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Scott Himmelberger, Javier Dacuña, Jonathan Rivnay, Leslie H. Jimison, Thomas McCarthy-Ward, Martin Heeney, Iain McCulloch, Michael F. Toney and Alberto Salleo Effects of Confinement on Microstructure and Charge Transport in High Performance Semicrystalline Polymer Semiconductors Advanced Functional Materials 23

Version of Record online: 23 NOV 2012 | DOI: 10.1002/adfm.201202408

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The effects of confinement on the morphology and charge transport properties of poly(2,5-bis(3-tetradecylthiophen-2-yl)thieno[3,2-b]thiophene) (PBTTT) are studied using quantitative X-ray diffraction and field-effect transistor measurements. Polymer crystallinity is found to limit charge transport in the thinnest films while crystalline texture and intergrain connectivity modulate carrier mobility in thicker films.

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