title: Novel mechano-luminescent sensors based on piezoelectric/electroluminescent composites.
abstract: A high-sensitivity mechano-luminescent sensor was fabricated on the basis of piezoelectric/electroluminescent composites. The working principle of this mechano-luminescent sensor was elucidated by analyzing the relationship between the piezoelectric-induced charges and the electroluminescent effects. When a stress is applied on the piezoelectric layer, electrical charges will be induced at both the top and bottom sides of the piezoelectric layer. The induced electrical charges will lead to a light output from the electroluminescent layer, thus producing a mechano-luminescence effect. By increasing the vibration strength or frequency applied, the mechano-luminescence output can be obviously enhanced. Mechano-luminescence sensors have potential in smart stress-to-light devices, such as foot-stress-distribution-diagnosis systems and dynamic-load-monitors for bridge hanging cables.
authors.affiliation: Department of Physics, Zhejiang Normal University, Jinhua, China. ymjia@zjnu.cn
authors.forename: Yanmin
authors.initials: Y
authors.lastname: Jia
authors.forename: Xiangling
authors.initials: X
authors.lastname: Tian
authors.forename: Zheng
authors.initials: Z
authors.lastname: Wu
authors.forename: Xiaojuan
authors.initials: X
authors.lastname: Tian
authors.forename: Jiayi
authors.initials: J
authors.lastname: Zhou
authors.forename: Yunzhang
authors.initials: Y
authors.lastname: Fang
authors.forename: Chenchen
authors.initials: C
authors.lastname: Zhu
mesh_terms: D019719:Diagnostic Equipment; D004563:Electrochemistry / Q000295:instrumentation*; D004568:Electrodiagnosis / Q000295:instrumentation*; D006801:Humans; D049449:Luminescence; D013314:Stress, Mechanical