4.8 Article

Piezo-Phototronic Effect-Induced Dual-Mode Light and Ultrasound Emissions from ZnS:Mn/PMN-PT Thin-Film Structures

Journal

ADVANCED MATERIALS
Volume 24, Issue 13, Pages 1729-1735

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201104584

Keywords

luminescence; piezoelectrics; PMN-PT; thin films; strain

Funding

  1. Hong Kong Polytechnic University [RPR6]
  2. Niche Areas Grant [J-BB9R]

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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.

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