Synthesis and optical properties of TiO2 nanoparticles |
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| Authors: | Yin Zhao Xiuhong Liu Feng Gu Haibo Jiang Wei Shao Ling Zhang Ying He |
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| Affiliation: | Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China |
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| Abstract: | Ultrafine TiO2 particles have been synthesized successfully by a facile gas flame combustion method. The synthesized sample is characterized by X-ray diffraction (XRD), transmission electron micrograph (TEM), Fourier transform infrared (FTIR), and photoluminescence (PL) spectroscopy. The as-prepared TiO2 nanoparticles appear to be a single anatase crystalline phase and the diameter is about 9 nm. Besides a sharp emission at 398 nm originating from the radiative annihilation of excitions, a weak broad band at about 434 nm from the defect-related emission is also discussed. |
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| Keywords: | 78.55.Hx 78.67.Bf 81.07.Bc |
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