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9-Alkylidene-9H-Fluorene-Containing Polymer for High-Efficiency Polymer Solar Cells
Chinese Academy of Science.
Linköpings universitet, Institutionen för fysik, kemi och biologi. Linköpings universitet, Tekniska högskolan.
Chinese Academy of Science.
Chinese Academy of Science.
Vise andre og tillknytning
2011 (engelsk)Inngår i: Macromolecules, ISSN 0024-9297, E-ISSN 1520-5835, Vol. 44, nr 19, s. 7617-7624Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

A novel donor-acceptor copolymer containing 9-alkylidene-9H-fluorene unit in the main chain, poly[9-(1-hexylheptylidene)-2,7-fluorene-alt-5, 5-(4,7-di-2-thienyl-5,6-dialkoxy-2,1,3-benzothiadiazole)] (PAFDTBT), has been synthesized and evaluated in bulk heterojunction polymer solar cells (BHJ PSCs). The polymer possesses a low band gap of 1.84 eV, a low-lying HOMO energy level (5.32 eV), and excellent solubility in common organic solvents. PSCs based on PAFDTBT and (6,6)-phenyl-C(71)-butyric add methyl ester (PC(71)BM) demonstrate a power conversion efficiency (PCE) of 6.2% with a high fill factor (FF) of 0.70, which indicates that 9-alkylidene-9H-fluorene can be a very useful building block for constructing narrow band gap conjugated polymers for high-efficiency BHJ PSCs.

sted, utgiver, år, opplag, sider
American Chemical Society , 2011. Vol. 44, nr 19, s. 7617-7624
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Identifikatorer
URN: urn:nbn:se:liu:diva-71637DOI: 10.1021/ma201477bISI: 000295487600015OAI: oai:DiVA.org:liu-71637DiVA, id: diva2:451831
Merknad

Funding Agencies|NSF of China|2083400650821062|973 Program|2011CB9357032009CB-623603|IC, CAS from Swedish Research Council (VR)||

Tilgjengelig fra: 2011-10-27 Laget: 2011-10-27 Sist oppdatert: 2017-12-08

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