Efficiency enhancement in GaAs solar cells using self-assembled microspheres

被引：52

作者：

Chang, Te-Hung ^{[1
]}

Wu, Pei-Hsuan ^{[2
]}

Chen, Sheng-Hui ^{[1
]}

Chan, Chia-Hua ^{[1
]}

Lee, Cheng-Chung ^{[1
]}

Chen, Chii-Chang ^{[1
]}

Su, Yan-Kuin ^{[2
]}

机构：

[1] Natl Cent Univ, Dept Opt & Photon, Chungli 320, Taiwan

[2] Natl Cheng Kung Univ, Inst Electroopt Sci & Engn, Tainan 701, Taiwan

来源：

OPTICS EXPRESS | 2009年 / 17卷 / 08期

关键词：

MODES;

D O I：

10.1364/OE.17.006519

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this study we develop an efficient light harvesting scheme that can enhance the efficiency of GaAs solar cells using self-assembled microspheres. Based on the scattering of the microspheres and the theory of photonic crystals, the path length can be increased. In addition, the self-assembly of microspheres is one of the simplest and the fastest methods with which to build a 2D periodic structure. The experimental results are confirmed by the use of a simulation in which a finite-difference time-domain (FDTD) method is used to analyze the absorption and electric field of the 2D periodic structure. Both the results of the numerical simulations and the experimental results show an increase in the conversion power efficiency of GaAs solar cell of about 25% when 1 mu m microspheres were assembled on the surface of GaAs solar cells. (C) 2009 Optical Society of America

引用

页码：6519 / 6524

页数：6

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