期刊
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
卷 11, 期 39, 页码 8774-8778出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/b907065f
关键词
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资金
- NSFC [50672098]
- Science & Technology Projects of Fujian [2008F3114]
- CAS [KJCX2-YW-M05]
- FJIRSM [SZD07004, 2006K02, 2006KL002]
- Innovation Program of CAS and SKLSC [20080039]
Eu3+-doped transparent glass ceramics containing In2O3 nano-crystals were prepared by melt quenching and subsequent heating. X-ray diffraction analysis, transmission electron microscope observation, and photoluminescence excitation spectra demonstrated that In2O3 nano-particles sized 3-6 nm homogenously distributed among the glass matrix. Under excitation of these nano-particles, Eu3+ luminescence was found greatly enhanced due to the energy transfer from the oxygen-vacancy-related defects of In2O3 to Eu3+ ions. The Eu3+ content dependent energy transfer efficiency was evaluated, and the value reached 67% for 1 mol% Eu3+ doped glass ceramics. Low temperature emission spectra demonstrated that the Eu3+ ions of the glass ceramic locate mainly in the glass matrix.
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