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Citation: HE Gui-Ping, ZHANG Jiang, YAO Ruo-He. Preparation, Structure and Photoluminescence of Er³⁺and Ce³⁺/Ce⁴⁺ Doped β-BaB₂O₄ Nanorods[J]. Acta Physico-Chimica Sinica, ;2010, 26(03): 685-690. doi: 10.3866/PKU.WHXB20100234 shu

Preparation, Structure and Photoluminescence of Er³⁺and Ce³⁺/Ce⁴⁺ Doped β-BaB₂O₄ Nanorods

1.
Department of Physics, School of Science, South China University of Technology, Guangzhou 510641, P. R. China; 2School of Electronic and Information Engineering, South China University of Technology, Guangzhou 510641, P. R. China

Received Date: 13 October 2009
Available Online: 4 January 2010

β-BaB2O4 (β-BBO) nanorods, rare earth ion Er3+ doped (β-BBO:Er3+) and Er3+, Ce3+/Ce4+ co-doped (β-BBO:Er3+/Ce3+/Ce4+) nanorods were synthesized by the cetyltrimethylammoniumbromide (CTAB) assisted hydrothermal method using Ba(NO3)2, NaBH4, Er2O3, and CeO2 as raw materials. The as-prepared products were studied by X-ray powder diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, Raman spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectra (XPS), and photoluminescence (PL) spectroscopy. Results indicate that the structure of the β-BBO nanorods doped with Er3+, Ce3+/Ce4+ was unchanged. The obtained nanorods have uniformdiameters of 10-20 nmand lengths of 200-500 nm. Upon excitation with 400 nm light, the doped β-BBO nanorods exhibit a strong green light emission. PL spectra indicate that the emission bands at 515 and 542 nm correspond to the 2H11/2→4I15/2 and 4S3/2→4I15/2 transitions of Er3+, respectively. In the samples, the cerium dopant exists as Ce3+ and Ce4+. Ce3+ sensitizes Er3+ and enhances the luminescence intensity of the doped nanorods remarkably and energy transfer fromCe3+→Er3+ was observed.
- Photoluminescence,
- β-BaB2O4,
- Nanorods,
- Rare earth ion,
- Doping
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沈阳化工大学材料科学与工程学院沈阳 110142

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Preparation, Structure and Photoluminescence of Er3+ and Ce3+/Ce4+ Doped β-BaB2O4 Nanorods

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通讯作者: 陈斌, bchen63@163.com

Preparation, Structure and Photoluminescence of Er³⁺and Ce³⁺/Ce⁴⁺ Doped β-BaB₂O₄ Nanorods