Bardet Laetitia, Papanastasiou Dorina T, Crivello Chiara, Akbari Masoud, Resende João, Sekkat Abderrahime, Sanchez-Velasquez Camilo, Rapenne Laetitia, Jiménez Carmen, Muñoz-Rojas David, Denneulin Aurore, Bellet Daniel
Univ. Grenoble Alpes, CNRS, Grenoble INP, LGP2, F-38000 Grenoble, France.
Univ. Grenoble Alpes, CNRS, Grenoble INP, LMGP, F-38000 Grenoble, France.
Nanomaterials (Basel). 2021 Oct 21;11(11):2785. doi: 10.3390/nano11112785.
Silver nanowire (AgNW) networks have been intensively investigated in recent years. Thanks to their attractive physical properties in terms of optical transparency and electrical conductivity, as well as their mechanical performance, AgNW networks are promising transparent electrodes (TE) for several devices, such as solar cells, transparent heaters, touch screens or light-emitting devices. However, morphological instabilities, low adhesion to the substrate, surface roughness and ageing issues may limit their broader use and need to be tackled for a successful performance and long working lifetime. The aim of the present work is to highlight efficient strategies to optimize the physical properties of AgNW networks. In order to situate our work in relation to existing literature, we briefly reported recent studies which investigated physical properties of AgNW networks. First, we investigated the optimization of optical transparency and electrical conductivity by comparing two types of AgNWs with different morphologies, including PVP layer and AgNW dimensions. In addition, their response to thermal treatment was deeply investigated. Then, zinc oxide (ZnO) and tin oxide (SnO) protective films deposited by Atmospheric Pressure Spatial Atomic Layer Deposition (AP-SALD) were compared for one type of AgNW. We clearly demonstrated that coating AgNW networks with these thin oxide layers is an efficient approach to enhance the morphological stability of AgNWs when subjected to thermal stress. Finally, we discussed the main future challenges linked with AgNW networks optimization processes.
近年来，银纳米线（AgNW）网络受到了广泛研究。由于其在光学透明度、导电性以及机械性能方面具有吸引人的物理特性，AgNW网络有望成为用于多种器件的透明电极（TE），如太阳能电池、透明加热器、触摸屏或发光器件。然而，形态不稳定性、对基底的低附着力、表面粗糙度和老化问题可能会限制其更广泛的应用，为实现成功的性能和长工作寿命，需要解决这些问题。本工作的目的是突出优化AgNW网络物理特性的有效策略。为了将我们的工作与现有文献联系起来，我们简要报道了近期研究AgNW网络物理特性的研究。首先，我们通过比较两种具有不同形态的AgNW（包括PVP层和AgNW尺寸）来研究光学透明度和导电性的优化。此外，还深入研究了它们对热处理的响应。然后，针对一种AgNW，比较了通过大气压空间原子层沉积（AP-SALD）沉积的氧化锌（ZnO）和氧化锡（SnO）保护膜。我们清楚地证明，用这些薄氧化层涂覆AgNW网络是一种在热应力作用下提高AgNW形态稳定性的有效方法。最后，我们讨论了与AgNW网络优化过程相关的主要未来挑战。
