Zhan Xuhe, Gao Feiyu, Zhuang Qianyu, Zhang Yani, Dang Jie
National Innovation Center of High Speed Train (Qingdao), Qingdao 266108, P. R. China.
College of Materials Science and Engineering, Chongqing University, Chongqing 400044, P. R. China.
ACS Omega. 2022 Feb 28;7(10):8960-8967. doi: 10.1021/acsomega.1c07370. eCollection 2022 Mar 15.
In this work, a two-dimensional porous structure of a V-doped NiO film with excellent electrochromic properties on an ITO substrate was synthesized by a hydrothermal method. The influence of V ions on the NiO film was explored by adjusting the amount of V doping, including refining the crystal grains, increasing the specific surface area of the film, and accelerating the diffusion rate of OH in the film. Compared with the undoped NiO film, a 3 atom % V-doped NiO film comes out with superior electrochromic properties with large optical transmittance modulation (81.9% at 600 nm), fast response times (1.2 and 0.9 s), and excellent cycle stability (90.6%). This work creates innovation direction in the field of intelligent energy-saving window materials with high electrochromic properties.
在这项工作中，通过水热法在ITO衬底上合成了具有优异电致变色性能的V掺杂NiO薄膜的二维多孔结构。通过调整V掺杂量来探究V离子对NiO薄膜的影响，包括细化晶粒、增加薄膜的比表面积以及加速OH在薄膜中的扩散速率。与未掺杂的NiO薄膜相比，3原子% V掺杂的NiO薄膜具有优异的电致变色性能，具有大的光学透过率调制（600 nm处为81.9%）、快速响应时间（1.2和0.9 s）以及优异的循环稳定性（90.6%）。这项工作为具有高电致变色性能的智能节能窗材料领域开创了创新方向。
