Synthesis and characterization of poly(Dithieno[3,2-b:2′,3′-d] pyrrole) Derivatives Containing Thiophene Moieties and Their Application to Organic Devices

Title
Synthesis and characterization of poly(Dithieno[3,2-b:2′,3′-d] pyrrole) Derivatives Containing Thiophene Moieties and Their Application to Organic Devices
Authors
정형구임보규나석인백강준김주환윤진문김동유
Issue Date
2011-11
Publisher
Macromolecular chemistry and physics
Citation
VOL 212, NO 21, 2308-2318
Abstract
A series of conjugated polymers (PDTP, PDTPT, PDTPTT) based on dithieno[3,2- b :2 ′ ,3 ′ - d ]pyrrole (DTP) containing branched side-chains is synthesized. The synthesized polymers show good solubility due to branched side-chains in the organic solvent in the absence of heat treatment. To increase the oxidation potential, unsubstituted thiophene units are introduced into the polymer backbone. The introduction of unsubstituted thiophene units increases the oxidation potential, elevates degradation temperature, and enhances electronic properties. The PDTPTT FETs show the highest charge-carrier mobility among the three polymers. These polymers are used as a donor material in bulk heterojunction solar cells, and the PDTPTT photovoltaic cells exhibit high performance.
URI
http://pubs.kist.re.kr/handle/201004/41020
ISSN
1022-1352
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KIST Publication > Article
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