Inspired by cicada wings, biomorphic TiO2 with antireflective structures (ARSs) was precisely fabricated using a simple, inexpensive, and highly effective sol-gel process combined with subsequent calcination. It was confirmed that the fabricated biomorphic TiO2 not only effectively inherited the ARS but also exhibited high-performance angle dependent antireflective properties ranging from normal to 45°. Reflectance spectra demonstrated that the reflectivity of the biomorphic TiO2 with ARSs gradually changed from 1.4% to 7.8% with the increasing incidence angle over a large visible wavelength range. This angle dependent antireflective property is attributed to an optimized gradient refractive index between air and TiO2 via ARSs on the surface. Such surfaces with ARSs may have potential application in solar cells.
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Angle dependent antireflection property of TiO2 inspired by cicada wings
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10 October 2016
Research Article|
October 11 2016
Angle dependent antireflection property of TiO2 inspired by cicada wings
Imran Zada;
Imran Zada
State Key Laboratory of Metal Matrix Composites,
Shanghai Jiao Tong University
, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
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Wang Zhang;
Wang Zhang
a)
State Key Laboratory of Metal Matrix Composites,
Shanghai Jiao Tong University
, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
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Yao Li;
Yao Li
State Key Laboratory of Metal Matrix Composites,
Shanghai Jiao Tong University
, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
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Peng Sun;
Peng Sun
State Key Laboratory of Metal Matrix Composites,
Shanghai Jiao Tong University
, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
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Nianjin Cai;
Nianjin Cai
State Key Laboratory of Metal Matrix Composites,
Shanghai Jiao Tong University
, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
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Jiajun Gu;
Jiajun Gu
State Key Laboratory of Metal Matrix Composites,
Shanghai Jiao Tong University
, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
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Qinglei Liu;
Qinglei Liu
State Key Laboratory of Metal Matrix Composites,
Shanghai Jiao Tong University
, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
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Huilan Su;
Huilan Su
State Key Laboratory of Metal Matrix Composites,
Shanghai Jiao Tong University
, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
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a)
Authors to whom correspondence should be addressed. Electronic addresses: wangzhang@sjtu.edu.cn and zhangdi@sjtu.edu.cn. Tel.: 86-21-54742476. Fax: 86-21-34202749.
Appl. Phys. Lett. 109, 153701 (2016)
Article history
Received:
June 12 2016
Accepted:
September 05 2016
Citation
Imran Zada, Wang Zhang, Yao Li, Peng Sun, Nianjin Cai, Jiajun Gu, Qinglei Liu, Huilan Su, Di Zhang; Angle dependent antireflection property of TiO2 inspired by cicada wings. Appl. Phys. Lett. 10 October 2016; 109 (15): 153701. https://doi.org/10.1063/1.4962903
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