2007 NSTI Nanotechnology Conference and Trade Show - Nanotech 2007 - 10th Annual

Monolayer to Multilayers Nanostructural Evolution in N type Oligothiphenes: Implications for OFET Performance

G.R. Dholakia, A. Facchetti and T.J. Marks
ELORET / NASA Ames Research Center, US

self asembly, OFETs, STM

This study elucidates the nature of the interface between the organic semiconductor and source-drain electrodes in OFET devices. The pitted and disordered monolayer results in poor mobilities for bottom contact OFETs. Reorientation of the molecules in multilayers by 90° results in efficient stacking and overlap of pi orbitals with an associated increase in top contact OFET mobility by three orders of magnitude.

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Nanotech 2007 Conference Program Abstract


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