Issue 48, 2015

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

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

Supplementary files

Article information

Article type
Communication
Submitted
03 Okt 2015
Accepted
10 Nov 2015
First published
12 Nov 2015

J. Mater. Chem. A, 2015,3, 24211-24214

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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