Furan substituted diketopyrrolopyrrole (DBF) combined with benzothiadiazole based polymer semiconductor PDPP-FBF has been synthesized and evaluated as an ambipolar semiconductor in organic thin-film transistors. Hole and electron mobilities as high as 0.20 cm2 V−1 s−1 and 0.56 cm2 V−1 s−1, respectively, are achieved for PDPP-FBF. © 2012 The Royal Society of Chemistry.

Samarendra Pratap Singh

Physics

(SoNS) School of Natural Sciences

Sonar P.

Foong T.R.B.

Li Y.

Dodabalapur A.

Fulltext

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Shiv Nadar University

Chemical Communications

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. © 2012 The Royal Society of Chemistry.

Journal of Materials Chemistry

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

Advanced Materials

High-Performance Ambipolar Diketopyrrolopyrrole-Thieno[3,2-b]thiophene Copolymer Field-Effect Transistors with Balanced Hole and Electron Mobilities

Chem. Sci.

Low band gap selenophene–diketopyrrolopyrrolepolymers exhibiting high and balanced ambipolar performance in bottom-gate transistors

J. Mater. Chem.

Selenophene-DPP donor–acceptor conjugated polymer for high performance ambipolar field effect transistor and nonvolatile memory applications

Journal of the American Chemical Society

High Performance Weak Donor–Acceptor Polymers in Thin Film Transistors: Effect of the Acceptor on Electronic Properties, Ambipolar Conductivity, Mobility, and Thermal Stability

A furan-containing conjugated polymer for high mobility ambipolar organic thin film transistors