title: Metallic Nanomesh with Disordered Dual-Size Apertures As Wide-Viewing-Angle Transparent Conductive Electrode.
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.
authors.affiliation: School of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology , Brisbane, Queensland 4001, Australia.
authors.forename: Tengfei
authors.initials: T
authors.lastname: Qiu
authors.affiliation: Nanomaterials Centre, School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology, The University of Queensland , Brisbane, Queensland 4072, Australia.
authors.forename: Bin
authors.initials: B
authors.lastname: Luo
authors.affiliation: School of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology , Brisbane, Queensland 4001, Australia.
authors.forename: Fawad
authors.initials: F
authors.lastname: Ali
authors.affiliation: School of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology , Brisbane, Queensland 4001, Australia.
authors.forename: Esa
authors.initials: E
authors.lastname: Jaatinen
authors.affiliation: Nanomaterials Centre, School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology, The University of Queensland , Brisbane, Queensland 4072, Australia.
authors.forename: Lianzhou
authors.initials: L
authors.lastname: Wang
authors.affiliation: School of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology , Brisbane, Queensland 4001, Australia.
authors.forename: Hongxia
authors.initials: H
authors.lastname: Wang
keywords: dual-size apertures; electrochromic; metallic nanomesh; nanosphere lithography; structure color; transparent conductive film; wide viewing angle