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http://dx.doi.org/10.5012/bkcs.2014.35.8.2277

The Molecular Structures of Poly(3-hexylthiophene) Films Determine the Contact Properties at the Electrode/Semiconductor Interface  

Park, Yeong Don (Department of Energy and Chemical Engineering, Incheon National University)
Publication Information
Abstract
The contact properties between gold and poly(3-hexylthiophene) (P3HT) films having either of two distinct molecular orientations and orderings were investigated. Thermal treatment increased the molecular ordering of P3HT and remarkably reduced the contact resistance at the electrode/semiconductor interface, which enhanced the electrical performance. This phenomenon was understood in terms of a small degree of metal penetration into the P3HT film as a result of the thermal treatment, which formed a sharp interface at the contact interface between the gold electrode and the organic semiconductor.
Keywords
Metal penetration; Transfer line method; Organic transistor; Contact resistance;
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