Metallic nanomesh with disordered dual-size apertures as wide-viewing-angle transparent conductive electrode

Qiu, Tengfei, Luo, Bin, Ali, Fawad, Jaatinen, Esa, Wang, Lianzhou, & Wang, Hongxia (2016) Metallic nanomesh with disordered dual-size apertures as wide-viewing-angle transparent conductive electrode. ACS Applied Materials and Interfaces, 8(35), pp. 22768-22773.

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Abstract

With the rapid development of display-related markets, transparent conductive films (TCFs) with wide viewing angles, high transmittance and low sheet resistance are in high demand. However, as a promising TCF material, metallic membranes with a submicrometer-sized periodicity pattern fabricated by currently available techniques always reveal the angle-dependent structure color which can be a major issue in the development of wide-angle viewing display-related applications. In this work, we demonstrate an Au nanomesh with disordered dual-size apertures as a novel TCF with wide viewing angles which is made via a modified nanosphere lithography technique. The as-prepared Au nanomesh film shows good optoelectronic properties (Rs = 160 Ω sq(-1), T = 80%; Rs = 8 Ω sq(-1), T = 57%) that are similar to the Au nanomesh with single size apertures, while the former exhibits excellent wide-angle viewing performance. There is no obvious change in the film when the viewing angle, the light incidence angle or the orientation of substrate vary in the range of 0-90°. In contrast, a rainbow color is observed with the film with ordered single-size apertures. Electrochromic devices based on the novel metallic film show more uniform color distribution than the devices based on metallic film with ordered single-size apertures under indoor natural light irradiation. These findings demonstrate the applicability of the Au nanomesh film with dual-size apertures in enhancing display quality of high-performance optoelectronic devices.

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ID Code: 98916
Item Type: Journal Article
Refereed: Yes
Keywords: dual-size apertures, electrochemic, metallic nanomesh, nanosphere lithography, structure colour, transparent conductive film, wide viewing angle
DOI: 10.1021/acsami.6b08173
ISSN: 1944-8252
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Division of Administrative Services
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Funding:
Copyright Owner: Copyright 2016 American Chemical Society
Deposited On: 20 Sep 2016 00:25
Last Modified: 20 Sep 2016 22:08

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