Synthesis, solid-state, and charge-transport properties of conjugated polythiophene-S,S-dioxides (pages 48–56)
Justin E. Cochran, Elizabeth Amir, Kulandaivelu Sivanandan, Sung-Yu Ku, Jung Hwa Seo, Brian A. Collins, John R. Tumbleston, Michael F. Toney, Harald Ade, Craig J. Hawker and Michael L. Chabinyc
Article first published online: 11 SEP 2012 | DOI: 10.1002/polb.23167
The synthesis of semiconducting polymers with low lying lowest unoccupied molecular orbital levels has drawn much attention owing to the need for stable n-type polymers. Here, detailed characterization is reported of a thiophene-S,S-dioxide polymer that has a lower optical and electrical band gap than the analogous thiophene polymers. This new polymer forms crystalline thin films with slipped stacked packing similar to its oligomers. The impact of the thiophene-S,S-dioxide group on electrical performance is presented.