Ultrahigh Aspect Ratio Copper-Nanowire-Based Hybrid Transparent Conductive Electrodes with PEDOT:PSS and Reduced Graphene Oxide Exhibiting Reduced Surface Roughness and Improved Stability

Zhaozhao Zhu; Trent Mankowski; Kaushik Balakrishnan; Ali Sehpar Shikoh; Farid Touati; Mohieddine A Benammar; Masud Mansuripur; Charles M Falco

doi:10.1021/acsami.5b01379

Ultrahigh Aspect Ratio Copper-Nanowire-Based Hybrid Transparent Conductive Electrodes with PEDOT:PSS and Reduced Graphene Oxide Exhibiting Reduced Surface Roughness and Improved Stability

ACS Appl Mater Interfaces. 2015 Aug 5;7(30):16223-30. doi: 10.1021/acsami.5b01379. Epub 2015 Jul 23.

Authors

Zhaozhao Zhu¹, Trent Mankowski¹, Kaushik Balakrishnan¹, Ali Sehpar Shikoh², Farid Touati², Mohieddine A Benammar², Masud Mansuripur¹, Charles M Falco¹

Affiliations

¹ †College of Optical Sciences, The University of Arizona, 1630 East University Boulevard, Tucson, Arizona 85721, United States.
² ‡Department of Electrical Engineering, College of Engineering, Qatar University, P. O. Box 2713, Doha, Qatar.

PMID: 26151195
DOI: 10.1021/acsami.5b01379

Abstract

Copper nanowires (CuNWs) with ultrahigh aspect ratio are synthesized with a solution process and spray-coated onto select substrates to fabricate transparent conductive electrodes (TCEs). Different annealing methods are investigated and compared for effectiveness and convenience. The CuNWs are subsequently combined with the conductive polymer poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate) (

Pedot: PSS) or with reduced graphene oxide (rGO) platelets in order to reduce the surface roughness and improve the durability of the fabricated TCEs. Our best-performing

Pedot: PSS/CuNW films have optical transmittance T550 = 84.2% (at λ = 550 nm) and sheet resistance Rs = 25 Ω/sq, while our best CuNW/rGO films have T550 = 84% and Rs = 21.7 Ω/sq.

Keywords: conductive polymer; hybrid thin films; nanowires; reduced graphene oxide; transparent conductive electrodes.

Publication types

Research Support, Non-U.S. Gov't