Transparent sculptured titania films for enhanced light absorption in thin-film Si solar cells

被引：5
作者：
Hung, Kai-Hsiang [1 ,2 ]
Chiou, Guan-Di [3 ]
Wong, Ming-Show [3 ]
Wang, Yu-Chih [1 ,2 ]
Chung, I-Shan [4 ,5 ]
机构：
[1] Ind Technol Res Inst, Green Energy Lab, Hsinchu 31040, Taiwan
[2] Ind Technol Res Inst, Environm Res Lab, Hsinchu 31040, Taiwan
[3] Natl Dong Hwa Univ, Dept Mat Sci & Engn, Hualien, Taiwan
[4] Ind Technol Res Inst, Elect Lab, Hsinchu 31040, Taiwan
[5] Ind Technol Res Inst, Optoelect Res Lab, Hsinchu 31040, Taiwan
来源：
THIN SOLID FILMS | 2011年 / 520卷 / 05期
关键词：
Titania (TiO(2)); Nanostructure; Light scattering; Glancing angle deposition (GLAD); Solar cells; GLANCING ANGLE DEPOSITION; CHEMICAL-VAPOR-DEPOSITION; OPTICAL-PROPERTIES; TIO2; EFFICIENCY;
D O I：
10.1016/j.tsf.2011.10.038
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This study presents a description of the enhancement of light absorption in thin-film silicon (Si) solar cells by using sculptured titania (TiO(2)) films. We used an electron-beam evaporation system with a glancing angle deposition (GLAD) method to deposit porous TiO(2) films on fluorine-doped SnO(2) (FTO) substrates. The GLAD TiO(2)/FTO films were used as conductive electrodes in hydrogenated microcrystalline silicon (mu c-Si:H) solar cells. Transmission electron microscopy revealed that the GLAD TiO(2) films are composed of sculptured nano-pillars on an FTO surface, and this nanostructure provides a synergistic route for light scattering enhancement. The GLAD TiO(2)/FTO exhibited a 68% improvement of optical haze (at lambda=600 nm). The mu c-Si:H solar cells consisting of the GLAD-nanostructured TiO(2) resulted in a 5% improvement of short-circuit current (J(sc)) and yielded a cell efficiency of 6.6%. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：1385 / 1389
页数：5
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