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Piezoluminescent devices by designing array structures
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DOI：10.1016/j.scib.2019.01.001.png)
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En 中文
Mechanoluminescence has attracted increasing attentions because it can convert the kinetic energy during human daily motions into light to be used in sensors and displays. However, its practical applications are still hindered by the weak brightness and limited color while under large forces. Herein, we developed novel piezoluminescent devices (PLDs) which could effectively emit visible light under low pressing forces through the stress-concentration and enhancing deformation on the basis of carefully-designed array structures. The emitting colors were also tunable by using bilayer luminescent film under different pressures. This work not only provides a new strategy to effectively harvest mechanical energy into light, but also presents a scalable, low-cost and color-tunable PLD which shows great potentials in various applications such as luminescent floors, shoes and stress-activated displays. (C) 2019 Science China Press. Published by Elsevier B.V. and Science China Press. All rights reserved.
Keyword:
Mechanoluminescence
Piezoluminescent device
Array structure
Color-tunable
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