中间层热处理温度对VO<sub>2</sub>/TiO<sub>2</sub>复合薄膜热致相变性能的影响

张玉波; 苗景国; 李志宏; 黄婉霞

doi:10.7513/j.issn.1004-7638.2015.03.008

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中间层热处理温度对VO₂/TiO₂复合薄膜热致相变性能的影响

doi: 10.7513/j.issn.1004-7638.2015.03.008

1. 四川工程职业技术学院, 四川德阳 618000;
2. 四川大学材料科学与工程学院, 四川成都 610064

基金项目:

国家自然科学基金项目(61271075)。

详细信息

作者简介:
张玉波(1981-),女,甘肃兰州人,讲师,博士,从事VO₂功能材料研究。

中图分类号: TF841.3，TF823，TB43
计量
- 文章访问数: 10
- HTML全文浏览量: 2
- PDF下载量: 1
- 被引次数: 0
出版历程
- 收稿日期: 2015-01-06

Effects of Interlayer Annealing Temperature on the Thermochromic Properties of VO₂/TiO₂ Thin Film

1. Sichuan Engineering Technical College, Deyang 618000, Sichuan, China;
2. College of Material Science and Engineering, Sichuan University, Chengdu 610064, Sichuan, China

摘要

摘要: 通过溶胶凝胶法在云母表面制备了TiO₂中间层薄膜,再在中间层上制备了VO₂薄膜。通过视频光学接触角测量仪检测TiO₂薄膜的亲水性,利用XRD、傅立叶红外光谱仪和紫外可见分光光度计对复合薄膜的结构及光学特性进行分析。试验表明,紫外光激发后的TiO₂薄膜具有良好的亲水性,能够实现V溶胶的均匀涂覆。TiO₂中间层经510~560℃退火后,复合薄膜沿(011)晶面择优取向生长,复合薄膜红外屏蔽效能高,相变温度及滞后温宽都较低。中间层经460℃退火后的复合薄膜沿(111)晶面取向生长,红外屏蔽效能达到92%以上。
- TiO₂中间层 /
- 复合薄膜 /
- 热致相变性能
Abstract: TiO₂ interlayer was deposited on the mica substrate,and the VO₂ film was fabricated on the TiO₂ interlayer under UV light irradiated. Video-based contact angle measuring device was used to analyze the hydrophilicity of the TiO₂ interlayer. XRD,FTIR and UV-vis were used to analyze the microstructure and the thermochromic properties of the VO₂/ TiO₂ composite films. The results suggest that the hydrophilicity of the TiO₂ film can be enhanced under ultraviolet excitation,and it is beneficial to coat V sol film uniformly on the TiO₂/ mica substrate. The VO₂/ TiO₂ composite films grow in a preferred orientation along the (011) direction under 510 ~ 560 ℃ of TiO₂ interlayer heat treating temperature. The transition temperature and hysteresis width of the composite films are reduced. The composite films grow in a preferred orientation along the (111) direction under 460 ℃ of annealing temperature for the TiO₂ interlayer,with more than 92% of shielding efficiency.
- TiO₂ interlayer /
- composite films /
- thermochromic properties