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Ultra-Uniform and Very Thin Ag Nanowires Synthesized via the Synergy of Cl, Br and Fe3+ for Transparent Conductive Films

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School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, China
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Digital Printing and Imaging Technology, Chemnitz University of Technology, 09126 Chemnitz, Germany
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Research School of Chemistry and Applied Biomedical Sciences, Tomsk Polytechnic University, 30 Lenin Ave, Tomsk 634050, Russia
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Research School of Physics, Tomsk Polytechnic University, 30 Lenin Ave, Tomsk 634050, Russia
*
Author to whom correspondence should be addressed.
Nanomaterials 2020, 10(2), 237; https://doi.org/10.3390/nano10020237
Received: 13 December 2019 / Revised: 23 January 2020 / Accepted: 24 January 2020 / Published: 29 January 2020
The properties and applications of Ag nanowires (AgNWs) are closely related to their morphology and composition. Therefore, controlling the growth process of AgNWs is of great significance for technological applications and fundamental research. Here, silver nanowires (AgNWs) were synthesized via a typical polyol method with the synergistic effect of Cl, Br, and Fe3+ mediated agents. The synergistic impact of these mediated agents was investigated intensively, revealing that trace Fe3+ ions provided selective etching and hindered the strong etching effect from Cl and Br ions. Controlling this synergy allowed the obtainment of highly uniform AgNWs with sub-30 nm diameter and an aspect ratio of over 3000. Transparent conductive films (TCFs) based on these AgNWs without any post-treatment showed a very low sheet resistance of 4.7 Ω sq−1, a low haze of 1.08% at a high optical transmittance of 95.2% (at 550 nm), and a high figure of merit (FOM) of 1210. TCFs exhibited a robust electrical performance with almost unchanged resistance after 2500 bending cycles. These excellent high-performance characteristics demonstrate the enormous potential of our AgNWs in the field of flexible and transparent materials.
Keywords: silver nanowires; mediated agents; synergy; transparent conductive films; flexible electronics silver nanowires; mediated agents; synergy; transparent conductive films; flexible electronics
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MDPI and ACS Style

Wang, X.-M.; Chen, L.; Sowade, E.; Rodriguez, R.D.; Sheremet, E.; Yu, C.-M.; Baumann, R.R.; Chen, J.-J. Ultra-Uniform and Very Thin Ag Nanowires Synthesized via the Synergy of Cl, Br and Fe3+ for Transparent Conductive Films. Nanomaterials 2020, 10, 237.

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