天津工业大学学报2025，Vol.44Issue(3)：23-30,8.DOI:10.3969/j.issn.1671-024x.2025.03.003
VO2(M)纳米片/PET柔性复合薄膜的制备及其光电性能
Preparation of VO2(M)nanosheets/PET flexible composite films and its optoelectronic properties
摘要
Abstract
To address the issue of poor electrical performance of films caused by the high intrinsic resistivity of VO2 nanopar-ticles and poor connection between VO2 nanoparticles during the film coating process,VO2(M)nanosheets were synthesized based on a hydrothermal-annealing method with optimization of the annealing vacuum degree and annealing temperature.A continuous and dense VO2(M)film was fabricated on the surface of flexible polyethy-lene terephthalate(PET)by spin-coating,and the optoelectronic properties of VO2(M)nanosheets/PET flexible composite films were analyzed.The results show that due to the good connection maintained by the nanosheets during dynamic bending,their in-plane two-dimensional continuous structure significantly reduces the interfa-cial resistance.The VO2(M)nanosheets obtained under the optimal annealing vacuum degree of 1.5 Pa at an-nealing temperature of 420℃ were used to prepare flexible VO2(M)/PET films,and the films have both pho-tothermal regulation ability and tunable resistance.Under the condition of visible light transmittance of 41.26％,the photothermal modulation efficiency of 4.51％is achieved,and the change of resistance rate during the phase transition could reach 2.94 × 102.It provides a material foundation for the development of flexible optoelectronic devices.关键词
二氧化钒(VO2)/柔性薄膜/水热-退火法/光学性能/电学性能Key words
vanadium dioxide/flexible film/hydrothermal-annealing method/optical properties/electrical properties分类
通用工业技术引用本文复制引用
黄竹林,宋浩然,李明,胡梦恩,吴良飞,李昕扬..VO2(M)纳米片/PET柔性复合薄膜的制备及其光电性能[J].天津工业大学学报,2025,44(3):23-30,8.基金项目
国家自然科学基金项目(52222208) （52222208）
