TITLE

Photochemical control of the carrier mobility in pentacene-based organic thin-film transistors

AUTHOR(S)
Marchl, Marco; Golubkov, Andrej W.; Edler, Matthias; Griesser, Thomas; Pacher, Peter; Haase, Anja; Stadlober, Barbara; Belegratis, Maria R.; Trimmel, Gregor; Zojer, Egbert
PUB. DATE
May 2010
SOURCE
Applied Physics Letters;5/24/2010, Vol. 96 Issue 21, p213303
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We use a photoreactive interfacial layer of poly(endo,exo-bis(2-nitrobenzyl) bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylate) (PBHND) between the gate dielectric and the pentacene active layer to tune the effective hole mobility in organic thin film transistors over approximately one order of magnitude. This can be explained by the photoconversion of the PBHND layer changing its surface energy and thus strongly impacting pentacene growth. A linear relationship between the mobility and the grain size is observed.
ACCESSION #
51059279

 

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