Combinatorial screening of the effect of temperature on the microstructure and mobility of a high performance polythiophene semiconductor

Leah A. Lucas, Dean M. DeLongchamp*, Brandon M. Vogel, Eric K. Lin, Michael J. Fasolka, Daniel A. Fischer, Iain Mcculloch, Martin Heeney, Ghassan E. Jabbour

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

30 Scopus citations

Abstract

Using a gradient combinatorial approach, the authors report the effects of temperature on the microstructure and hole mobility of poly(2,5-bis(3- dodecylthiophen-2yl)thieno[3,2-b]thiophene) thin films for application in organic field-effect transistors. The gradient heating revealed a detailed dependence on thermal history. Optimal heat treatment achieved mobilities as high as 0.3 cm2 V-1 s-1. Mobility enhancement coincides with an increase in crystal domain size and orientation, all of which occur abruptly at a temperature closely corresponding to a bulk liquid crystal phase transition.

Original languageEnglish (US)
Article number012112
JournalApplied Physics Letters
Volume90
Issue number1
DOIs
StatePublished - Jan 15 2007

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Fingerprint

Dive into the research topics of 'Combinatorial screening of the effect of temperature on the microstructure and mobility of a high performance polythiophene semiconductor'. Together they form a unique fingerprint.

Cite this