Microscopic theory of elastico-mechanoluminescent smart materials

作者：Chandra B P^*; Chandra V K; Jha Piyush

来源：Applied Physics Letters, 2014, 104(3): 031102.

DOI：10.1063/1.4862655

The concepts of piezoelectric field dependence of the detrapping probability and lifetime of charge carriers in traps are developed. The charge carriers in traps become unstable after a particular piezoelectric field whereby more number of charge carriers are detrapped with increasing piezoelectric field. The detrapped electrons tunnel to the energy level of the hole-captured activator ions lying adjacent to the conduction band or tunnel to conduction band. Subsequently, luminescence is induced by the electron-hole recombination. Using these concepts microscopic theory of elastico-mechanoluminescent smart materials is explored. Present study may be useful in tailoring intense elastico-mechanoluminescent materials needed for different applications.

• 出版日期2014-1-20