Embedding Silver Nanowires into a Hydroxypropyl Methyl Cellulose Film for Flexible Electrochromic Devices with High Electromechanical Stability,ACS Applied Materials & Interfaces

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Embedding Silver Nanowires into a Hydroxypropyl Methyl Cellulose Film for Flexible Electrochromic Devices with High Electromechanical Stability
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2020-12-23 , DOI: 10.1021/acsami.0c16066
Donghai Li ₁ , Li Wang ₁ , Wenhui Ji ₁ , Hongchen Wang ₁ , Xiaoping Yue ₁ , Qizeng Sun ₁ , Lin Li ₁ , Chengwu Zhang ₁ , Jinhua Liu ₁ , Gang Lu ₁ , Hai-Dong Yu _{1,

2} , Wei Huang _{1,

2}

Affiliation

Transparent conductive films (TCFs) based on silver nanowires (AgNWs) are becoming one of the best candidates in realizing flexible optoelectronic devices. The AgNW-based TCF is usually prepared by coating AgNWs on a transparent polymer film; however, the coated AgNWs easily detach from the polymer underneath because of the weak adhesion between them. Herein, a network of AgNWs is embedded in the transparent hydroxypropyl methyl cellulose film, which has a strong adhesion with the AgNWs. The obtained TCF shows high optical transmittance (>85%), low roughness (rms = 4.8 ± 0.5 nm), and low haze (<0.2%). More importantly, owing to the embedding structure and strong adhesion, this TCF also shows excellent electromechanical stability, which is superior to the reported ones. Employing this TCF in a flexible electrochromic device, the obtained device exhibits excellent cyclic electromechanical stability and high coloring efficiency. Our work demonstrates a promising TCF with superior electromechanical stability for future applications in flexible optoelectronics.

中文翻译：

将银纳米线嵌入到羟丙基甲基纤维素膜中，用于具有高机电稳定性的柔性电致变色器件

基于银纳米线（AgNW）的透明导电膜（TCF）成为实现柔性光电器件的最佳候选者之一。基于AgNW的TCF通常是通过将AgNWs涂覆在透明聚合物膜上来制备的；然而，由于它们之间的弱粘合性，被涂覆的AgNW很容易从下面的聚合物上脱离。在此，AgNW的网络嵌入在透明的羟丙基甲基纤维素膜中，该膜与AgNW具有强的粘附性。所获得的TCF显示出高透光率（＞ 85％），低粗糙度（rms ＝ 4.8±0.5nm）和低雾度（＜0.2％）。更重要的是，由于其嵌入结构和强大的附着力，该TCF还显示出优异的机电稳定性，优于已报道的机电稳定性。在柔性电致变色设备中使用该TCF，所获得的器件表现出优异的循环机电稳定性和高着色效率。我们的工作证明了有希望的TCF具有优异的机电稳定性，可用于未来在柔性光电中的应用。

更新日期：2021-01-13

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