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Luminescence Characteristics of the Ce3+-Doped Pyrosilicates: The Case of La-Admixed Gd2Si2O7 Single Crystals

Authors :
Shunsuke Kurosawa
Martin Nikl
Akira Yoshikawa
Yasuhiro Shoji
Vitezslav Jary
Eva Mihokova
Alena Beitlerova
G.P. Pazzi
Source :
The Journal of Physical Chemistry C. 118:26521-26529
Publication Year :
2014
Publisher :
American Chemical Society (ACS), 2014.

Abstract

We study Ce3+ luminescence and scintillation characteristics in novel, high performing hosts among the oxide single crystal scintillators, the La-admixed Gd2Si2O7. Obtained characteristics are systematically compared with the earlier studied Lu2Si2O7 host. We determine the barrier height of the thermal ionization of the Ce3+ excited center, we address the effect of La-admixture on the physical characteristics, and we construct an energy level diagram of the material system. High scintillation efficiency, low afterglow, and the onset of Ce3+ excited state ionization appearing well above room temperature indicate a large potential of La-admixed Gd2Si2O7 in a variety of scintillating material applications.

Details

ISSN :
19327455 and 19327447
Volume :
118
Database :
OpenAIRE
Journal :
The Journal of Physical Chemistry C
Accession number :
edsair.doi...........e3c39a890fbee943da0e570a5b8080e8
Full Text :
https://doi.org/10.1021/jp5080384