Novel Mechano-Luminescent Sensors Based on Piezoelectric-Electroluminescent CompositesReportar como inadecuado




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1

Department of Physics, Zhejiang Normal University, Jinhua, 321004, China

2

College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China

3

School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, China

4

ACCIS Group, Aerospace Engineering, Faculty of Engineering, University of Bristol, Tyndall Avenue, Bristol BS8 1TH, UK





*

Author to whom correspondence should be addressed.



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. View Full-Text

Keywords: piezoelectric; mechano-luminescent sensors; composites piezoelectric; mechano-luminescent sensors; composites





Autor: Yanmin Jia 1,* , Xiangling Tian 1, Zheng Wu 2,3, Xiaojuan Tian 1, Jiayi Zhou 1, Yunzhang Fang 1 and Chenchen Zhu 4

Fuente: http://mdpi.com/



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