Mechanoluminescence of SrAl2O4:Eu2+, Dy3+ under cyclic loading

被引：38
|
作者：
Sohn, Kee-Sun [1 ]
Park, Woon Bae [1 ]
Timilsina, Suman [2 ]
Kim, Ji Sik [3 ]
机构：
[1] Sejong Univ, Fac Nanotechnol & Adv Mat Engn, Seoul 143747, South Korea
[2] Kyungpook Natl Univ, Sch Automot Engn, Sangju 742711, South Korea
[3] Kyungpook Natl Univ, Sch Nano & Adv Mat Engn, Sangju 742711, South Korea
来源：
OPTICS LETTERS | 2014年 / 39卷 / 06期
基金：
新加坡国家研究基金会;
关键词：
TRIBOLUMINESCENCE; DEFORMATION; CRYSTALS; STRESS;
D O I：
10.1364/OL.39.001410
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The mechanoluminescence (ML) of SrAl2O4:Eu2+, Dy3+ (SAO) has been of particular interest based on the possibility that these materials could be used as nondestructive, reproducible stress (or load) sensors. However, there has been no in-depth study of ML under a cyclic load. It was found that a cyclic load generated harmonics in the ML response. The second harmonic term exhibiting a doubled frequency was significant, but the others could be ignored. In addition, hysteresis behavior was observed in the ML and was examined by comparison with the hysteresis that is typical in piezoelectricity. (C) 2014 Optical Society of America
引用
收藏
页码：1410 / 1413
页数：4
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