[1] [1] Diebold U. The surface science of titanium dioxide[J]. Surf. Sci. Rep.,2003,48(5-8): 53-229.

[3] [3] Tang H,Prasad K,Sanjines R,et al. Electrical and optical properties of TiO2 anatase thin films[J]. J. Appl. Phys.,1994,75(4): 2042-2047.

[4] [4] Hitosugi T,Furubayashi Y,et al. Ta-doped anatase TiO2 epitaxial film as transparent conducting oxide[J]. Jpn. J. Appl. Phys.,2005,44(34): 1063-1065.

[5] [5] Dittrich T,Zinchuk V,Skryshevskyy V,et al. Electrical transport in passivated Pt/TiO2/Ti Schottky diodes[J]. J. Appl. Phys.,2005,98(10): 104501.

[7] [7] Ding K,Miao Z,et al. Shape and size controlled synthesis of anatase nanocrystals with the assistance of ionic liquid[J]. Langmuir,2010,2(7): 5129-5134.

[8] [8] Tompsett G A,Bowmaker G A,et al. The Raman spectrum of brookite,TiO2(Pbca,Z=8)[J]. J. Raman Spectrosc.,1995,2(1): 57-62.

[9] [9] Sanjines R,Tang H,et al. Electronic structure of anatase TiO2 oxide[J]. J. Appl. Phys.,1994,75(6): 2945-2951.

[10] [10] Vasilic R,Stojadinovi S,et al. One-step preparation and photocatalytic performance of vanadium doped TiO2 coatings[J]. Mater. Chem. Phys.,2015,151: 337-344.

[11] [11] Khanna P K,Singh N,Charan S. Synthesis of nano-particles of anatase TiO2 and preparation of its optically transparent film in PVA[J]. Mater. Lett.,2007,61(25): 4725-4730.