کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
733453 | 1461649 | 2013 | 5 صفحه PDF | دانلود رایگان |

Uniform TiO2:Eu3+ nanobelts have been successfully prepared by a simple hydrothermal method without any surfactant, catalyst or template. The as-synthesized products were characterized by X-ray diffraction, transmission electron microscopy and Fourier Transform Infrared Spectrophotometry. X-ray diffraction results demonstrate that all the diffraction peaks of the samples annealed at 500 °C can be well indexed to the pure anatase-phase TiO2. Under ultraviolet excitation, TiO2:Eu3+ nanobelts exhibit red emission corresponding to the 5D0–7F2 transition of the Eu3+ ions, and the photoluminescence intensity is the strongest when calcination temperature is 500 °C. It is expected that the TiO2:Eu3+ nanobelts can be used as novel semiconductor luminescence materials.
► Uniform TiO2:Eu3+ nanobelts have been prepared by a simple hydrothermal method.
► Crystallinity, morphology and photoluminescence of TiO2:Eu3+nanobelts change with the annealing temperature.
► PL intensity achieves the strongest when calcination temperature is at 500 °C.
Journal: Optics & Laser Technology - Volume 49, July 2013, Pages 33–37