Improved power conversion efficiency for dye-sensitized solar cells using a subwavelength-structured antireflective coating

被引：10

作者：

Chou, Chun-Chi ^{[1
]}

Tsao, Kuan-Yi ^{[1
]}

Wu, Chih-Chung ^{[1
]}

Yang, Hongta ^{[1
]}

Chen, Chih-Ming ^{[1
]}

机构：

[1] Natl Chung Hsing Univ, Dept Chem Engn, Taichung 402, Taiwan

来源：

APPLIED SURFACE SCIENCE | 2015年 / 328卷

关键词：

Antireflection; Subwave length structure; Power conversion efficiency; LIGHT; SURFACES; SPHERES; ARRAY; GLASS;

D O I：

10.1016/j.apsusc.2014.12.021

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Large-scale, subwavelength-structured nanodome arrays were successfully fabricated using simple, scalable bottom-up colloidal (nanosphere) lithography on a glass substrate as an efficient antireflective photoanode for dye-sensitized solar cells (DSSCs). A self-assembled monolayer of close-packed colloidal crystals (silica) was used as a structural template to pattern the two-dimensional subwavelengthstructured nanodome arrays, which function as an efficient antireflective coating due to the graded refractive index across the interface between the air and specific nanodome array structure. The light harvesting for a DSSC with a subwavelength-structured antireflective coating was enhanced due to the improved broadband antireflectivity. Adjusting the nanodome size yielded a short-circuit current density (J(sc)) of 15.88 mA/cm(2) with a power conversion efficiency (PCE) of 8.82%, which were both better than the reference cell without a subwavelength-structured antireflective coating (J(sc) = 15.26 mA/cm(2) and PCE = 8.45%). (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：198 / 204

页数：7

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