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Chin. Phys. B, 2017, Vol. 26(12): 128103    DOI: 10.1088/1674-1056/26/12/128103
INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY Prev   Next  

Optical properties of wavelength-tunable green-emitting color conversion glass ceramics

Yang Li(李杨)1,2,3, Li-Li Hu(胡丽丽)1, Bo-Bo Yang(杨波波)4, Ming-Ming Shi(石明明)4, Jun Zou(邹军)4
1. Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China;
3. School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, China;
4. School of Science, Shanghai Institute of Technology, Shanghai 201418, China
Abstract  

Color conversion glass ceramics are prepared by cosintering borosilicate glass frits and green 0.06Ce:Y2.94(Al1-xGax)5O12 phosphors. The crystal structures, the influence of Ga concentration on the photoluminescence (PL), and reliability properties of the color conversion glass ceramics are investigated. The PL emission wavelengths of 0.06Ce:Y2.94(Al1-xGax)5O12 glass ceramics show blue shift from 545 nm to 525 nm with increasing Ga content (x value) under excited at 460 nm. Reliability test results show that the quantum yield (QY) of 0.06Ce:Y2.94(Al1-xGax)5O12 glass ceramics decreases from 70.60% to 59.06% with x value increasing from 0.15 to 0.35 under the ambient condition of 85℃/RH85% for the exposure time of 168 h. And the quantum yield (QY) of 0.06Ce:Y2.94(Al1-xGax)5O12 glass ceramics decreases from 65.13% to 52.23% after being soaked into boiled water for 4 h. The finding reveals that the addition of Ga can deteriorate the reliability of the color conversion glass ceramics.

Keywords:  color conversion glass ceramic      photoluminescence wavelength      quantum yield      reliability property  
Received:  21 July 2017      Revised:  13 September 2017      Accepted manuscript online: 
PACS:  81.05.Kf (Glasses (including metallic glasses))  
  42.70.Ce (Glasses, quartz)  
Fund: 

Project supported by the National Natural Science Foundation of China (Grant No. 51302171), the Science and Technology Commission of Shanghai Municipality, China (Grant No. 14500503300), and the Natural Science Foundation of Shanghai, China (Grant No. 12ZR1430900).

Corresponding Authors:  Yang Li, Yang Li     E-mail:  liyang123@sit.edu.cn;hulili@siom.ac.cn

Cite this article: 

Yang Li(李杨), Li-Li Hu(胡丽丽), Bo-Bo Yang(杨波波), Ming-Ming Shi(石明明), Jun Zou(邹军) Optical properties of wavelength-tunable green-emitting color conversion glass ceramics 2017 Chin. Phys. B 26 128103

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