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    Langmuir–Schaefer films of a polyaniline–gold nanoparticle composite material for applications in organic memristive devices

    Year: 2011

    Journal: RSC Adv., 2011, 1 (8), 1537-1541, 20131009

    Authors: Tatiana Berzina, Konstantin Gorshkov, Andrea Pucci, Giacomo Ruggeri, Victor Erokhin

    Organizations: Department of Physics, University of Parma, Viale Usberti 7A, Parma 43124, Italy; CNR-IMEM, Parco Area delle Scienze 37/A, 43124 Parma, Italy; Moscow Institute of Electronic Technology (Technical University), Bld. 5, Pas. 4806, Moscow 124498, Russia; Department of Chemistry and Industrial Chemistry, University of Pisa, Via Risorgimento 35, Pisa 56126, Italy; NEST, CNR – Istituto Nanoscienze, piazza San Silvestro 12, I-56127 Pisa, Italy

    Langmuir–Shaefer films of a polyaniline–gold nanoparticle composite were fabricated and characterized. The thickness of each deposited monolayer, determined with AFM, was found to be about 0.8 nm. The film morphology was studied by SEM, revealing the presence of embedded spherical-shaped gold nanoparticles of about 5–10 nm in diameter. The fabricated films were used as the active channel of the organic memristor. Its electric characterisation has revealed new phenomena, such as an increased working voltage range and sigmoidal voltage current characteristics that were connected to the charge trapping.