Aerosol feeding of catalyst precursor for CNT synthesis and highly conductive and transparent film fabrication

Olivier Reynaud, Albert G. Nasibulin, Anton S. Anisimov, Ilya V. Anoshkin, Hua Jiang, Esko I. Kauppinen

    Research output: Contribution to journalArticlepeer-review

    50 Citations (Scopus)

    Abstract

    A mixture of single-walled and double-walled carbon nanotubes (CNTs) was synthesised by an aerosol CVD (floating catalyst) method for fabrication of highly conductive and transparent films. The feedstock solution contained ferrocene as a catalyst particle precursor, toluene and ethylene as carbon sources and thiophene as a promoter was introduced in the reactor in a hydrogen atmosphere and heated up in the temperature range of 1000-1200. °C. The product was collected downstream of the reactor by filtering the flow in the form of thin films with adjustable thicknesses (transmittance) and subsequently transferred on a desirable substrate by a dry transfer technique. This method allowed us to fabricate excellent quality CNT films with a high optoelectronic performance: with a sheet resistance of 86. Ω/sq. at the transmittance of T= 90%. To our best knowledge, for the first time the CNT transparent and conductive thin films were fabricated from direct filtration of gas phase grown CNTs using hydrocarbon as a carbon source.

    Original languageEnglish
    Pages (from-to)134-140
    Number of pages7
    JournalChemical Engineering Journal
    Volume255
    DOIs
    Publication statusPublished - 1 Nov 2014

    Keywords

    • Carbon nanotube
    • Conductive
    • Flexible
    • ITO replacement
    • Transparent

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