An intense elastico-mechanoluminescence material CaZnOS:Mn2+ for sensing and imaging multiple mechanical stresses

作者：Zhang, Jun-Cheng^*; Xu, Chao-Nan; Kamimura, Sunao; Terasawa, Yujin; Yamada, Hiroshi; Wang, Xusheng

来源：Optics Express, 2013, 21(11): 12976-12986.

DOI：10.1364/OE.21.012976

• LUMINESCENT PROPERTIES
• DYNAMIC VISUALIZATION
• LIGHT
• TEMPERATURE
• DEVICES
• FILM

The elastico-mechanoluminescence (EML) properties of CaZnOS:Mn2+ are investigated. The CaZnOS:Mn2+/epoxy resin composite can simultaneously "feel" (sense) and "see" (image) various types of mechanical stress over a wide energy and frequency range (ultrasonic vibration, impact, friction and compression) as an intense red emission (610 nm) from Mn2+ ions. Further, the accurate linear relation between emission intensity and different stress parameters (intensity, energy and deformation rate) are confirmed. The EML mechanism is explained using a piezoelectrically induced trapped carrier excitation mode. All the results imply that CaZnOS:Mn2+ has potential as a stress probe to sense and image multiple mechanical stresses and decipher the stress intensity distribution.

• 出版日期2013-6-3
• 单位同济大学; 青岛大学