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Issue 48, 2015
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A hexacyclic ladder-type building block for high-performance D–A copolymers

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Abstract

A ladder-type unit thieno[3′,2′:3,4]isoquinolino[8,7-h]thieno[3,2-c]isoquinoline-6,13(7H,14H)-dione (TITI) was invented as an acceptor unit for constructing donor–acceptor (D–A) copolymers. Two polymers PThTITI and PSeTITI were developed by copolymerizing TITI with thiophene (Th) or selenophene (Se). Compared with PThTITI, PSeTITI possesses a lower bandgap and higher hole mobility. PThTITI:PC71BM and PSeTITI:PC71BM solar cells gave power conversion efficiencies (PCEs) of 5.53% and 6.17%, respectively.

Graphical abstract: A hexacyclic ladder-type building block for high-performance D–A copolymers

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Publication details

The article was received on 03 Oct 2015, accepted on 10 Nov 2015 and first published on 12 Nov 2015


Article type: Communication
DOI: 10.1039/C5TA07942J
Citation: J. Mater. Chem. A, 2015,3, 24211-24214
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    A hexacyclic ladder-type building block for high-performance D–A copolymers

    L. Qian, J. Cao and L. Ding, J. Mater. Chem. A, 2015, 3, 24211
    DOI: 10.1039/C5TA07942J

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