1. Hydrothermal Fabrication and Luminescence Properties of One-Dimensional TiO2:Eu3+ Spindlelike Nanorods.
- Author
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Zhang, Hongguang, Sheng, Ye, Zheng, Keyan, Zhou, Xiuqing, Shi, Zhan, Xu, Xuechun, and Zou, Haifeng
- Subjects
NANOROD synthesis ,LUMINESCENCE ,CITRIC acid ,ETHYLENEDIAMINE ,FIELD emission displays ,X-ray diffraction ,FOURIER transform infrared spectroscopy ,TRANSMISSION electron microscopy - Abstract
Highly crystalline and uniform TiO
2 :Eu3+ spindlelike nanorods have been successfully synthesized through a facile hydrothermal route with citric acid (H3 Cit) and ethanediamine (en) as the assistant agents for the first time. X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM), selected-area electron diffraction (SAED), and photoluminescence (PL) spectroscopy were utilized to characterize the samples. In the synthetic process, the dosages of ethanediamine and citric acid are important parameters that affect the morphology and size of the final products. A possible formation process of the samples has been proposed in detail. The existence of Eu3+ sites in the TiO2 nanorods was proved by site-selective spectroscopy. Furthermore, the TiO2 :Eu3+ spindlelike nanorods exhibit bright red (Eu3+ ,5 D0 →7 F2 ) luminescence under ultraviolet (UV) excitation; therefore, they may find potential applications in fluorescent lamps and field-emission displays (FEDs). [ABSTRACT FROM AUTHOR]- Published
- 2014
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