Vinyl-Type Polynorbornenes with Pendant PCBM: A Novel Acceptor for Organic Solar Cells

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Vinyl addition homo- and copolymerization of norbornene monomer (M1) functionalized with a PCBM moiety using a Pd(II) catalyst in combination with a 1-octene chain transfer agent efficiently produces polynorbornenes with side-chain PCBM groups. Characterization by NMR spectroscopy and elemental analysis reveals that the copolymers constitute a well-defined polymer structure with controlled incorporation of M1. Although the homopolymer is insoluble in organic solvents, the copolymers containing 62 mol% (P2) and 50 mol% (P3) of the PCBM moiety are soluble in chlorinated solvents such as o-dichlorobenzene. The bulk-heterojunction organic photovoltaic devices fabricated based on the P3HT:P3 blends show that P3 can adequately function as an electron acceptor, leading to a cell with a power conversion efficiency of 1.5%, which is outstanding among the polymeric rivals.
Publisher
WILEY-V C H VERLAG GMBH
Issue Date
2012-07
Language
English
Article Type
Article
Keywords

OPENING METATHESIS POLYMERIZATION; N-HETEROCYCLIC CARBENE; HIGH FULLERENE CONTENT; HIGHLY EFFICIENT; PHOTOVOLTAIC DEVICES; DERIVATIVES; PERFORMANCE; COPOLYMERS; INTERLAYER; COMPLEXES

Citation

MACROMOLECULAR RAPID COMMUNICATIONS, v.33, no.13, pp.1119 - 1125

ISSN
1022-1336
DOI
10.1002/marc.201200023
URI
http://hdl.handle.net/10203/104623
Appears in Collection
EE-Journal Papers(저널논문)CH-Journal Papers(저널논문)
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