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摘要
Mechanoluminescence materials that emit light undermechanical stimulation have attracted widespread attention in sensing,anticounterfeiting, and imaging applications. In this study, a series ofSr1-xBixZnSO (0.001 <= x <= 0.1) samples was synthesized by the method ofhigh temperature solid-state reaction. It is worth noting that the distortiondegree of the SrO3S3octahedron was increased with increasing Bi3+concentration, and the color manipulated Sr1-xBixZnSO which can emitdifferent photoluminescence (blue to dark blue andfinally red) andmechanoluminescence (orange to red) colors is obtained. Moreover, thedeep traps can stably store and provide electronic supplements in shallowtraps released under mechanical stimulation. Therefore, devices made ofSrZnSO:Bi3+phosphor and polydimethylsiloxane (PDMS) can be used asthermo-mechano-opto three-mode anticounterfeiting. The ML intensity islinear to the external load and can be utilized for stress sensing or imaging.
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单位桂林理工大学; 上海大学
