| 光谱学与光谱分析 |
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| Structure and Luminescence Properties of Eu3+ Complexes with Benzoic Acid and 1,10-Phenanthroline Incorporated in SiO2,SiO2-B2O3 and SiO2-B2O3-Na2O Matrices |
| WANG Xi-gui1, WU Hong-ying1, ZHAO Si-qin1, WENG Shi-fu2, WU Jin-guang2 |
1. College of Chemical & Environmental Science, Inner Mongolia Normal University, Huhhot 010022, China
2. State Key Laboratory of Rare Earth Materials Chemistry and Application, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China |
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Abstract Eu3+ Complexes with benzoic acid and 1,10-phenanthroline incorporated in SiO2, SiO2-B2O3 and SiO2-B2O3-Na2O matrices were prepared via the sol-gel method. Eu-doped SiO2, SiO2-B2O3 and SiO2-B2O3-Na2O luminescence materials were synthesized. The luminescence of Eu3+ was studied with excitation spectra and emission spectra. Different forms of dopants could influence the luminescence properties. The structure of Eu-doped glass was studied by comparing IR, TEM and XRD. The results showed that after the materials were annealed at 1 000 ℃ the structure was very stable because ingredient was already removed totally. The emission spectrum showed that the typical optical spectrum of Eu3+ is 5D0→7Fj(j=1, 2) at 588 nm and 614 nm. Comparing EuCl3 with Eu3+ complexes with benzoic acid and 1,10-phenanthroline as dopant, the latter has strong luminescence property though it has small mass fraction. The luminescence intensity of Eu3+-doped SiO2-B2O3 glass material was weaker than that of Eu3+-doped SiO2 glass material, and the former’s spectrum showed that there were Si—O—B bonds. The luminescence intensity of Eu3+ was quenched by this kind of structure. The luminescence intensity of Eu3+-doped SiO2-B2O3-Na2O glass material was greatly increased, and the infrared spectrum illustrated that there was not vibration absorption of Si—O—B bonds. Probably Na replaced B, and Si—O—Na bonds formed. This kind of structure could enhance luminescence intensity of Eu3+ to some extend.
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Received: 2004-12-16
Accepted: 2005-04-30
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Corresponding Authors:
WANG Xi-gui
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| Cite this article: |
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WANG Xi-gui,WU Hong-ying,ZHAO Si-qin, et al. Structure and Luminescence Properties of Eu3+ Complexes with Benzoic Acid and 1,10-Phenanthroline Incorporated in SiO2,SiO2-B2O3 and SiO2-B2O3-Na2O Matrices [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2006, 26(05): 805-808.
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| URL: |
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https://www.gpxygpfx.com/EN/Y2006/V26/I05/805 |
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