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Silver Nanowires Buried at the Surface of Mixed Cellulose Ester as Transparent Conducting Electrode

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Silver nanowires (AgNWs) as transparent conductors have emerged as one of the most promising substitute for indium tin oxide. In this paper, silver nanowires with a diameter of 90–150 nm and a length of 20–50μm were synthesized by a polyol process. The flexible transparent conductive AgNWs films were fabricated with mixed cellulose eater (MCE) as matrix by the improved vacuumfiltrating method. The AgNWs-MCEs films with transparent and even were obtained by fixed with four pins located in the middle of each boundary on a PET and the treatment with acetone vapor at higher temperature and more times. The surface morphology and the optical, conductive, and mechanical properties were investigated. The spatial uniformity AgNWs networks were observed. This continuous network provided electrical interconnects throughout the entire network with the formation of an effective percolative network. Both the transmittance and the Rs of the AgNWs-MCE films decrease with increasing of the deposition density of AgNWs. Samples revealed the changes of σOpDC from 291 at T = 54.1% and R s = 1.8 Ω· sq−1 to 9.6 at T = 83.5% and R s = 207.8 Ω· sq−1. In the middle range, which is of most interest for electrode applications, the film with the deposition densities of AgNWs of 130 mg/m2 displays T = 77.0% and R s = 9.6 Ω· sq−1. The change in R s of AgNWs-MCE electrodes after tape tests for 200 times is less than 2%. The bending test indicated that the change in R s of AgNWs-MCE electrodes is less than 10% even after 200 cycles of compressive or tensile bending. This good mechanical robustness can be attributed to the low thickness of the AgNWs-MCE film and good adhesion of AgNWs to MCE matrix. These encouraging results may have a potential application in flexible and transparent electronics and other optoelectronics systems.
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Keywords: Flexible; Mixed Cellulose Eater; Silver Nanowire; Transparent Conductive Electrode

Document Type: Research Article

Affiliations: 1: Department of Chemistry and Biology, University of Electronic Science and Technology of China Zhongshan Institute, Zhongshan 528402, China 2: State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Microelectronics and Solid-State Electronics, University of Electronic Science and Technology of China, Cheng Du 610054, China

Publication date: August 1, 2017

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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