Graphene oxide reduction by solid-state laser irradiation for bolometric applications

Vladislav A. Kondrashov, Nikolay S. Struchkov, Roman Yu Rozanov, Vladimir K. Nevolin, Daria S. Kopylova, Albert G. Nasibulin

    Research output: Contribution to journalArticlepeer-review

    9 Citations (Scopus)

    Abstract

    We present a method for reduced graphene oxide (GO) patterning on the surface of GO film by a 445 nm solid-state laser with the adjustable fluence from 0.2-20 kJ cm-2. We demonstrate that the optimal argon concentration in air to obtain good quality reduced GO films is 90%. Varying the laser irradiation energy density allows controlling the resistance and I G/I D and I G/I 2D ratios of Raman peak intensities. As a result, we demonstrate the possibility of forming of conductive patterns with a sheet resistance of 189 Ohm/□ and ∼1 μm film thickness by a local reduction of the GO. The fabricated structures reveal excellent bolometric response with a high speed and sensitivity to the radiation in the visible wavelength region.

    Original languageEnglish
    Article number035301
    JournalNanotechnology
    Volume29
    Issue number3
    DOIs
    Publication statusPublished - 19 Jan 2018

    Keywords

    • bolometer application
    • graphene oxide reduction
    • Raman spectroscopy
    • solid-state laser patterning

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