Laser direct writing of graphitic nanocrystals on polydimethylsiloxane by laser-induced graphitization

Shuichiro Hayashi; Craig B. Arnold; Mitsuhiro Terakawa

doi:10.1117/12.3009652

13 March 2024 Laser direct writing of graphitic nanocrystals on polydimethylsiloxane by laser-induced graphitization

Shuichiro Hayashi, Craig B. Arnold, Mitsuhiro Terakawa

Proceedings Volume PC12874, Nanoscale and Quantum Materials: From Synthesis and Laser Processing to Applications 2024; PC128740H (2024) https://doi.org/10.1117/12.3009652
Event: SPIE LASE, 2024, San Francisco, California, United States

Abstract

In this work, carbonaceous structures composed of graphitic nanocrystals, namely electrically conductive turbostratic graphite or fluorescent graphene quantum dots (GQDs), were patterned on polydimethylsiloxane (PDMS) by laser-induced graphitization. By exploiting the electrical conductivity of the turbostratic graphite and the elasticity of PDMS, a small and sensitive piezoresistive pressure sensor was realized. On the other hand, by exploiting the fluorescence of GQDs and the transparency of PDMS, an anticounterfeiting security tag containing hidden information was realized. This work indicates the implications of using laser-induced graphitization towards the fabrication of novel polymer-based electrical and optical devices.

Conference Presentation

Citation Download Citation

Shuichiro Hayashi, Craig B. Arnold, and Mitsuhiro Terakawa "Laser direct writing of graphitic nanocrystals on polydimethylsiloxane by laser-induced graphitization", Proc. SPIE PC12874, Nanoscale and Quantum Materials: From Synthesis and Laser Processing to Applications 2024, PC128740H (13 March 2024); https://doi.org/10.1117/12.3009652

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