Recovery phenomenon of mechanoluminescence from Ca2Al2SiO7:Ce by irradiation with ultraviolet light

被引：83

作者：

Akiyama, M ^{[1
]}

Xu, CN ^{[1
]}

Matsui, H ^{[1
]}

Nonaka, K ^{[1
]}

Watanabe, T ^{[1
]}

机构：

[1] Kyushu Natl Ind Res Inst, Saga 8410052, Japan

来源：

APPLIED PHYSICS LETTERS | 1999年 / 75卷 / 17期

关键词：

D O I：

10.1063/1.125073

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have investigated the mechanoluminescence (ML) from Ca2Al2SiO7:Ce. The ML is clearly visible to the naked eye in the atmosphere. The luminescence integrated intensity is about 400 times as high as that of crystal sugar. The ML center has been identified as the Ce3+ ion from spectra of the ML and also from the photoluminescence studies of Ca2Al2SiO7:Ce. The ML intensity decreases on repetitive application of stress but is completely recovered by irradiation with ultraviolet light. It is suggested that the ML mechanism arises from the movement of dislocations and recombination between electrodes and holes released from these traps which are associated with the Ce3+ centers. (C) 1999 American Institute of Physics. [S0003-6951(99)01743-X].

引用

页码：2548 / 2550

页数：3

共 24 条

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