Effects of ZnO-nanostructure antireflection coatings on sulfurization-free Cu2ZnSnS4 absorber deposited by single-step co-sputtering process

被引：22
作者：
Jheng, Bao-Tang [1 ]
Liu, Po-Tsun [2 ,3 ]
Wang, Min-Chuan [4 ]
Wu, Meng-Chyi [1 ]
机构：
[1] Natl Chiao Tung Univ, Dept Elect Engn, Hsinchu 300, Taiwan
[2] Natl Chiao Tung Univ, Dept Photon, Hsinchu 300, Taiwan
[3] Natl Chiao Tung Univ, Display Inst, Hsinchu 300, Taiwan
[4] Inst Nucl Energy Res, Div Phys, Tao Yuan, Taiwan
来源：
APPLIED PHYSICS LETTERS | 2013年 / 103卷 / 05期
关键词：
SOLAR-CELLS; THIN-FILMS; GROWTH; LAYERS; FABRICATION;
D O I：
10.1063/1.4817253
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
ZnO nanostructures as anti-reflective coatings were synthesized by using hydrothermal technique for a sulfurization-free Cu2ZnSnS4 absorber prepared by co-sputtering deposition. By controlling the morphology of solution-grown ZnO nanostructures, the average reflectance of the Cu2ZnSnS4 solar cell with branched ZnO nanorods decreased from 7.6% to 1.12%, and the energy conversion efficiency promoted by 10.4% from the initial value of 4.8% to 5.3%. The efficiency improvement was well studied with the effects of the gradually increased refractive index between the air and the top electrode of Cu2ZnSnS4 solar device, due to the presence of the ZnO nanostructure. (C) 2013 AIP Publishing LLC.
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页数：4
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