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A self-powered porous ZnS/PVDF-HFP mechanoluminescent composite film that converts human movement into eye-readable light

Abstract

This study reports on a self-powered mechanoluminescent flexible film that converts human movement into green, yellow, and white lights that are visible to the naked eye. The film is simply a highly porous composite material that was prepared using a piezoelectric polymer and ZnS luminescent powders. The highly effective mechanoluminescence capabilities stem from both the film’s porous structure and the strong interactions between poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) and ZnS particles. The porous film’s sensitivity helps to transfer mechanical disturbances into electrical energies and induces the electroluminescence of ZnS particles. The particle-film interactions induced a high β phase, which is the most effective piezoelectric phase, in the PVDF-HFP film. Similar to polymeric materials, the composite film is highly processable and can be written into arbitrary shapes or patterns using pipette or stamping techniques. Finger rubbings or ultrasonication make the mechanoluminescent patterns to become readable. This composite mechanoluminescent film provides a high potential for future applications in electronic skins, smart electronics, and information encryption techniques.

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Publication details

The article was received on 15 Jan 2018, accepted on 13 Feb 2018 and first published on 14 Feb 2018


Article type: Paper
DOI: 10.1039/C8NR00379C
Citation: Nanoscale, 2018, Accepted Manuscript
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    A self-powered porous ZnS/PVDF-HFP mechanoluminescent composite film that converts human movement into eye-readable light

    H. Li, Y. Zhang, H. Dai, W. Tong, Y. Zhou, J. Zhao and Q. An, Nanoscale, 2018, Accepted Manuscript , DOI: 10.1039/C8NR00379C

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