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Massive red-shifting of Ce3+ emission by Mg2+ and Si4+ doping of YAG:Ce transparent ceramic phosphors

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Abstract

Y3MgxAl5−2xSixO12:Ce (YAMSG:Ce) transparent ceramics were successfully prepared for the first time by a vacuum sintering technique. Regulation of a wide range of spectra from 533 nm to 598 nm was accomplished in YAMSG:Ce transparent ceramics. The transmittance of the as-prepared YAMSG:Ce transparent ceramics can reach 78%. Moreover, the internal quantum efficiencies of Y2.985Mg0.5Al4Si0.5O12:Ce can reach 75%. Both a high luminous efficiency of up to 95 lm W−1 and a low correlated color temperature of 3762 K can be achieved in a Y2.985Mg0.5Al4Si0.5O12:Ce transparent ceramic as the ceramic was coupled with a commercial blue LED chip. The broad color area from yellow-green to orange-red region in the color coordinates diagram was recorded. YAMSG:Ce transparent ceramics prepared in the present work can offer scientists a new matrix to explore their applications in areas such as luminescent materials, scintillators, solid-state lasers and armor.

Graphical abstract: Massive red-shifting of Ce3+ emission by Mg2+ and Si4+ doping of YAG:Ce transparent ceramic phosphors

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Publication details

The article was received on 03 Aug 2018, accepted on 18 Sep 2018 and first published on 19 Sep 2018


Article type: Paper
DOI: 10.1039/C8TC03866J
Citation: J. Mater. Chem. C, 2018, Advance Article
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    Massive red-shifting of Ce3+ emission by Mg2+ and Si4+ doping of YAG:Ce transparent ceramic phosphors

    Q. Du, S. Feng, H. Qin, H. Hua, H. Ding, L. Jia, Z. Zhang, J. Jiang and H. Jiang, J. Mater. Chem. C, 2018, Advance Article , DOI: 10.1039/C8TC03866J

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