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Article: Tuning the electronic properties of conjugated polymer by tethering low-bandgap rhenium(I) complex on the main chain

TitleTuning the electronic properties of conjugated polymer by tethering low-bandgap rhenium(I) complex on the main chain
Authors
KeywordsCharge transfer
Conjugated polymers
Low bandgap
Metal-containing polymers
Metal-polymer complexes
Pendant
Photophysics
Rhenium(i)
Issue Date2010
PublisherJohn Wiley & Sons, Inc. The Journal's web site is located at http://www3.interscience.wiley.com/cgi-bin/jhome/36444
Citation
Journal Of Polymer Science, Part A: Polymer Chemistry, 2010, v. 48 n. 11, p. 2311-2319 How to Cite?
AbstractLow-bandgap rhenium(I) complex with absorption onset at 795 nm in solution was tethered onto π-conjugated polymer. The conjugated copolymer provides solution processability of the metallopolymer, and the pendant allows the low energy-absorbing Re(I) complex units to be evenly distributed on the thin film. The copolymer tethered with low-bandgap rhenium complex was synthesized by Suzuki cross-coupling reaction. The metal-free polymer (poly-1) tethered with functionalized intramolecular charge transfer dye, 2-phenyl-3-pyridin-2-yl-5,7- di-2-thienylthieno[3,4-b]pyrazine, exhibited high molecular weight, good film-forming properties, and excellent solution processability. The pendants of the conjugated polymer possess donor-acceptor characters and broaden the absorption band. These pendants can function as bidentate ligands for metal chelation. The solubilizing groups on the monomers provide good solubility to the polymer even with high content of metal chelation. Upon the complexation with rhenium(I) pentacarbonyl chloride, the absorption spectrum of the resulting metallopolymer was further extended toward the near-infrared region. Photovoltaic performances based on this metallopolymer have been studied. The design approach of these metallopolymers provides synthetic feasibility for coordinating wide range of metal ions on the pendant, and the resulting low-bandgap polymer can be a potential candidate for light harvesting material in solar cell applications. © 2010 Wiley Periodicals, Inc.
Persistent Identifierhttp://hdl.handle.net/10722/69186
ISSN
2014 Impact Factor: 3.113
2014 SCImago Journal Rankings: 0.991
ISI Accession Number ID
Funding AgencyGrant Number
Research Grants Council of the Hong Kong Special Administrative Region, ChinaHKU 7008/07P
HKU 7005/08P
University Development Fund
Strategic Research Theme
Small Project Fund
Funding Information:

The project was supported by the Research Grants Council of the Hong Kong Special Administrative Region, China (project nos. HKU 7008/07P and 7005/08P). Financial support from the University Development Fund, Strategic Research Theme, and Small Project Fund (administrated by The University of Hong Kong) is also acknowledged.

References

 

DC FieldValueLanguage
dc.contributor.authorMak, CSKen_HK
dc.contributor.authorLeung, QYen_HK
dc.contributor.authorLi, CHOen_HK
dc.contributor.authorChan, WKen_HK
dc.date.accessioned2010-09-06T06:11:21Z-
dc.date.available2010-09-06T06:11:21Z-
dc.date.issued2010en_HK
dc.identifier.citationJournal Of Polymer Science, Part A: Polymer Chemistry, 2010, v. 48 n. 11, p. 2311-2319en_HK
dc.identifier.issn0887-624Xen_HK
dc.identifier.urihttp://hdl.handle.net/10722/69186-
dc.description.abstractLow-bandgap rhenium(I) complex with absorption onset at 795 nm in solution was tethered onto π-conjugated polymer. The conjugated copolymer provides solution processability of the metallopolymer, and the pendant allows the low energy-absorbing Re(I) complex units to be evenly distributed on the thin film. The copolymer tethered with low-bandgap rhenium complex was synthesized by Suzuki cross-coupling reaction. The metal-free polymer (poly-1) tethered with functionalized intramolecular charge transfer dye, 2-phenyl-3-pyridin-2-yl-5,7- di-2-thienylthieno[3,4-b]pyrazine, exhibited high molecular weight, good film-forming properties, and excellent solution processability. The pendants of the conjugated polymer possess donor-acceptor characters and broaden the absorption band. These pendants can function as bidentate ligands for metal chelation. The solubilizing groups on the monomers provide good solubility to the polymer even with high content of metal chelation. Upon the complexation with rhenium(I) pentacarbonyl chloride, the absorption spectrum of the resulting metallopolymer was further extended toward the near-infrared region. Photovoltaic performances based on this metallopolymer have been studied. The design approach of these metallopolymers provides synthetic feasibility for coordinating wide range of metal ions on the pendant, and the resulting low-bandgap polymer can be a potential candidate for light harvesting material in solar cell applications. © 2010 Wiley Periodicals, Inc.en_HK
dc.languageengen_HK
dc.publisherJohn Wiley & Sons, Inc. The Journal's web site is located at http://www3.interscience.wiley.com/cgi-bin/jhome/36444en_HK
dc.relation.ispartofJournal of Polymer Science, Part A: Polymer Chemistryen_HK
dc.rightsJournal of Polymer Science Part A, Polymer chemistry. Copyright © John Wiley & Sons, Inc.-
dc.subjectCharge transferen_HK
dc.subjectConjugated polymersen_HK
dc.subjectLow bandgapen_HK
dc.subjectMetal-containing polymersen_HK
dc.subjectMetal-polymer complexesen_HK
dc.subjectPendanten_HK
dc.subjectPhotophysicsen_HK
dc.subjectRhenium(i)en_HK
dc.titleTuning the electronic properties of conjugated polymer by tethering low-bandgap rhenium(I) complex on the main chainen_HK
dc.typeArticleen_HK
dc.identifier.emailMak, CSK: cskm@hkucc.hku.hken_HK
dc.identifier.emailChan, WK: waichan@hku.hken_HK
dc.identifier.authorityMak, CSK=rp00761en_HK
dc.identifier.authorityChan, WK=rp00667en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1002/pola.23996en_HK
dc.identifier.scopuseid_2-s2.0-77952137347en_HK
dc.identifier.hkuros170071en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-77952137347&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume48en_HK
dc.identifier.issue11en_HK
dc.identifier.spage2311en_HK
dc.identifier.epage2319en_HK
dc.identifier.isiWOS:000278154700005-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridMak, CSK=8899597100en_HK
dc.identifier.scopusauthoridLeung, QY=25650267500en_HK
dc.identifier.scopusauthoridLi, CHO=36463735300en_HK
dc.identifier.scopusauthoridChan, WK=13310083000en_HK

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