V1-xTbxO2(x=0,1,2,3,4)(M)薄膜的制备及其性能研究
Preparation and properties of V1-xTbxO2(x=0,1,2,3,4)(M)thin films
杜金晶 1刘景田 1朱军 1林海洋 1翟芮潼 1左恒 2马嘉艺 1王东博1
作者信息
- 1. 西安建筑科技大学冶金工程学院,陕西 西安 710055
- 2. 陕西五洲矿业股份有限公司,陕西 商洛 726000
- 折叠
摘要
主要研究了重稀土铽元素(Tb)掺杂对二氧化钒薄膜V1-xTbxO2(x=0,1,2,3,4)(M)相结构、微观形貌、相变温度、光学及力学性能的影响.结果表明:V1-xTbxO2(x=0,1,2,3,4)(M)样品的衍射峰尖锐,未出现其他杂质峰,具有较高的结晶度和纯度.Tb元素掺杂能明显影响二氧化钒的微观结构特征,随着Tb掺杂量的增加,相变温度呈下降趋势,在 4%(原子分数,下同)的掺杂水平下,相变温度降至 59.01℃.紫外-可见-近红外光谱分析表明,在1%～4%的Tb掺杂水平下二氧化钒薄膜的光学性能增强.在 2%Tb掺杂时太阳光调制能力(ΔTsol)达到 9.1%,可见光透过率(Tlum)为 61.5%;在 4%Tb掺杂时可见光透过率达到 72.5%.力学性能表明,Tb掺杂对二氧化钒薄膜的力学性能具有增强作用.当掺杂量为 2%时,VO2 薄膜的力学性能显示出最大值,弹性模量及硬度分别为 83.606 5 GPa和8.002 6 GPa.
Abstract
This article mainly investigated the effects of heavy rare earth terbium element(Tb)doping on the phase structure,microstructure,phase transition temperature,optical,and mechanical properties of vanadium dioxide thin films V1-xTbxO2(x=0,1,2,3,4)(M).The analysis results show that the diffraction peaks of V1-xTbxO2(x=0,1,2,3,4)(M)samples are sharp,with no other impurity peaks observed,indicat-ing high crystallinity and purity.Tb element doping can significantly affect the microstructural charac-teristics of vanadium dioxide,with the phase transition temperature decreasing as the Tb doping level increases,reaching 59.01℃at a doping level of 4%.UV-Vis-NIR analysis indicates enhanced optical properties of vanadium dioxide thin films at Tb doping levels of 1%～4%.At 2%Tb doping,solar modu-lating ability(ΔTsol)reaches 9.1%,and visible transmittance(Tlum)is 61.5%.At 4%Tb doping,visible transmittance reaches 72.5%.Mechanical property tests show that Tb doping enhances the mechanical properties of vanadium dioxide thin films.When the doping level is 2%,the mechanical properties of VO2 films exhibit maximum values,with elastic modulus and hardness being 83.6065 GPa and 8.0026 GPa,respectively.
关键词
VO2薄膜/Tb掺杂/一步水热法/相变温度/光学性能Key words
VO2 thin film/Tb doping/one-step hydrothermal method/metal-insulator transition tem-perature/optical properties引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据