Strong electric field modulation of transport in PVDF/MWCNT nanocomposite near the percolation threshold

A nanocomposite comprising of multiwalled carbon nanotubes (MWCNT) embedded in ferroelectric Poly(vinylidene fluoride) PVDF polymer matrix is examined for electric field induced transport modulation. The pulsed laser deposition (PLD) grown thin films of the nanocomposite with different MWCNT content were characterized. When used as a channel layer in a field effect transistor configuration, a strong electric field modulation of the transport was realized just below the percolation threshold. We believe that this nanocomposite non-percolating channel concept can provide several opportunities for FET devices for organic electronics.

► Pulse laser deposition of thin films of PVDF/MWCNT nanocomposites.
► Field effect device based on pulse laser deposited PVDF/MWCNT as channel layer.
► A strong electric field modulation observed for composition just below percolation.