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Article: Synthesis and photovoltaic properties of new metalloporphyrin-containing polyplatinyne polymers

TitleSynthesis and photovoltaic properties of new metalloporphyrin-containing polyplatinyne polymers
Authors
Issue Date2011
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/macromolecules
Citation
Macromolecules, 2011, v. 44 n. 13, p. 5155-5167 How to Cite?
AbstractThree new solution-processable platinum(II) polyyne polymers containing zinc(II) porphyrinate chromophores P1, P2, and P3 and their corresponding dinuclear model complexes were synthesized via the CuI-catalyzed dehydrohalogenation reaction of the platinum(II) chloride precursor and each of the respective bis(ethynyl)-zinc(porphyrin) metalloligands. The thermal, photophysical (absorption, excitation and emission spectra), electrochemical, and photovoltaic properties of P1-P3 were investigated. These results are also correlated by time-dependent density functional theory (TDDFT) calculations. The computations corroborate the presence of moderate conjugation in the π-systems, somewhat more accentuated for P3 where more favorable dihedral angles between the porphyrin and thiophene rings are noted. Moreover, the computed excited states are predicted to be π-π* in nature with some charge transfer components from the trans-[-C≡CPt(L) 2C≡ C-] n unit to the porphyrin rings. The optical bandgaps range from 1.93 to 2.02 eV for P1-P3. Intense π-π*-localized fluorescence emissions typical of the Q-bands of the polymers were observed. The effect of thiophene ring along the polymer chain on the extent of π-conjugation, luminescent and photovoltaic properties of these metalated materials was also examined. Bulk heterojunction solar cells using these metallopolymers as an electron donor blended with a methanofullerene electron acceptor were studied. In one case, the metallopolymer P3 showed a power conversion efficiency of 1.04% with the open-circuit voltage of 0.77 V, short-circuit current density of 3.42 mA cm -2 and fill factor of 0.39 under illumination of an AM 1.5 solar cell simulator. © 2011 American Chemical Society.
Persistent Identifierhttp://hdl.handle.net/10722/135379
ISSN
2015 Impact Factor: 5.554
2015 SCImago Journal Rankings: 2.497
ISI Accession Number ID
Funding AgencyGrant Number
Hong Kong Research Grants CouncilHKBU 202607
HKUST2/CRF/10
Hong Kong Baptist UniversityFRG2/09-10/091
Croucher Foundation
University Grants Committee, Hong KongAoE/P-03/08
University of Hong Kong
Funding Information:

W.-Y.W. acknowledges the support from the Hong Kong Research Grants Council for the General Research Grant (Grant no: HKBU 202607) and the Collaborative Research Fund (HKUST2/CRF/10), Hong Kong Baptist University for the FRG grant (FRG2/09-10/091) and the Croucher Foundation for the Croucher Senior Research Fellowship. This work was also supported by the Areas of Excellence Scheme, University Grants Committee, Hong Kong (AoE/P-03/08). We also thank the Natural Sciences and Engineering Research Council of Canada (NSERC), le Fonds Quebecois de la Recherche sur la Nature et lea Technologies (FQRNT), and the Centre d'Etudes des Materiaux Optiques et Photoniques de l'Universite de Sherbrooke. This work was also supported by Small Project Funding, Strategic Research Theme, and University Development Fund of the University of Hong Kong.

References
Grants

 

DC FieldValueLanguage
dc.contributor.authorZhan, Hen_HK
dc.contributor.authorLamare, Sen_HK
dc.contributor.authorNg, Aen_HK
dc.contributor.authorKenny, Ten_HK
dc.contributor.authorGuernon, Hen_HK
dc.contributor.authorChan, WKen_HK
dc.contributor.authorDjurišić, ABen_HK
dc.contributor.authorHarvey, PDen_HK
dc.contributor.authorWong, WYen_HK
dc.date.accessioned2011-07-27T01:34:16Z-
dc.date.available2011-07-27T01:34:16Z-
dc.date.issued2011en_HK
dc.identifier.citationMacromolecules, 2011, v. 44 n. 13, p. 5155-5167en_HK
dc.identifier.issn0024-9297en_HK
dc.identifier.urihttp://hdl.handle.net/10722/135379-
dc.description.abstractThree new solution-processable platinum(II) polyyne polymers containing zinc(II) porphyrinate chromophores P1, P2, and P3 and their corresponding dinuclear model complexes were synthesized via the CuI-catalyzed dehydrohalogenation reaction of the platinum(II) chloride precursor and each of the respective bis(ethynyl)-zinc(porphyrin) metalloligands. The thermal, photophysical (absorption, excitation and emission spectra), electrochemical, and photovoltaic properties of P1-P3 were investigated. These results are also correlated by time-dependent density functional theory (TDDFT) calculations. The computations corroborate the presence of moderate conjugation in the π-systems, somewhat more accentuated for P3 where more favorable dihedral angles between the porphyrin and thiophene rings are noted. Moreover, the computed excited states are predicted to be π-π* in nature with some charge transfer components from the trans-[-C≡CPt(L) 2C≡ C-] n unit to the porphyrin rings. The optical bandgaps range from 1.93 to 2.02 eV for P1-P3. Intense π-π*-localized fluorescence emissions typical of the Q-bands of the polymers were observed. The effect of thiophene ring along the polymer chain on the extent of π-conjugation, luminescent and photovoltaic properties of these metalated materials was also examined. Bulk heterojunction solar cells using these metallopolymers as an electron donor blended with a methanofullerene electron acceptor were studied. In one case, the metallopolymer P3 showed a power conversion efficiency of 1.04% with the open-circuit voltage of 0.77 V, short-circuit current density of 3.42 mA cm -2 and fill factor of 0.39 under illumination of an AM 1.5 solar cell simulator. © 2011 American Chemical Society.en_HK
dc.languageengen_US
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/macromoleculesen_HK
dc.relation.ispartofMacromoleculesen_HK
dc.titleSynthesis and photovoltaic properties of new metalloporphyrin-containing polyplatinyne polymersen_HK
dc.typeArticleen_HK
dc.identifier.emailChan, WK: waichan@hku.hken_HK
dc.identifier.emailDjurišić, AB: dalek@hku.hken_HK
dc.identifier.authorityChan, WK=rp00667en_HK
dc.identifier.authorityDjurišić, AB=rp00690en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1021/ma2006206en_HK
dc.identifier.scopuseid_2-s2.0-79959978292en_HK
dc.identifier.hkuros188051en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-79959978292&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume44en_HK
dc.identifier.issue13en_HK
dc.identifier.spage5155en_HK
dc.identifier.epage5167en_HK
dc.identifier.isiWOS:000292417800014-
dc.publisher.placeUnited Statesen_HK
dc.relation.projectDevelopment of efficient luminogenic materials in the aggregate state: fundamental understanding and practical applications-
dc.relation.projectInstitute of Molecular Functional Materials-
dc.identifier.scopusauthoridZhan, H=36674396600en_HK
dc.identifier.scopusauthoridLamare, S=43761430400en_HK
dc.identifier.scopusauthoridNg, A=13806222700en_HK
dc.identifier.scopusauthoridKenny, T=43761166100en_HK
dc.identifier.scopusauthoridGuernon, H=42261528400en_HK
dc.identifier.scopusauthoridChan, WK=13310083000en_HK
dc.identifier.scopusauthoridDjurišić, AB=7004904830en_HK
dc.identifier.scopusauthoridHarvey, PD=7401431908en_HK
dc.identifier.scopusauthoridWong, WY=7403972153en_HK

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