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

doi:10.1088/1674-1056/26/12/128103

Abstract

Color conversion glass ceramics are prepared by cosintering borosilicate glass frits and green 0.06Ce:Y_2.94(Al_1-xGa_x)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:Y_2.94(Al_1-xGa_x)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:Y_2.94(Al_1-xGa_x)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:Y_2.94(Al_1-xGa_x)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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Optical properties of wavelength-tunable green-emitting color conversion glass ceramics

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