Furan containing diketopyrrolopyrrole copolymers : synthesis, characterization, organic field effect transistor performance and photovoltaic properties

Sonar, Prashant, Singh, Samarendra P., Williams, Evan L., Li, Yuning, Soh, Mui Siang, & Dodabalapur, Ananth (2012) Furan containing diketopyrrolopyrrole copolymers : synthesis, characterization, organic field effect transistor performance and photovoltaic properties. Journal of Materials Chemistry, 22(10), pp. 4425-4435.

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In this work, we report design, synthesis and characterization of solution processable low band gap polymer semiconductors, poly{3,6-difuran-2-yl-2,5-di(2- octyldodecyl)-pyrrolo[3,4-c]pyrrole-1,4-dione-alt-phenylene} (PDPP-FPF), poly{3,6-difuran-2-yl-2,5-di(2-octyldodecyl)-pyrrolo[3,4-c]pyrrole-1, 4-dione-alt-naphthalene} (PDPP-FNF) and poly{3,6-difuran-2-yl-2,5-di(2- octyldodecyl)-pyrrolo[3,4-c]pyrrole-1,4-dione-alt-anthracene} (PDPP-FAF) using the furan-containing 3,6-di(furan-2-yl)pyrrolo[3,4-c]pyrrole-1,4(2H,5H)-dione (DBF) building block. As DBF acts as an acceptor moiety, a series of donor-acceptor (D-A) copolymers can be generated when it is attached alternatively with phenylene, naphthalene or anthracene donor comonomer blocks. Optical and electrochemical characterization of thin films of these polymers reveals band gaps in the range of 1.55-1.64 eV. These polymers exhibit excellent hole mobility when used as the active layer in organic thin-film transistor (OTFT) devices. Among the series, the highest hole mobility of 0.11 cm 2 V -1 s -1 is achieved in bottom gate and top-contact OTFT devices using PDPP-FNF. When these polymers are used as a donor and [70]PCBM as the acceptor in organic photovoltaic (OPV) devices, power conversion efficiencies (PCE) of 2.5 and 2.6% are obtained for PDPP-FAF and PDPP-FNF polymers, respectively. Such mobility values in OTFTs and performance in OPV make furan-containing DBF a very promising block for designing new polymer semiconductors for a wide range of organic electronic applications.

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ID Code: 75252
Item Type: Journal Article
Refereed: Yes
Keywords: Acceptor moieties, Active Layer, Bottom gate, Building blockes, Co-monomer, Diketopyrrolopyrroles, Donor-acceptors, Electrochemical characterizations, Low bandgap polymers, Mobility value, Organic electronics, Organic photovoltaic devices, Organic thin film transistors, Photovoltaic property, Polymer semiconductors, Power conversion efficiencies, Solution processable, Anthracene, Characterization, Conversion efficiency, Copolymers, Energy gap, Hole mobility, Naphthalene, Organic field effect transistors, Organic pollutants, Photovoltaic effects, Polymers, Thin film transistors, Aromatic compounds
DOI: 10.1039/c2jm14989c
ISSN: 0959-9428
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2012 The Royal Society of Chemistry
Deposited On: 25 Aug 2014 22:53
Last Modified: 29 Mar 2017 15:13

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