3,6-Di(furan-2-yl)pyrrolo[3,4-c]pyrrole-1,4(2H,5H)-dione and bithiophene copolymer with rather disordered chain orientation showing high mobility in organic thin film transistors
Li, Y., Sonar, Prashant, Singh, S. P., Zeng, W., & Soh, M. S. (2011) 3,6-Di(furan-2-yl)pyrrolo[3,4-c]pyrrole-1,4(2H,5H)-dione and bithiophene copolymer with rather disordered chain orientation showing high mobility in organic thin film transistors. Journal of Materials Chemistry, 21(29), pp. 10829-10835.
Pyrrolo[3,4-c]pyrrole-1,4(2H,5H)-dione or diketopyrrolopyrrole (DPP) is a useful electron-withdrawing fused aromatic moiety for the preparation of donor-acceptor polymers as active semiconductors for organic electronics. This study uses a DPP-furan-containing building block, 3,6-di(furan-2-yl)pyrrolo[3,4- c]pyrrole-1,4(2H,5H)-dione (DBF), to couple with a 2,2′-bithiophene unit, forming a new donor-acceptor copolymer, PDBFBT. Compared to its structural analogue, 3,6-di(thiophen-2-yl)pyrrolo[3,4-c]pyrrole-1,4(2H,5H)-dione (DBT), DBF is found to cause blue shifts of the absorption spectra both in solution and in thin films and a slight reduction of the highest occupied molecular orbital (HOMO) energy level of the resulting PDBFBT. Despite the fact that its thin films are less crystalline and have a rather disordered chain orientation in the crystalline domains, PDBFBT shows very high hole mobility up to 1.54 cm 2 V-1 s-1 in bottom-gate, top-contact organic thin film transistors.
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|Item Type:||Journal Article|
|Keywords:||Aromatic moieties, Bithiophenes, Blue shift, Building blockes, Chain orientation, Crystalline domains, Diketopyrrolopyrroles, Donor-acceptor copolymers, Donor-acceptor polymers, Electronwithdrawing, High mobility, Highest occupied molecular orbital energy levels, Organic electronics, Organic thin film transistors, Structural analogue, Aromatic polymers, Copolymerization, Copolymers, Crystalline materials, Film preparation, Hole mobility, Molecular orbitals, Nitrogen compounds, Organic pollutants, Thin film devices, Thin film transistors, Thin films, Transistors, High electron mobility transistors|
|Divisions:||Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Copyright Owner:||© 2011 The Royal Society of Chemistry.|
|Deposited On:||28 Oct 2014 00:27|
|Last Modified:||30 Oct 2014 00:21|
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