Print Email Facebook Twitter Charge transport in high-performance ink-jet printed single-droplet organic transistors based on a silylethynyl substituted pentacene/insulating polymer blend Title Charge transport in high-performance ink-jet printed single-droplet organic transistors based on a silylethynyl substituted pentacene/insulating polymer blend Author Li, X. Smaal, W.T.T. Kjellander, C. van der Putten, B. Gualandris, K. Smits, E.C.P. Anthony, J. Broer, D.J. Blom, P.W.M. Genoe, J. Gelinck, G.H. Publication year 2011 Abstract We present a systematic study of the influence of material composition and ink-jet processing conditions on the charge transport in bottom-gate field-effect transistors based on blends of 6,13-bis(triisopropyl-silylethynyl) pentacene (TIPS-PEN) and polystyrene. After careful process optimizations of blending ratio and printing temperature we routinely can make transistors with an average mobility of 1 cm2/Vs (maximum value 1.5 cm 2/Vs), on/off ratio exceeding 107, and sharp turn-on in current (sub-threshold slopes approaching 60 mV/decade). These characteristics are superior to the TIPS-PEN only transistors. Using channel scaling measurements and scanning Kelvin probe microscopy, the sharp turn-on in current in the blends is attributed to a contact resistance that originates from a thin insulating layer between the injecting contacts and the semiconductor channel. © 2011 Elsevier B.V. All rights reserved. Subject Mechatronics, Mechanics & MaterialsHOL - HolstTS - Technical SciencesElectronicsIndustrial InnovationBlendContact barrierOrganic transistorSingle-droplet ink-jet printingSubstituted pentaceneAverage mobilityBlendBlending ratioContact barrierInk-jetMaterial compositionsMaximum valuesOn/off ratioOrganic transistorPentacenesProcessing conditionScanning Kelvin probe microscopySemiconductor channelsSubthresholdSystematic studyThin insulating layersBlendingDropsInkOrganic field effect transistorsPolymer blendsPolystyrenesTransistorsInk jet printing To reference this document use: http://resolver.tudelft.nl/uuid:0ba68a8d-f5a2-4109-aa2d-107fda08ec53 TNO identifier 445746 ISSN 1566-1199 Source Organic Electronics: physics, materials, applications, 12 (8), 1319-1327 Document type article Files To receive the publication files, please send an e-mail request to TNO Library.