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Silver Nanowire–Conducting Polymer–ITO Hybrids for Flexible and Transparent Conductive Electrodes with Excellent Durability
journal contribution
posted on 2015-07-29, 00:00 authored by Ji Hoon Yoo, Yunkyung Kim, Mi Kyoung Han, Seonghwa Choi, Ki Yong Song, Kwang Choon Chung, Ji Man Kim, Jeonghun KwakSolution-processed silver nanowire
(AgNW) films have attracted
attention as transparent and conductive electrodes for flexible optoelectronic
devices and touch screens, to replace sputtered indium–tin-oxide
(ITO) films. However, the mechanical flexibility, environmental durability,
and the optical (such as transparency and a haze) and electrical properties
of the AgNW films should be improved for their practical application.
In this work, high-performance and roll-to-roll processed AgNW-based
hybrid electrodes comprising poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)
(PEDOT:PSS) and/or ITO are introduced. The optical and electrical
properties of the AgNW films combined with PEDOT:PSS, ITO, or both
of them were systematically examined. Among the films, the AgNW–PEDOT:PSS–ITO
hybrid film exhibits a high transmittance (88%) and a low sheet resistance
(44 Ω sq–1) with a small haze (1.9%). Moreover,
the hybrid films show excellent durability to a variety of environmental
stresses. By virtues of the high performance and durability, it is
believed that the AgNW–PEDOT:PSS–ITO hybrid electrodes
are highly suitable for practical use.