High Performance Organic Transistors Using Small Molecule Semiconductors and High Permittivity Semiconducting Polymers

• Published in: Advanced functional materials Vol. 24; no. 20; pp. 3067 - 3074
• Main Authors: McCall, Keri L., Rutter, Simon R., Bone, Elizabeth L., Forrest, Neil D., Bissett, James S., Jones, Julie D. E., Simms, Michael J., Page, Aaron J., Fisher, Raymond, Brown, Beverley A., Ogier, Simon D.
• Format: Journal Article
• Language: English
• Published: Blackwell Publishing Ltd 01-05-2014
• Subjects: binder polymers; Dielectric constant; Formulations; high mobility; Oligomers; organic semiconductors; organic transistors; Permittivity; phase separation; Semiconductor devices; Semiconductors; Standard deviation; Variability
• ISSN: 1616-301X; 1616-3028
• DOI: 10.1002/adfm.201303336

High mobility organic semiconductor formulations with excellent uniformity across large area substrates are prepared via the use of formulations containing small molecule and high permittivity semiconducting oligomers. The use of these high‐k (k > 3.3) oligomers allows control of the wetting via the manipulation of the surface energy of the substrate being coated. Organic thin film transistors results with mobilities of up to 5 cm2 V‐1 s‐1, standard deviation <10 %, on/off ratios of 109 are presented.
High mobility organic semiconductor formulations with excellent uniformity are prepared by combining a small molecule and high permittivity semiconducting oligomers. The use of these high‐k (k > 3.3) oligomers allows control of the performance by manipulation of the surface energy of the substrate. Organic thin film transistors results with mobilities of 5 cm2 V‐1 s‐1, standard deviation <10% and on/off ratios of 109 are presented.