Fabrication and characterization for innate super-hydrophilic SiO2 thin films
- 材料学院－会议论文 
Distinguished with photoinduced super-hydrophilic inorganic thin films, non-photoinduced innate super-hydrophilic SiO2 thin films were successfully fabricated in this work. The SiO2 sol was prepared by acid-base two-step sol-gel method. The mix solution containing SiO2 sol and polyethylene glycol (PEG) was coated on glass substrate and then went through thermal treatment to obtain innate super-hydrophilic SiO2 thin films. The films were characterized by atomic force microscopy (AFM), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR) and contact angle meter. The results show that the surface concave-convex microstructure and the hydroxyl content are the factors that endow the SiO2 coating films with innate super-hydrophilic property. ? (2013) Trans Tech Publications, Switzerland.