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Surface Microstructure Characterization of Sol-gel Derived Porous TiO_2 Thin Films 被引量:1

Surface Microstructure Characterization of Sol-gel Derived Porous TiO_2 Thin Films
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摘要 Porous TiO2 thin films were prepared from alkoxide solutions with and without polyethylene glycol (PEG) by sol-get route on soda lime glass, and were characterized by atomic force microscopy (AFM), transmission electron microscopy (TEM) and X-ray diffraction (XRD). The results show that TiO2 film prepared from precursor solution without PEG is composed of spherical particles of about 100 nm and several nanometer mesoporous pores. With the increase of the amount of PEG added to the precursor solution, the diameter and the depth of the pores in the resultant films increas on the decomposition of PEG during heat-treatment, which lead to them increase of the surface roughness of the films. XRD and TEM results show that the single anatase phase is precipitated and there are some orientation effects in (101) direction. Porous TiO2 thin films were prepared from alkoxide solutions with and without polyethylene glycol (PEG) by sol-get route on soda lime glass, and were characterized by atomic force microscopy (AFM), transmission electron microscopy (TEM) and X-ray diffraction (XRD). The results show that TiO2 film prepared from precursor solution without PEG is composed of spherical particles of about 100 nm and several nanometer mesoporous pores. With the increase of the amount of PEG added to the precursor solution, the diameter and the depth of the pores in the resultant films increas on the decomposition of PEG during heat-treatment, which lead to them increase of the surface roughness of the films. XRD and TEM results show that the single anatase phase is precipitated and there are some orientation effects in (101) direction.
出处 《Rare Metals》 SCIE EI CAS CSCD 2001年第3期157-163,共7页 稀有金属(英文版)
基金 The work was partially supported by a grant from the National Natural Science Foundation of China and the ResearchGrants Counc
关键词 sol-gel route porous TiO2 thin films surface microstructure CHARACTERIZATION sol-gel route porous TiO2 thin films surface microstructure characterization
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