Fused Silver Nanowires with Metal Oxide Nanoparticles and Organic Polymers for Highly Transparent Conductors

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• 作者：Rui Zhu ; Choong-Heui Chung ; Kitty C. Cha ; Wenbing Yang ; Yue Bing Zheng ; Huanping Zhou ; Tze-Bin Song ; Chun-Chao Chen ; Paul S. Weiss ; Gang Li ; Yang Yang
• 刊名：ACS Nano
• 出版年：2011
• 出版时间：December 27, 2011
• 年：2011
• 卷：5
• 期：12
• 页码：9877-9882
• 全文大小：843K
• 年卷期：0
• ISSN：1936-086X

文摘

Silver nanowire (AgNW) networks are promising candidates to replace indium–tin–oxide (ITO) as transparent conductors. However, complicated treatments are often required to fuse crossed AgNWs to achieve low resistance and good substrate adhesion. In this work, we demonstrate a simple and effective solution method to achieve highly conductive AgNW composite films with excellent optical transparency and mechanical properties. These properties are achieved via sequentially applying TiO₂ sol–gel and PEDOT:PSS solution to treat the AgNW film. TiO₂ solution volume shrinkage and the capillary force induced by solvent evaporation result in tighter contact between crossed AgNWs and improved film conductivity. The PEDOT:PSS coating acts as a protecting layer to achieve strong adhesion. Organic photovoltaic devices based on the AgNW–TiO₂–PEDOT:PSS transparent conductor have shown comparable performance to those based on commercial ITO substrates.