Influence of Eu, Dy co-doped strontium aluminate composition on mechanoluminescence intensity

Morito Akiyama; Chao Nan Xu; Yun Liu; Kazuhiro Nonaka; Tadahiko Watanabe

doi:10.1016/S0022-2313(01)00419-7

Influence of Eu, Dy co-doped strontium aluminate composition on mechanoluminescence intensity

Morito Akiyama, Chao Nan Xu, Yun Liu, Kazuhiro Nonaka, Tadahiko Watanabe

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

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Abstract

We have investigated the mechanoluminescence (ML) of Eu, Dy co-doped strontium aluminates. The SrAl₂O₄ and Sr3Al₂O₆ indicate high ML intensity, which is clearly visible to the naked eye in the air. SrAl₂O₄:Eu, Dy shows the highest ML intensity and has many filled traps, high quantum efficiency and moderate stiffness. On the other hand, Sr₃Al₂O₆:Eu, Dy does not have many filled traps and high relative quantum efficiency, but Sr₃Al₂O₆:Eu, Dy shows relatively high ML intensity. Sr₃Al₂O₆:Eu, Dy indicates low stiffness. Sr₃Al₂O₆:Eu, Dy has many filled traps and high relative quantum efficiency, but Sr₃Al₂O₆:Eu, Dy shows very small ml intensity. Sr₃Al₂O₆:Eu, Dy indicates high stiffness. This suggests that the stiffness is an important factor for the ML intensity of the Eu, Dy co-doped strontium aluminate system.

Original language	English
Pages (from-to)	13-18
Number of pages	6
Journal	Journal of Luminescence
Volume	97
Issue number	1
DOIs	https://doi.org/10.1016/S0022-2313(01)00419-7
Publication status	Published - Apr 2002
Externally published	Yes

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@article{e98432d41f214ec98236060802575f4f,

title = "Influence of Eu, Dy co-doped strontium aluminate composition on mechanoluminescence intensity",

abstract = "We have investigated the mechanoluminescence (ML) of Eu, Dy co-doped strontium aluminates. The SrAl2O4 and Sr3Al2O6 indicate high ML intensity, which is clearly visible to the naked eye in the air. SrAl2O4:Eu, Dy shows the highest ML intensity and has many filled traps, high quantum efficiency and moderate stiffness. On the other hand, Sr3Al2O6:Eu, Dy does not have many filled traps and high relative quantum efficiency, but Sr3Al2O6:Eu, Dy shows relatively high ML intensity. Sr3Al2O6:Eu, Dy indicates low stiffness. Sr3Al2O6:Eu, Dy has many filled traps and high relative quantum efficiency, but Sr3Al2O6:Eu, Dy shows very small ml intensity. Sr3Al2O6:Eu, Dy indicates high stiffness. This suggests that the stiffness is an important factor for the ML intensity of the Eu, Dy co-doped strontium aluminate system.",

keywords = "Dislocation movement, Mechanoluminescence, Stiffness, Strontium aluminate",

author = "Morito Akiyama and Xu, {Chao Nan} and Yun Liu and Kazuhiro Nonaka and Tadahiko Watanabe",

year = "2002",

month = apr,

doi = "10.1016/S0022-2313(01)00419-7",

language = "English",

volume = "97",

pages = "13--18",

journal = "Journal of Luminescence",

issn = "0022-2313",

publisher = "Elsevier B.V.",

number = "1",

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TY - JOUR

T1 - Influence of Eu, Dy co-doped strontium aluminate composition on mechanoluminescence intensity

AU - Akiyama, Morito

AU - Xu, Chao Nan

AU - Liu, Yun

AU - Nonaka, Kazuhiro

AU - Watanabe, Tadahiko

PY - 2002/4

Y1 - 2002/4

N2 - We have investigated the mechanoluminescence (ML) of Eu, Dy co-doped strontium aluminates. The SrAl2O4 and Sr3Al2O6 indicate high ML intensity, which is clearly visible to the naked eye in the air. SrAl2O4:Eu, Dy shows the highest ML intensity and has many filled traps, high quantum efficiency and moderate stiffness. On the other hand, Sr3Al2O6:Eu, Dy does not have many filled traps and high relative quantum efficiency, but Sr3Al2O6:Eu, Dy shows relatively high ML intensity. Sr3Al2O6:Eu, Dy indicates low stiffness. Sr3Al2O6:Eu, Dy has many filled traps and high relative quantum efficiency, but Sr3Al2O6:Eu, Dy shows very small ml intensity. Sr3Al2O6:Eu, Dy indicates high stiffness. This suggests that the stiffness is an important factor for the ML intensity of the Eu, Dy co-doped strontium aluminate system.

AB - We have investigated the mechanoluminescence (ML) of Eu, Dy co-doped strontium aluminates. The SrAl2O4 and Sr3Al2O6 indicate high ML intensity, which is clearly visible to the naked eye in the air. SrAl2O4:Eu, Dy shows the highest ML intensity and has many filled traps, high quantum efficiency and moderate stiffness. On the other hand, Sr3Al2O6:Eu, Dy does not have many filled traps and high relative quantum efficiency, but Sr3Al2O6:Eu, Dy shows relatively high ML intensity. Sr3Al2O6:Eu, Dy indicates low stiffness. Sr3Al2O6:Eu, Dy has many filled traps and high relative quantum efficiency, but Sr3Al2O6:Eu, Dy shows very small ml intensity. Sr3Al2O6:Eu, Dy indicates high stiffness. This suggests that the stiffness is an important factor for the ML intensity of the Eu, Dy co-doped strontium aluminate system.

KW - Dislocation movement

KW - Mechanoluminescence

KW - Stiffness

KW - Strontium aluminate

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U2 - 10.1016/S0022-2313(01)00419-7

DO - 10.1016/S0022-2313(01)00419-7

M3 - Article

SN - 0022-2313

VL - 97

SP - 13

EP - 18

JO - Journal of Luminescence

JF - Journal of Luminescence

IS - 1

ER -

Influence of Eu, Dy co-doped strontium aluminate composition on mechanoluminescence intensity

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