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Citation: You Hong-Peng, Hong Guang-Yan. Vibrational Spectrum and Luminescence Properties of the System Al₂O₃-B₂O₃-Eu₂O₃[J]. Acta Physico-Chimica Sinica, ;1999, 15(02): 150-155. doi: 10.3866/PKU.WHXB19990211 shu

Vibrational Spectrum and Luminescence Properties of the System Al₂O₃-B₂O₃-Eu₂O₃

1.
Changchun Institute of Applied Chemistry,The Chinese Academy of Sciences,Changchun 130022

Received Date: 14 April 1998
Available Online: 15 February 1999

The system Al2O3-B2O3-Eu2O3, with Al/B ratio varying from 4.5 to 2 and Eu/(Al+B)=0.02, was synthesized by solid state reaction. The vibrational spectra of the sys tem Al2O3-B2O3 were investigated. It was found that no definite change in the regions of 12001000cm-1 due to the absorption BO4 groups with decreasing Al/B ratio, indicating no Al3+ion was substituted by Eu3+ ions and other changs revealed that there was an amorphous phase and Eu3+ ions may dope into the amorphous phase. The studies on the luminescent properties of the system Al2O3-B2O3 also show that Eu3+ ions dope into amorphous phase. The investigations on the phonon sideband of Eu3+ indicate that electron-phonon coupling strength decreases with Al/B ratio change from 3 to 2, leading to the non-radiative decay rate decreases and the Eu3+ennssion intensity increase.
- Eu3+ ions,
- Vibrational spectra,
- Luminescent properties of Eu3+ ion,
- Phonon sideband
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Vibrational Spectrum and Luminescence Properties of the System Al2O3-B2O3-Eu2O3

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通讯作者: 陈斌, bchen63@163.com

Vibrational Spectrum and Luminescence Properties of the System Al₂O₃-B₂O₃-Eu₂O₃