Mechanically Tunable Single-Walled Carbon Nanotube Films as a Universal Material for Transparent and Stretchable Electronics

Evgenia P. Gilshteyn, Stepan A. Romanov, Daria S. Kopylova, Georgy V. Savostyanov, Anton S. Anisimov, Olga E. Glukhova, Albert G. Nasibulin

    Research output: Contribution to journalArticlepeer-review

    34 Citations (Scopus)

    Abstract

    Soft, flexible, and stretchable electronic devices provide novel integration opportunities for wearable and implantable technologies. Despite the existing efforts to endow electronics with the capability of large deformation, the main technological challenge is still in the absence of suitable materials for the manufacturing of stretchable electronic circuits and devices with active (sensitive) and passive (stable) components. Here, we present a universal material, based on single-walled carbon nanotube (SWCNT) films deposited on a polydimethylsiloxane (PDMS) substrate, which can act as a material being both sensitive and insensitive to strain. The diverse performance of SWCNT/PDMS structures was achieved by two simple dry-transfer fabrication approaches: SWCNT film deposition onto the as-prepared PDMS and on the prestretched PDMS surface. The correlation between applied strain, microstructural evolution, and electro-optical properties is discussed on the basis of both experimental and computational results. The SWCNT/PDMS material with the mechanically tunable performance has a small relative resistance change from 0.05 to 0.07, while being stretched from 10 to 40% (stable electrode applications). A high sensitivity of 20.1 of the SWCNT/PDMS structures at a 100% strain was achieved (strain sensing applications). Our SWCNT/PDMS structures have superior transparency and conductivity compared to the ones reported previously, including the SWCNT/PDMS structures, obtained by wet processes.

    Original languageEnglish
    Pages (from-to)27327-27334
    Number of pages8
    JournalACS Applied Materials and Interfaces
    Volume11
    Issue number30
    DOIs
    Publication statusPublished - 31 Jul 2019

    Keywords

    • coarse-grained molecular dynamics
    • dry-transfer
    • polydimethylsiloxane
    • strain sensor
    • stretchable electrodes
    • SWCNTs

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