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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/10905

Title: Design and synthesis of side-chain functionalized regioregular poly(3-hexylthiophene)-based copolymers and application in polymer:fullerene bulk heterojunction solar cells
Authors: CAMPO, Bert
Gilot, J.
CLEIJ, Thomas
LUTSEN, Laurence
Janssen, R.A.J.
Issue Date: 2009
Publisher: SPIE
Citation: Kafafi, Zakya H. & Lane, Paul A. (Ed.)ORGANIC PHOTOVOLTAICS X, (Art N° 74161G)
Series/Report: Proceedings of SPIE
Series/Report no.: 7416
Abstract: set of novel regioregular poly(3-hexylthiophene)-based random copolymers containing varying ratios of ester functionalized alkyl side chains were synthesized using the Rieke method. The percentage of functionalized side chain varied between 10 and 50 mol% for each copolymer. Using post-polymerization reactions, the ester functions in the alkyl side chain were hydrolyzed to yield an alcohol or acid group. These groups are available for further functionalization reactions, so a wide variety of secondary functionalities may be covalently attached to the conjugated polymer. The copolymers were applied in polymer: fullerene bulk heterojunction solar cells (BHJSCs) with [6,6]-phenyl -C61-butyric acid methyl ester (PCBM) as electron acceptor. The influence of side-chain functionalities on absorption, device performance and layer morphology depends on the ratio and nature of the functionalized side chains. For a 9/1 copolymer, containing 10% of functionalized side chains, behaviour and efficiency in BHJSCs comparable to P3HT:PCBM solar cells were observed.
URI: http://hdl.handle.net/1942/10905
DOI: 10.1117/12.825881
ISI #: 000307649100018
ISBN: 9780819477064
ISSN: 0361-0748
Category: C1
Type: Proceedings Paper
Validation: ecoom, 2014
Appears in Collections: Research publications

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