Femtosecond laser-based modification of PDMS to electrically conductive silicon carbide

Yasutaka Nakajima, Shuichiro Hayashi, Akito Katayama, Nikolay Nedyalkov, Mitsuhiro Terakawa

    Research output: Contribution to journalArticle

    5 Citations (Scopus)

    Abstract

    In this paper, we experimentally demonstrate femtosecond laser direct writing of conductive structures on the surface of native polydimethylsiloxane (PDMS). Irradiation of femtosecond laser pulses modified the PDMS to black structures, which exhibit electrical conductivity. Fourier-transform infrared (FTIR) and X-ray diffraction (XRD) results show that the black structures were composed of β-silicon carbide (β-SiC), which can be attributed to the pyrolysis of the PDMS. The electrical conductivity was exhibited in limited laser power and scanning speed conditions. The technique we present enables the spatially selective formation of β-SiC on the surface of native PDMS only by irradiation of femtosecond laser pulses. Furthermore, this technique has the potential to open a novel route to simply fabricate flexible/stretchable MEMS devices with SiC microstructures.

    Original languageEnglish
    Article number558
    JournalNanomaterials
    Volume8
    Issue number7
    DOIs
    Publication statusPublished - 2018 Jul 22

    Keywords

    • Femtosecond laser
    • Laser direct writing
    • Polydimethylsiloxane
    • Silicon carbide

    ASJC Scopus subject areas

    • Materials Science(all)
    • Chemical Engineering(all)

    Fingerprint Dive into the research topics of 'Femtosecond laser-based modification of PDMS to electrically conductive silicon carbide'. Together they form a unique fingerprint.

  • Cite this