发光学报2025，Vol.46Issue(6)：1082-1094,13.DOI:10.37188/CJL.20250031
高倾角WO3沉积实现快速响应的水系锌离子电致变色
High-inclination WO3 Deposition Enabled Fast-response Aqueous Zinc-ion Electrochromism
摘要
Abstract
Aqueous zinc-ion electrochromic(EC)technology,boasting the capability to fulfill both safety and cost-ef-fectiveness requirements,is garnering extensive attention in various application areas including smart windows,thermal management,displays,and camouflage.However,typical inorganic EC materials,such as tungsten oxides(WO3),of-ten suffer from slow ion diffusion kinetics and limited optical contrast within the aqueous Zn2+electrolyte because of the large size and strong Coulombic interactions of the Zn2+,which limits their wide applicability.Here,ordered WO3 nanowire films,constructed by a one-step grazing angle deposition method,is demonstrated to boost the response speed and optical contrast during EC phenomena.Compared with dense films,the ordered WO3 nanowire films with a porosity of 44.6%demonstrate anti-reflective property and excellent comprehensive EC performance,including fast response time(3.6 s and 1.2 s for coloring and bleaching,respectively),large optical contrast(66.6%at 700 nm)and high col-oration efficiency(64.3 cm2·C-1).A large-area prototype EC device(17 cm×12 cm)with fast color-switching is also successfully achieved.Mechanistic studies show that the improved performance is mainly due to the ordered porous nanowire structures,which provides direct electron transfer paths and sufficient interfacial contacts,thus simultaneously enhancing the electrochemical activity and fast redox kinetics.This study provides a simple and effective strategy to im-prove the performance of tungsten oxide-based aqueous zinc ion EC materials and devices.关键词
电致变色/WO3/水系锌离子电解质/有序纳米线/掠射角沉积Key words
electrochromic/WO3/aqueous Zn2+electrolyte/ordered nanowires/glancing angle deposition分类
数理科学引用本文复制引用
陈硕,邢开笑,吕营,姚鑫鑫,李盼,郭晓阳,王铁男,李晓天,刘星元..高倾角WO3沉积实现快速响应的水系锌离子电致变色[J].发光学报,2025,46(6):1082-1094,13.基金项目
吉林省科技发展计划(20230508109RC,20230201051GX,20220201091GX) （20230508109RC,20230201051GX,20220201091GX）
国家自然科学基金(62035013,61275235) Supported by Jilin Provincial Scientific and Technological Development Program(20230508109RC,20230201051GX,20220201091GX) （62035013,61275235）
National Natural Science Foundation of China(62035013,61275235) （62035013,61275235）
