Journal
OPTICAL MATERIALS EXPRESS
Volume 9, Issue 8, Pages 3333-3341Publisher
OPTICAL SOC AMER
DOI: 10.1364/OME.9.003333
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Funding
- Bureau of International Cooperation, ChineseAcademy of Sciences [181231KYSB20160005]
- National Key R&D Program of China [2017YFB0403700]
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(Tb, Gd)(3)Al5O12:Ce3+ (Ce: TGAG) transparent phosphor ceramics with different concentrations of Gd-doping were fabricated for the first time through a solid state reaction. The maximum emission peak of Ce3+ shifts from 550 nm to 570 nm in Ce: TGAG and the emission intensity of Ce3+ was also greatly increased. With an increasing red component in fluorescence spectrum, a low color correlated temperature (CCT) of 3681 K and a high color-rendering index (CRI) of 74.7 were obtained in the packed LED device based on InGaN chips and Ce: TGAG ceramics at the Gd-doping concentration of 30%, which indicates the great potential of Ce: TGAG ceramics in the application of warm white light illumination. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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