为了提高VO2薄膜的热致相变性能,采用复合结构与掺杂相结合的方法,首先通过溶胶-凝胶法在云母基底上制备锐钛型TiO2薄膜,再在光致亲水性处理的TiO2/云母基底上涂覆V2O5以及掺钨V2O5水溶胶,然后经热处理获得VO2/TiO2及VxW1-xO2/TiO2复合薄膜.采用X射线衍射仪(XRD)、场发射扫描电子显微镜(FESEM)、傅立叶变换红外光谱仪(FTIR)研究薄膜的物相、表面形貌以及热致相变特性.结果表明,VO2/TiO2复合薄膜晶体生长为(011)面择优取向；VxW1-xO2/TiO2复合薄膜产生多种取向.TiO2中间层有助于使VO2薄膜生长致密,相变温度降低,更使VxW1-xO2/TiO2复合薄膜滞后温宽降至约4℃.
参考文献
| [1] | Imada M,Fujimori A,Tokura Y.Metal-insulator transitions.Reviews of Modern Physics,1998,70(4):1039-1263. |
| [2] | Morin F J.Oxides which show a metal-to-insulator transition at the neel temperature.Phys.Rev.Lett.,1959,3(1):34--36. |
| [3] | Nihei Y,Sasakawa Y,Okimura K.Advantages of inductively coupled plasma-assisted sputtering for preparation of stoichiometric VO2 films with metal-insulator transition.Thin Solid Films,2008,516(11):3572-3576. |
| [4] | Zhang Chen,Gao Yanfeng,Kang Litao,et al.VO2-based doublelayered films for smart windows:optical design,all-solution preparation and improved properties.Solar Energy Materials&Solar Cells,2011,95:2677-2684. |
| [5] | Qureshi U,Manning T D,Parkin I P.Atmospheric pressure chemical vapour deposition of VO2 and VO2/TiO2 films from the reaction of VOCl3,TiCl4 and water.J.Mater.Chem.,2004,14(7):1190-1194. |
| [6] | Zhu Hui-Qun,Li Yi,Zhou Sheng,et al.Study on thermochromic properties of VO2/ZnO nanocrystalline composite films.Acta Phys.Sin.,2011,60(10):098104-1-5. |
| [7] | Jin P,Xu G,Tazawa M,et al.Design,formation and characterization of a novel multifunctional window with VO2 and TiO2 coatings.Appl.Phys.A:Mater.Sci.Process.2003,77(3/4):455-459. |
| [8] | Zhang Zongtao,Yanfeng Gao,Kang Litao,et al.Effects of a TiO2 buffer layer on solution-deposited VO2 films:enhanced oxidization durability.J.Phys.Chem.C,2010,114(50):22214-22220. |
| [9] | Li Jian,Dho Joonghoe.Controlling metal-insulator transition in the hetero-epitaxial VO2/TiO2 bilayer grown on Al2O3.Journal of Crystal Growth,2010,312(22):3287-3291. |
| [10] | Muraoka Y,Ueda Y,Hiroi Z,et al.Large modification of the metal-insulator transition temperature in strained VO2 films grown on TiO2 substrates.Journal of Physics And Chemistry of Solids,2002,62(6/7/8):965-967. |
| [11] | Muraoka Y,Saeki K,Yao,Y,et al.Angle-resolved photoemission spectroscopy for VO2 thin films grown on TiO2 (001) substrates.Journal of Electron Spectroscopy and Related Phenomena,2010,181(2/3):249-251. |
| [12] | Shi Qiwu,Huang Wanxia,Zhang Yaxin,et al.Giant phase transition properties at terahertz range in VO2 films deposited by Sol-Gel method.ACS Applied Materials & Interfaces,2011,3(9):3523-3527. |
| [13] | Yan J Z,Zhang Y,Huang W X.Effect of Mo-W co-doping on semiconductor-metal phase transition temperature of vanadium dioxide film.Thin Solid Films,2008,516(23):8554-8558. |
| [14] | Madaeni S S,Ghaemi N.Characterization of self-cleaning RO membranes coated with TiO2 particles under UV irradiation.Journal of Membrane Science 2007,303(1/2):221-233. |
| [15] | Guan Kaishu.Relationship between photocatalytic activity,hydrophilicity and self-cleaning effect of TiO2/SiO2 films.Surface and Coatings Technology,2005,191(2/3):155-160. |
| [16] | Shirtcliffe N J,Mchale G,Newton M I,et al.Porous materials show superhydrophobic to superhydrophilic switching.Chemical Communications,2005,25:3135-3137. |
| [17] | Zorba V,Chen X B,Mao S S.Superhydrophilic TiO2 surface without photocatalytic activation.Applied Physics Letters,2010,96(9):093702-1-3. |
| [18] | Du Jing,Gao Yanfeng,Luo Hongjie,et al.Significant changes in phase-transition hysteresis for Ti-doped VO2 filmS prepared by polymer-assisted deposition.Solar Energy Materials & Solar Cells,2011,95(2):469-475. |
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