非阻塞I/O
材料科学
电解质
电致变色
基质(水族馆)
水溶液
化学工程
电化学
溅射沉积
溅射
薄膜
纳米技术
电极
化学
有机化学
物理化学
工程类
催化作用
地质学
海洋学
作者
Yilin Ding,Mengying Wang,Zheyue Mei,Lei Liu,Jiaming Yang,Xiaolan Zhong,Mei Wang,Xungang Diao
标识
DOI:10.1002/admi.202102223
摘要
Abstract Depending on adjusting substrate temperature during film depositing, a series of NiO x films has been prepared by magnetron sputtering. The electrochromic (EC) advantage of NiO x films modified by substrate temperature is verified. Moderate heating substrate can improve surface charge transfer (from ≈30 to ≈40 mC cm −2 ) and energy storage capacity (45% increment) without damaging other performance effectively. Considering the different electrochemical mechanisms in varied electrolytes, the EC performance of NiO x films in two electrolytes is discussed. In KOH electrolyte, NiO x films at 300 °C substrates show prominent optical modulation (≈81%) and high charge capacity (≈40 mC cm −2 ). 300 °C heating compensates for the shortage of poor stability and tedious activation. In LiClO 4 ‐PC electrolyte, NiO x films can undergo long‐term cycles compared with aqueous conditions, the coloration efficiency keeps high level (≈80 cm 2 C −2 ) which means small charge quantities can drive a wide transmittance range. The cyclic discrepancy in two electrolytes can be ascribed to diverse reacted modes between electrolyte ions and NiO x films. In aqueous KOH electrolyte, EC process and activated state strongly relies on Ni 2+ distribution on films surface, while NiO x experiences two phases oxidation to get thorough coloration in PC‐Li based electrolyte.
科研通智能强力驱动
Strongly Powered by AbleSci AI