期刊
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
卷 98, 期 2, 页码 490-494出版社
WILEY-BLACKWELL
DOI: 10.1111/jace.13295
关键词
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资金
- National Research Foundation of Korea - Korean Government [NRF-2013R1A2A2A04015089]
- MKE, Korea under RIS support program [NO15500002]
Ce3+-activated light emitting diode (LED) phosphors have been extensively examined for photoluminescence, and have been the focus of many detailed structural studies. However, reports of the decay curves of Ce3+-activated LED phosphors are rare. Although we have reported the decay behaviors of several Eu2+-activated LED phosphors such as Sr2SiO4, Sr2Si5N8, and CaAlSiN3, we have never conducted an in-depth study into the decay behavior for Ce3+-activated LED phosphors. For this study, we investigated the decay curves of well-known Ce3+-activated LED phosphors such as La3Si6N11 and Lu3Al5O12. Similar to Eu2+-activated LED phosphors, the decay behavior of Ce3+-activated LED phosphors was sensitive to the Ce3+ concentration and to the detection wavelength. There was active nonradiative energy transfer between the Ce3+ activators located at different sites.
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