Intense visible light emission from stress-activated ZrO2:Ti

被引：52

作者：

Akiyama, M ^{[1
]}

Xu, CN ^{[1
]}

Nonaka, K ^{[1
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Inst Struct & Engn Mat, Saga 8410052, Japan

来源：

APPLIED PHYSICS LETTERS | 2002年 / 81卷 / 03期

关键词：

D O I：

10.1063/1.1494463

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have investigated the luminescence phenomena from stress-activated ZrO2:Ti. The luminescence is clearly visible to the naked eye in the atmosphere. The luminescence center has been identified as the Ti4+ ion from spectra of the mechanoluminescence and also from photoluminescence studies of ZrO2:Ti. The mechanoluminescence intensity decreases on repetitive application of stress but recovers completely on irradiation with ultraviolet light. ZrO2 is an n-type semiconductor and has electron traps. It is suggested that the mechanoluminescence mechanism arises from the movement of dislocations and recombination between electrons and holes released from these traps which are associated with the Ti4+ centers. (C) 2002 American Institute of Physics.

引用

页码：457 / 459

页数：3

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