Mechanism of mechanical quenching and mechanoluminescence in phosphorescent CaZnOS:Cu  

作　　者：Dong Tu Chao-Nan Xu Yuki Fujio Akihito Yoshida 

机构地区：[1]National Institute of Advanced Industrial Science and Technology(AIST),Saga 841-0052,Japan [2]Interdisciplinary Graduate School of Engineering Sciences,Kyushu University,Fukuoka 816-8580,Japan [3]International Institute for Carbon-Neutral Energy Research(WPI-I2 CNER),Kyushu University,Fukuoka 819-0395,Japan

出　　处：《Light(Science & Applications)》2015年第1期65-71,共7页光（科学与应用)（英文版）

基　　金：This work was partly supported by a Grant-in-Aid for Scientific Research(A)(Grant number:25249100)from the Japan Society for the Promotion of Science.

摘　　要：This article reports a new phosphorescent material,CaZnOS:Cu,that exhibits two types of mechano-optical conversion:mechanical quenching and mechanoluminescence.An intense mechanical quenching of phosphorescence corresponding to mechanical stimuli can be achieved in CaZnOS:Cu within a short decay time period.Over time,it gradually changes to mechanoluminescence when a mechanical load is applied.We propose that the mechanical quenching and mechanoluminescence arise from the different roles of shallow and deep traps in CaZnOS:Cu.CaZnOS:Cu has promising applications in monitoring mechanical stress in industrial plants,structures,and living bodies.

关 键 词：mechanical quenching MECHANOLUMINESCENCE PHOSPHORESCENCE TRAPS 

分 类 号：TG1[金属学及工艺—金属学]