Indium-free, Highly Transparent, Flexible Cu2O/Cu/Cu2O Mesh Electrodes for Flexible Touch Screen Panels

Overview

Journal Sci Rep

Specialty Science

Date 2015 Nov 20

PMID 26582471

Citations 10

Authors

Dong-Ju Kim

Hyo-Joong Kim

Ki-Won Seo

Ki-Hyun Kim

Tae-Wong Kim

Han-Ki Kim

Affiliations

Soon will be listed here.

Abstract

We report on an indium-free and cost-effective Cu2O/Cu/Cu2O multilayer mesh electrode grown by room temperature roll-to-roll sputtering as a viable alternative to ITO electrodes for the cost-effective production of large-area flexible touch screen panels (TSPs). By using a low resistivity metallic Cu interlayer and a patterned mesh structure, we obtained Cu2O/Cu/Cu2O multilayer mesh electrodes with a low sheet resistance of 15.1 Ohm/square and high optical transmittance of 89% as well as good mechanical flexibility. Outer/inner bending test results showed that the Cu2O/Cu/Cu2O mesh electrode had a mechanical flexibility superior to that of conventional ITO films. Using the diamond-patterned Cu2O/Cu/Cu2O multilayer mesh electrodes, we successfully demonstrated TSPS of the flexible film-film type and rigid glass-film-film type TSPs. The TSPs with Cu2O/Cu/Cu2O mesh electrode were used to perform zoom in/out functions and multi-touch writing, indicating that these electrodes are promising cost-efficient transparent electrodes to substitute for conventional ITO electrodes in large-area flexible TSPs.

Citing Articles

Fabrication of Flexible and Transparent Metal Mesh Electrodes Using Surface Energy-Directed Assembly Process for Touch Screen Panels and Heaters.

Yuan S, Fan Z, Wang G, Chai Z, Wang T, Zhao D Adv Sci (Weinh). 2023; 10(34):e2304990.

PMID: 37818769 PMC: 10700185. DOI: 10.1002/advs.202304990.

Positive and Negative Changes in the Electrical Conductance Related to Hybrid Filler Distribution Gradient in Composite Flexible Thermoelectric Films Subjected to Bending.

Bugovecka L, Buks K, Andzane J, Miezubrale A, Bitenieks J, Zicans J Nanomaterials (Basel). 2023; 13(7).

PMID: 37049306 PMC: 10096738. DOI: 10.3390/nano13071212.

Comparative Study of Aluminum-Doped Zinc Oxide, Gallium-Doped Zinc Oxide and Indium-Doped Tin Oxide Thin Films Deposited by Radio Frequency Magnetron Sputtering.

Khan S, Stamate E Nanomaterials (Basel). 2022; 12(9).

PMID: 35564248 PMC: 9104591. DOI: 10.3390/nano12091539.

Roll-to-roll sputtered and patterned Cu O/Cu/Cu O multilayer grid electrode for flexible smart windows.

Seo H, Nah Y, Kim H RSC Adv. 2022; 8(47):26968-26977.

PMID: 35541081 PMC: 9083334. DOI: 10.1039/c8ra03252a.

Highly flexible Ag nanowire network covered by a graphene oxide nanosheet for high-performance flexible electronics and anti-bacterial applications.

Sim H, Kim H Sci Technol Adv Mater. 2021; 22(1):794-807.

PMID: 34552391 PMC: 8451606. DOI: 10.1080/14686996.2021.1963640.

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