Piezo-phototronic effect-induced dual-mode light and ultrasound emissions from ZnS:Mn/PMN-PT thin-film structures
Yang Zhang1, Guanyin Gao, Helen L W Chan
1Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, PR China.
Advanced Materials (Deerfield Beach, Fla.)
|March 8, 2012
Abstract:
Electric-field-controllable luminescence of a ZnS:Mn/PMN-PT system is demonstrated. The light-emission of ZnS:Mn is caused by the piezoelectric potential, resulting from the converse piezoelectric effect of the PMN-PT substrate. Simultaneous generation of light and ultrasound waves is observed in this single system, which offers great potential to develop a dual-modal source combing light and ultrasonic waves for various applications.
