High-Performance OTFTs Using Surface-Modified Alumina Dielectrics
The Journal of Physical Chemistry B2003Vol. 107(24), pp. 5877–5881
Citations Over TimeTop 1% of 2003 papers
Tommie W. Kelley, Larry D. Boardman, Timothy D. Dunbar, Dawn V. Muyres, Mark J. Pellerite, Terry P. Smith
Abstract
We show novel and selective means to modify the dielectric surfaces in organic TFTs. Modification schemes include alkylphosphonic acid monolayers that have a strong affinity for alumina surfaces. Monolayers form robust, extremely uniform thin films and are deposited through simple spin-coating with a dilute solution of the monolayer precursor in solvent. Adding monolayers to organic TFTs has resulted in polycrystalline devices with mobilities nearly equal to single-crystal values while maintaining acceptable values of other device parameters (for example, the threshold voltage, on/off ratio, and subthreshold slope) required for fully functional integrated circuits.
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