Nanoparticles of Cu2ZnSnS4 as performance enhancing additives for organic field-effect transistors

Kevin, Punarja and Malik, Mohammad Azad and O'Brien, Paul and Cameron, Joseph and Taylor, Rupert G. D. and Findlay, Neil J. and Inigo, Anto R. and Skabara, Peter J. (2016) Nanoparticles of Cu2ZnSnS4 as performance enhancing additives for organic field-effect transistors. Journal of Materials Chemistry. C, 4 (22). pp. 5109-5115. ISSN 2050-7526

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    Abstract

    The addition of oleylamine coated Cu2ZnSnS4 (CZTS) nanoparticles to solutions of an organic semiconductor used to fabricate organic field-effect transistors (OFETs) has been investigated. The oligothiophene-based small molecule 5T-TTF and the polymer poly(3-hexylthiophene) (P3HT) were each applied in the transistors with various concentrations of CZTS (5-20%). Atomic force microscopy (AFM) was applied to characterise the surface morphology of the OFETs. The use of 5 and 10 wt% of the CZTS nanoparticles in 5T-TTF and P3HT solutions, respectively, appears to be a simple and effective way of improving OFET performance.