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Published on: August 23, 2012
Chemical complementarity in the contacts for nanoscale organic field-effect transistors
George S Tulevski1, Qian Miao, Ali Afzali
1Department of Chemistry and the Nanoscience Center, Columbia University, New York, NY 10027, USA.
Abstract:
This study describes the effect of covalent derivatization of source and drain electrodes with monolayers of organic semiconductors. These monolayers form a template on the metal surface and provide better electronic coupling between the electrode and the semiconductor. We see a large improvement in nanoscale (40-100 nm) transistors only when the monolayer presents functionality that is complementary to the chemical and electronic structure of the molecular semiconductor.

