Preparation and luminescent properties of new YAG:Ce3+ phosphor in glass (PIG) for white LED applications

Preparation and luminescent properties of new YAG:Ce3+ phosphor in glass (PIG) for white LED... 3+ A yellow-emitting phosphor-in-glass (PIG) material was synthesized by dispersing commercial YAG:Ce phosphor powder in homemade host glass prepared by melting-quenching method. The phase composition, microstructure and photolumi- nescence properties of PIG were investigated by means of XRD, SEM, fluorescence spectrophotometer and optoelectronic 3+ testing system. The results showed that the YAG:Ce phosphor particles were uniformly distributed and well preserved in glass matrix without any decomposition reaction. The bulk PIG can be efficiently exited by 460 nm to emit a broad yellow 3+ emission peak (530 nm) attributed to 5d → 4f transition of Ce ion. The optimal luminous property of PIG can be achieved 3+ when YAG:Ce phosphor concentration, melting temperature and thickness are 8 wt%, 950 °C and 1.5 mm, respectively. Under driving current of 540 mA, the luminous efficiency of the white LED device packaged by the as-prepared PIG and blue LED chip is 98 lm/W, and its color coordinate, color temperature and color rendering index are (0.300, 0.339), 7125 K and 71, respectively. This finding shows potential applications in white LEDs for the as-prepared PIG material. 1 Introduction To solve low thermal stability and luminescent degrada- tion, inorganic materials such as transparent ceramics and Nowadays, white light-emitting diodes (W-LEDs) have phosphor in glass (PIG) have http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Materials Science: Materials in Electronics Springer Journals

Preparation and luminescent properties of new YAG:Ce3+ phosphor in glass (PIG) for white LED applications

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Publisher
Springer US
Copyright
Copyright © 2018 by Springer Science+Business Media, LLC, part of Springer Nature
Subject
Materials Science; Optical and Electronic Materials; Characterization and Evaluation of Materials
ISSN
0957-4522
eISSN
1573-482X
D.O.I.
10.1007/s10854-018-9423-3
Publisher site
See Article on Publisher Site

Abstract

3+ A yellow-emitting phosphor-in-glass (PIG) material was synthesized by dispersing commercial YAG:Ce phosphor powder in homemade host glass prepared by melting-quenching method. The phase composition, microstructure and photolumi- nescence properties of PIG were investigated by means of XRD, SEM, fluorescence spectrophotometer and optoelectronic 3+ testing system. The results showed that the YAG:Ce phosphor particles were uniformly distributed and well preserved in glass matrix without any decomposition reaction. The bulk PIG can be efficiently exited by 460 nm to emit a broad yellow 3+ emission peak (530 nm) attributed to 5d → 4f transition of Ce ion. The optimal luminous property of PIG can be achieved 3+ when YAG:Ce phosphor concentration, melting temperature and thickness are 8 wt%, 950 °C and 1.5 mm, respectively. Under driving current of 540 mA, the luminous efficiency of the white LED device packaged by the as-prepared PIG and blue LED chip is 98 lm/W, and its color coordinate, color temperature and color rendering index are (0.300, 0.339), 7125 K and 71, respectively. This finding shows potential applications in white LEDs for the as-prepared PIG material. 1 Introduction To solve low thermal stability and luminescent degrada- tion, inorganic materials such as transparent ceramics and Nowadays, white light-emitting diodes (W-LEDs) have phosphor in glass (PIG) have

Journal

Journal of Materials Science: Materials in ElectronicsSpringer Journals

Published: Jun 5, 2018

References

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