Analytic model for organic thin film transistors (OTFTs): effect of contact resistances application to the octithiopheneS. Mansouri, M. Mahdouani, A. Oudir, S. Zorai, S. Ben Dkhil, G. Horowitz and R. BourguigaEur. Phys. J. Appl. Phys., 48 3 (2009) 30401DOI: https://doi.org/10.1051/epjap/2009163