电致变色
材料科学
电致变色装置
储能
电化学
纳米技术
电极
电化学储能
化学浴沉积
光电子学
超级电容器
薄膜
化学
物理
物理化学
功率(物理)
量子力学
作者
Guofa Cai,Peng Cui,Wenxiong Shi,Samuel A. Morris,Shi Nee Lou,Jingwei Chen,Jing‐Hao Ciou,Vinod K. Paidi,Kug‐Seung Lee,Shuzhou Li,Pooi See Lee
标识
DOI:10.1002/advs.201903109
摘要
Abstract The rational design of previously unidentified materials that could realize excellent electrochemical‐controlled optical and charge storage properties simultaneously, are especially desirable and useful for fabricating smart multifunctional devices. Here, a facile synthesis of a 1D π –d conjugated coordination polymer (Ni‐BTA) is reported, consisting of metal (Ni)‐containing nodes and organic linkers (1,2,4,5‐benzenetetramine), which could be easily grown on various substrates via a scalable chemical bath deposition method. The resulting Ni‐BTA film exhibits superior performances for both electrochromic and energy storage functions, such as large optical modulation (61.3%), high coloration efficiency (223.6 cm 2 C −1 ), and high gravimetric capacity (168.1 mAh g −1 ). In particular, the Ni‐BTA film can maintain its electrochemical recharge‐ability and electrochromic properties even after 10 000 electrochemical cycles demonstrating excellent durability. Moreover, a smart energy storage indicator is demonstrated in which the energy storage states can be visually recognized in real time. The excellent electrochromic and charge storage performances of Ni‐BTA films present a great promise for Ni‐BTA nanowires to be used as practical electrode materials in various applications such as electrochromic devices, energy storage cells, and multifunctional smart windows.
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