Articles you may be interested inThickness modulation effects of Al2O3 capping layers on device performance for the top-gate thin-film transistors using solution-processed poly(4-vinyl phenol)/Zn-Sn-O gate stacks

We have investigated effect of polymer on solution-processed organic thin-film transistors (TFTs) with polymer-blend semiconductors. Organic TFTs made from a solution of 6,13-bis(triisopropylsilylethynyl)-pentacene with a poly(-methylstyrene) (PaMS) molecular weight of 20 k or above, exhibited mobility around 0.1 cm 2 /(VÁs). On the other hand, the organic TFTs with a PaMS molecular weight of 2 k or with a poly(isobutyl methacrylate), exhibited much lower mobility. This can be explained in terms of the structure and crystallinity of the films. The results of film structure can be explained by applying the Flory-Huggins theory.

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