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Rewritable, light-driven recordings in a full-colour fluorescent polydimethylsiloxane elastomer

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Abstract

Current approaches to demonstrate light-driven writing enabling multiple “write–erase” cycles are mostly based on photochromic materials requiring complex synthesis processes. Here, we show a new approach to realize rewritable, light-driven recordings in conventional dye-incorporating poly(dimethylsiloxane) (PDMS) by using a laser-induced photobleaching technique. Upon selective photobleaching of red dyes, the PDMS film emits patterned letters of different colours (blue or green) from their backgrounds. We also found that the diffusion of dye molecules into the bleached region promoted a self-healing characteristic that could erase the patterned letters, which enables us to rewrite different letters using the same PDMS. This novel method of light-driven writing can be applied effectively in many research fields, including secure printing and optical storage devices, and will significantly advance future writing applications.

Graphical abstract: Rewritable, light-driven recordings in a full-colour fluorescent polydimethylsiloxane elastomer

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Publication details

The article was received on 14 Aug 2018, accepted on 04 Sep 2018 and first published on 05 Sep 2018


Article type: Paper
DOI: 10.1039/C8TC04064H
Citation: J. Mater. Chem. C, 2018, Advance Article
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    Rewritable, light-driven recordings in a full-colour fluorescent polydimethylsiloxane elastomer

    S. Song, H. Takezoe and S. M. Jeong, J. Mater. Chem. C, 2018, Advance Article , DOI: 10.1039/C8TC04064H

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