Se(1-x)Te(x)). The Konbu-Phase enhances the nano-scale electron-hole separation in PVSCs due to their Type II band alignment. The Konbu-Phase also increases the efficiency of PVSCs by multi-exciton formation using the inverse Auger effect in the quasi-one-dimensional nanostructures. (C) 2011 The Japan Society of Applied Physics
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