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

Masamune Oshitani; Kazuhiro Sato; Hiroshi Katayama-Yoshida

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

机译：II-VI化合物半导体合金中高效光伏太阳能电池自组织旋节线纳米分解的设计

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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(Si_(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 nano-structures.

机译：基于从头算电子结构计算和二维晶体生长的蒙特卡洛模拟（MCS）进行的多尺度模拟，我们设计了一种自组织的准一维纳米结构（Konbu-Phase，其中“ Konbu”是指通过二维旋节线纳米分解在（Zn_（1-x）Cr_x）O，Cd（Si_（1-x）Te_x）和Cd（ Se_（1-x）Te_x）。 Konbu-Phase由于其II型能带对准而增强了PVSC中的纳米级电子-空穴分离。 Konbu-Phase还通过在准一维纳米结构中使用逆俄歇效应进行多激子形成来提高PVSC的效率。

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《Annales de l'I.H.P》 |2011年第2期|p.022302.1-022302.3|共3页
作者
Masamune Oshitani; Kazuhiro Sato; Hiroshi Katayama-Yoshida;
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Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8351, Japan;

Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8351, Japan;

Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8351, Japan;

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

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