Jump to main content
Jump to site search


Novel conjugated polymers based on bis-dithieno[3,2-b;2′,3′-d]pyrrole vinylene donor and diketopyrrolopyrrole acceptor: side chain engineering in organic field effect transistors

Author affiliations

Abstract

Two new donor–acceptor conjugated polymers, i.e. PB(C12DTP)V-DTDPP-C12 and PB(C12DTP)V-DTDPP-C12C8, were prepared by the Stille coupling of (E)-1,2-bis(4-dodecyl-6-(trimethylstannyl)-4H-dithieno[3,2-b:2′,3′-d]pyrrol-2-yl)ethene (Sn-B(C12DTP)V) with 3,6-bis(5-bromothiophen-2-yl)-2,5-didodecylpyrrolo[3,4-c]pyrrole-1,4-dione (Br-DTDPP-C12) and 3,6-bis(5-bromo-thiophen-2-yl)-2,5-bis(2-octyldodecyl)pyrrolo[3,4-c]pyrrole-1,4-dione (Br-DTDPP-C8C12), respectively. The molecular weight and thermal properties of the obtained polymers were characterized by gel permeation chromatography (GPC), differential scanning calorimetry (DSC) and thermogravimetry (TG). Their optical and electrochemical properties were analyzed by UV-vis-NIR spectroscopy and cyclic voltammetry (CV). The morphological and molecular-packing features of the polymers were characterized by optical microscopy and atomic force microscopy (AFM), UV polarization spectroscopy and grazing incidence X-ray diffraction (GIXD) to determine the relationship between the structural morphology and the performance. PB(C12DTP)V-DTDPP-C12C8 with branched C12C8 side chains on DPP units shows much higher hole mobility (1.2 cm2 V−1 s−1) than 0.69 cm2 V−1 s−1 of PB(C12DTP)V-DTDPP-C12.

Graphical abstract: Novel conjugated polymers based on bis-dithieno[3,2-b;2′,3′-d]pyrrole vinylene donor and diketopyrrolopyrrole acceptor: side chain engineering in organic field effect transistors

Back to tab navigation

Supplementary files

Publication details

The article was received on 08 Aug 2017, accepted on 16 Nov 2017 and first published on 17 Nov 2017


Article type: Paper
DOI: 10.1039/C7PY01340J
Citation: Polym. Chem., 2018, Advance Article
  •   Request permissions

    Novel conjugated polymers based on bis-dithieno[3,2-b;2′,3′-d]pyrrole vinylene donor and diketopyrrolopyrrole acceptor: side chain engineering in organic field effect transistors

    F. Lin, S. Lin, C. Chin, W. Chuang and C. Hsu, Polym. Chem., 2018, Advance Article , DOI: 10.1039/C7PY01340J

Search articles by author

Spotlight

Advertisements