title: An intense elastico-mechanoluminescence material CaZnOS:Mn2+ for sensing and imaging multiple mechanical stresses.
abstract: 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.
authors.affiliation: Interdisciplinary Graduate School of Engineering Science, Kyusyu University, Fukuoka 816-8580, Japan.
authors.forename: Jun-Cheng
authors.initials: JC
authors.lastname: Zhang
authors.forename: Chao-Nan
authors.initials: CN
authors.lastname: Xu
authors.forename: Sunao
authors.initials: S
authors.lastname: Kamimura
authors.forename: Yujin
authors.initials: Y
authors.lastname: Terasawa
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Yamada
authors.forename: Xusheng
authors.initials: X
authors.lastname: Wang