Microscopic theory of elastico-mechanoluminescent smart materials
Microscopic theory of elastico-mechanoluminescent smart materials
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DOI：
10.1063/1.4862655
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发表时间：
2014-01
影响因子：
4
通讯作者：
B. P. Chandra;V. Chandra;P. Jha
中科院分区：
文献类型：
--
作者：
B. P. Chandra;V. Chandra;P. Jha
提出了陷阱中载流子的脱陷几率和寿命与压电场的关系的概念。在特定的压电场作用下，陷阱中的载流子变得不稳定，随着压电场的增大，会有更多的载流子脱离陷阱。脱陷的电子隧穿到与导带相邻的空穴俘获激活剂离子的能级，或者隧穿到导带。随后，电子-空穴复合诱导发光。利用这些概念，探索了弹性-机械发光智能材料的微观理论。本研究可能有助于定制不同应用所需的强烈弹性-机械发光材料。
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.