| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1267975 | Organic Electronics | 2010 | 5 Pages |
Abstract
Organic field-effect transistors (OFETs) based on regioregular poly(3-hexyl-thiophene) (P3HT) have been demonstrated with improved ambient-air stability. Substrates of untreated SiO2, octadecyltrichlorosilane (OTS)-treated SiO2, and SiO2 coated with a thin layer of polymethylmethacrylate (PMMA) were compared in terms of OFET electric performance and air stability. We are able to show virtually no change in transistor on/off ratio over a 3-day period in ambient air in OFETs fabricated on SiO2-PMMA substrates. We also studied devices based on OTS-treated PMMA interface. By analyzing the surface morphology, possible mechanisms of the enhanced air stability are discussed.
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Authors
Yanmin Sun, Xiaofeng Lu, Shiwei Lin, Jeff Kettle, Stephen G. Yeates, Aimin Song,