Enhancement of afterglow in SrAl 2O 4:Eu 2+ long-lasting phosphor with swift heavy ion irradiation

Tianzhuo Zhan; Chao Nan Xu; Hiroshi Yamada; Yujin Terasawa; Lin Zhang; Hiroshi Iwase; Masayoshi Kawai

doi:10.1039/c1ra00426c

Enhancement of afterglow in SrAl ₂O ₄:Eu ²⁺ long-lasting phosphor with swift heavy ion irradiation

Tianzhuo Zhan, Chao Nan Xu, Hiroshi Yamada, Yujin Terasawa, Lin Zhang, Hiroshi Iwase, Masayoshi Kawai

Research output: Contribution to journal › Article › peer-review

23 Citations (Scopus)

Abstract

We present a novel approach for improving the afterglow of long-lasting phosphors with swift heavy ion irradiation. The afterglow of famous long-lasting phosphor SrAl ₂O ₄:Eu ²⁺ was dramatically enhanced with swift heavy ion irradiation. Furthermore, it was found that the enhancement was dependent on the electronic stopping power as well as the irradiation fluence. Thermoluminescence analyses revealed that the SHI irradiation had no significant influence on the trap depth, but increased the trap density in the phosphor. In addition, the mechanism underlying afterglow enhancement phenomenon was discussed.

Original language	English
Pages (from-to)	328-332
Number of pages	5
Journal	RSC Advances
Volume	2
Issue number	1
DOIs	https://doi.org/10.1039/c1ra00426c
Publication status	Published - 2012 Jan 7
Externally published	Yes

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)

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abstract = "We present a novel approach for improving the afterglow of long-lasting phosphors with swift heavy ion irradiation. The afterglow of famous long-lasting phosphor SrAl 2O 4:Eu 2+ was dramatically enhanced with swift heavy ion irradiation. Furthermore, it was found that the enhancement was dependent on the electronic stopping power as well as the irradiation fluence. Thermoluminescence analyses revealed that the SHI irradiation had no significant influence on the trap depth, but increased the trap density in the phosphor. In addition, the mechanism underlying afterglow enhancement phenomenon was discussed.",

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AU - Zhan, Tianzhuo

AU - Xu, Chao Nan

AU - Yamada, Hiroshi

AU - Terasawa, Yujin

AU - Zhang, Lin

AU - Iwase, Hiroshi

AU - Kawai, Masayoshi

PY - 2012/1/7

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AB - We present a novel approach for improving the afterglow of long-lasting phosphors with swift heavy ion irradiation. The afterglow of famous long-lasting phosphor SrAl 2O 4:Eu 2+ was dramatically enhanced with swift heavy ion irradiation. Furthermore, it was found that the enhancement was dependent on the electronic stopping power as well as the irradiation fluence. Thermoluminescence analyses revealed that the SHI irradiation had no significant influence on the trap depth, but increased the trap density in the phosphor. In addition, the mechanism underlying afterglow enhancement phenomenon was discussed.

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