Photoluminescence and thermoluminescence of Ce3+ incorporated Y3Al5O12 synthesized by rapid combustion

Herein we report a feasible method to synthesize Ce3+ incorporated Y3Al5O12 phosphors by a rapid combustive reaction method. The rapid combustion only takes a relatively short duration at a lower temperature of 580°C. The phase identification study demonstrates that cubic Y3Al5O12 is obtained. The m...

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Bibliographic Details
Published in:Optik (Stuttgart) 2016-02, Vol.127 (3), p.1368-1371
Main Authors: Wu, Haoyi, Yang, Cheng, Zhang, Zhexu, Tang, Youhong
Format: Article
Language:English
Subjects:
Afterglow
Combustion
Y3Al5O12: Ce phosphors
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Summary:Herein we report a feasible method to synthesize Ce3+ incorporated Y3Al5O12 phosphors by a rapid combustive reaction method. The rapid combustion only takes a relatively short duration at a lower temperature of 580°C. The phase identification study demonstrates that cubic Y3Al5O12 is obtained. The mean crystal size decreases when Ce content exceeds 10mol%. The samples show a yellow emission feature at around 530nm. A red shift is observed with the increase of Ce3+ concentration, which is due to the further splitting of 5d levels of Ce3+. The thermoluminescence as well as the afterglow are observed, which are due to the liberated carriers from traps created by lattice defects. The rapid combustion process is advantageous to the creation of defects, which may cause the generation of afterglow.
ISSN:0030-4026
1618-1336
DOI:10.1016/j.ijleo.2015.10.228