https://scholars.lib.ntu.edu.tw/handle/123456789/577184
標題: | Electroactive Triphenylamine-Based Polymer Films as Passivation Layers for Improving Electrochemical Oxidation Stability of Silver Nanowires | 作者: | Li F.-W Yen T.-C Manavalan S Liou G.-S. GUEY-SHENG LIOU |
關鍵字: | Cost effectiveness; Electric resistance measurement; Electrochemical oxidation; Electrochemical sensors; Electrochromic devices; Electrochromism; Electrodes; Indium compounds; Optoelectronic devices; Passivation; Semiconducting films; Silver; Silver nanowires; Stability; Tin oxides; Transparency; Voltammetry; Ambipolar conduction; Differential pulse voltammetry techniques; Electrochemical stabilities; Electrochromic behavior; Fabrication strategies; Indium tin oxide electrodes; Mechanical stimulus; Operational stability; Polymer films | 公開日期: | 2021 | 來源出版物: | ACS Applied Polymer Materials | 摘要: | Silver nanowires (AgNWs) have emerged as a greater promising material for transparency-based electrodes compared to indium-tin-oxide (ITO) electrodes because of the tunable figures of merit, large-scale processability, and flexibility. However, they still suffered from a crucial problem of instability under the thermal condition, mechanical stimuli, and particularly sustained electrical currents, which is a challenge persisting to date. Here, we demonstrate the improved electrochemical stability of AgNWs by a simple cost-effective electroactive triphenylamine (TPA)-based polymer film as a passivation layer onto the AgNW networks. The AgNW/TPPA hybrid electrode could not only enhance the overall performance including electrical oxidation stability and adhesion to the substrates but also has little effect on transparency contrary to typical passivation films. Besides, the electrochromic behaviors of the obtained AgNW/TPPA hybrid electrode demonstrated obvious multicolor appearance changes during their two oxidation stages. Finally, the AgNW/TPPA hybrid was fabricated as an electrochromic device (ECD) according to the ambipolar conduction behavior. The fabricated ECDs were also used in cyclic and differential pulse voltammetry techniques at a wide-range applied potential for continuous 300 switching cycles, which signifies that our proposed method has long-term operational stability. Thus, our fabrication strategy platform should enable an improved pathway to the development of optoelectronic devices and offer considerable promise for addressing growing concerns of device stability. ? 2021 American Chemical Society. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85106467551&doi=10.1021%2facsapm.1c00124&partnerID=40&md5=f29025bec70a6527d3d345c34c6a57c6 https://scholars.lib.ntu.edu.tw/handle/123456789/577184 |
ISSN: | 26376105 | DOI: | 10.1021/acsapm.1c00124 |
顯示於: | 高分子科學與工程學研究所 |
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