State Key Laboratory of Information Photonics and Optical Communications and School of Science, Beijing University of Posts and Telecommunications, Beijing, 100876, China.
State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China.
Adv Mater. 2017 Nov;29(41). doi: 10.1002/adma.201703238. Epub 2017 Sep 11.
Electrochromic smart windows (ECSWs) are considered as the most promising alternative to traditional dimming devices. However, the electrode technology in ECSWs remains stagnant, wherein inflexible indium tin oxide and fluorine-doped tin oxide are the main materials being used. Although various complicated production methods, such as high-temperature calcination and sputtering, have been reported, the mass production of flexible and transparent electrodes remains challenging. Here, a nonheated roll-to-roll process is developed for the continuous production of flexible, extralarge, and transparent silver nanofiber (AgNF) network electrodes. The optical and mechanical properties, as well as the electrical conductivity of these products (i.e., 12 Ω sq at 95% transmittance) are comparable with those AgNF networks produced via high-temperature sintering. Moreover, the as-prepared AgNF network is successfully assembled into an A4-sized ECSW with short switching time, good coloration efficiency, and flexibility.
电致变色智能窗 (ECSW) 被认为是传统调光装置的最具前景的替代品。然而，ECSW 中的电极技术仍然停滞不前，其中不灵活的铟锡氧化物和掺氟氧化锡是主要使用的材料。尽管已经报道了各种复杂的生产方法，如高温煅烧和溅射，但灵活透明电极的大规模生产仍然具有挑战性。在这里，开发了一种非加热的卷对卷工艺，用于连续生产灵活、超大尺寸和透明的银纳米纤维 (AgNF) 网络电极。这些产品的光学和机械性能以及电导率（即在 95%透光率时为 12 Ω sq）与通过高温烧结生产的 AgNF 网络相当。此外，所制备的 AgNF 网络成功地组装成具有短开关时间、良好着色效率和柔韧性的 A4 尺寸的 ECSW。
