A benzothiadiazole end capped donor–acceptor based small molecule for organic electronics

Sonar, Prashant, Williams, Evan L., Singh, Samarendra P., Manzhos, Sergei, & Dodabalapur, Ananth (2013) A benzothiadiazole end capped donor–acceptor based small molecule for organic electronics. Physical Chemistry Chemical Physics, 15(40), pp. 17064-17069.

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A benzothiadiazole end-capped small molecule 3,6-bis(5-(benzo[c][1,2,5] thiadiazol-4-yl)thiophen-2-yl)-2,5-bis(2-butyloctyl)pyrrolo[3,4-c]pyrrole-1, 4(2H,5H)-dione (BO-DPP-BTZ) using a fused aromatic moiety DPP (at the centre) is designed and synthesized. BO-DPP-BTZ is a donor-acceptor-donor (D-A-D) structure which possesses a band gap of 1.6 eV and exhibits a strong solid state ordering inferred from ∼120 nm red shift of the absorption maxima from solution to thin film. Field-effect transistors utilizing a spin coated thin film of BO-DPP-BTZ as an active layer exhibited a hole mobility of 0.06 cm 2 V-1 s-1. Solution-processed bulk heterojunction organic photovoltaics employing a blend of BO-DPP-BTZ and [70]PCBM demonstrated a power conversion efficiency of 0.9%.

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ID Code: 75258
Item Type: Journal Article
Refereed: Yes
DOI: 10.1039/c3cp52929k
ISSN: 1463-9076
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2013 the Owner Societies.
Deposited On: 25 Aug 2014 23:01
Last Modified: 03 Oct 2014 00:10

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