Microstructure and optical and electrical properties of TiO 2 nanotube thin films prepared by spin-coating method

Micro & nano letters

article

Tana Bao¹  Jun Ning¹  Altan Bolag¹  Narengerile Narengerile¹ 

[1] College of Physics and Electronic Information, Inner Mongolia Normal University;Inner Mongolia Key Laboratory for Physics and Chemistry of Functional Materials, Inner Mongolia Normal University

关键词: surface morphology;    spin coating;    titanium compounds;    crystallisation;    visible spectra;    semiconductor thin films;    semiconductor growth;    atomic force microscopy;    annealing;    transmission electron microscopy;    nanofabrication;    semiconductor nanotubes;    liquid phase deposition;    electrical resistivity;    surface roughness;    semiconductor materials;    spin-coating method;    microstructure;    optical properties;    electrical properties;    titanium dioxide nanotube thin films;    hydrothermal method;    annealing;    high-resolution transmission electron microscopy;    crystallisation;    lattice plane;    〈100〉 direction;    anatase {200};    atomic force microscopy;    surface morphology;    surface roughness;    visible light transmittance;    square resistance;    temperature 150.0 degC;    temperature 500.0 degC;    time 1.0 hour;    TiO2;   

DOI  :  10.1049/mnl.2018.5642

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

Titanium dioxide nanotubes prepared by hydrothermal method and the TiO 2 films and TiO 2 nanotube film were prepared by spin-coating method. The TiO 2 nanotube film and a part of TiO 2 film were annealed at 150°C for 1 h, while the another part of TiO 2 film was annealed at 500°C. The high-resolution transmission electron microscopy analysis indicated that the TiO 2 nanotubes prepared by hydrothermal method have been crystallised and the lattice plane indices corresponded to anatase {200}, and the TiO 2 nanotube grown along the 〈100〉 direction. The atomic force microscopy results show that the surface morphology of the TiO 2 film annealed at 150°C was smooth and uniform (0.62 nm in roughness) compared to the surface morphology of TiO 2 film annealed at 500°C (roughness is 2.41 nm). For the TiO 2 nanotube film, the nanotube fragments were uniformly dispersed in the base and the complete films have been prepared and the roughness was reached to 6.4 nm. The optical properties showed that the visible light transmittance of the TiO 2 nanotube film was larger (larger than 95%) than the TiO 2 film. The electrical properties showed that square resistance of TiO 2 nanotube film was smaller than that of TiO 2 film.

【 授权许可】

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