Picture of virus under microscope

Research under the microscope...

The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs.

Strathprints serves world leading Open Access research by the University of Strathclyde, including research by the Strathclyde Institute of Pharmacy and Biomedical Sciences (SIPBS), where research centres such as the Industrial Biotechnology Innovation Centre (IBioIC), the Cancer Research UK Formulation Unit, SeaBioTech and the Centre for Biophotonics are based.

Explore SIPBS research

Incorporation of fused tetrathiafulvalene units in a DPP-terthiophene copolymer for air stable solution processable organic field effect transistors

Cortizo-Lacalle, Diego and Arumugam, Sasikumar and Elmasly, Saadeldin E. T. and Kanibolotsky, Alexander L. and Findlay, Neil J. and Inigo, Anto Regis and Skabara, Peter J. and Skabara, Peter (2012) Incorporation of fused tetrathiafulvalene units in a DPP-terthiophene copolymer for air stable solution processable organic field effect transistors. Journal of Materials Chemistry, 22 (22). pp. 11310-11315. ISSN 0959-9428

Full text not available in this repository. (Request a copy from the Strathclyde author)

Abstract

A new terthiophene-diketopyrrolopyrrole (DPP) copolymer has been synthesised in which the central thiophene ring within the terthiophene repeat unit is attached to a fused tetrathiafulvalene (TTF). The electrochemical and absorption data of the polymer, p(DPP-TTF), are presented, and the multi-redox states are investigated by UV-vis spectroelectrochemistry. Bottom gate/bottom contact field effect transistors were fabricated from films of p(DPP-TTF) annealed at 200 degrees C. The material, which under these conditions forms a fibrous structure, exhibited hole mobilities of 4 +/- 2 x 10(-2) cm(2) V-1 s(-1) with an on/off ratio of 1 x 10(4). The transistors showed little sign of degradation over 15 days of exposure under ambient conditions, demonstrating excellent air-stability. This characteristic is attributed to the incorporation of the TTF unit into the polymer.