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Article: Harvesting solar energy using conjugated metallopolyyne donors containing electron-rich phenothiazine-oligothiophene moieties

TitleHarvesting solar energy using conjugated metallopolyyne donors containing electron-rich phenothiazine-oligothiophene moieties
Authors
KeywordsMetallopolyynes
Oligothiophene
Phenothiazine
Photovoltaics
Platinum
Issue Date2009
PublisherElsevier SA. The Journal's web site is located at http://www.elsevier.com/locate/jorganchem
Citation
Journal Of Organometallic Chemistry, 2009, v. 694 n. 17, p. 2717-2726 How to Cite?
AbstractA new family of soluble, solution-processable metallopolyynes of platinum(II) functionalized with electron-rich phenothiazine-oligothiophene rings and their corresponding dinuclear model complexes were synthesized and characterized. The organometallic polymers show different degrees of absorption capabilities in the solar spectral region, rendering some of them good electron donors for fabricating bulk heterojunction polymer solar cells by blending with a methanofullerene electron acceptor. The influence of the number of thienyl rings along the polymer chain on the optical and photovoltaic properties of these metallopolymers was studied. At the same donor:acceptor blend ratio of 1:4 or 1:5, the light-harvesting capability and solar cell efficiency notably increase as the number of thienyl rings is doubled. Photoexcitation of the polymer solar cells results in a photoinduced electron transfer from the π-conjugated metallopolyyne to [6,6]-phenyl C 61-butyric acid methyl ester and the best-performing polymer showed a power conversion efficiency (PCE) up to ∼1.3% with a corresponding peak external quantum efficiency of 63% under air mass (AM1.5) simulated solar illumination even at shorter absorption wavelength regime. The power dependencies of the solar cell parameters (including the short-circuit current density, open-circuit voltage, fill-factor and PCE) were also tested in detail. © 2009 Elsevier B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/69523
ISSN
2015 Impact Factor: 2.336
2015 SCImago Journal Rankings: 0.732
ISI Accession Number ID
Funding AgencyGrant Number
Hong Kong Research Grants CouncilHKBU202005
Hong Kong Baptist UniversityFRG/06-07/II-63
Strategic Research Theme
University Development Fund
Seed Funding Grant and Outstanding Young Researcher Award
Funding Information:

This work was supported by a CERG Grant from the Hong Kong Research Grants Council (HKBU202005) and a Faculty Research Grant from the Hong Kong Baptist University (FRG/06-07/II-63). Financial support from the Strategic Research Theme, University Development Fund, and Seed Funding Grant and Outstanding Young Researcher Award (administrated by The University of Hong Kong) is also acknowledged.

References

 

DC FieldValueLanguage
dc.contributor.authorWong, WYen_HK
dc.contributor.authorChow, WCen_HK
dc.contributor.authorCheung, KYen_HK
dc.contributor.authorFung, MKen_HK
dc.contributor.authorDjurišić, ABen_HK
dc.contributor.authorChan, WKen_HK
dc.date.accessioned2010-09-06T06:14:27Z-
dc.date.available2010-09-06T06:14:27Z-
dc.date.issued2009en_HK
dc.identifier.citationJournal Of Organometallic Chemistry, 2009, v. 694 n. 17, p. 2717-2726en_HK
dc.identifier.issn0022-328Xen_HK
dc.identifier.urihttp://hdl.handle.net/10722/69523-
dc.description.abstractA new family of soluble, solution-processable metallopolyynes of platinum(II) functionalized with electron-rich phenothiazine-oligothiophene rings and their corresponding dinuclear model complexes were synthesized and characterized. The organometallic polymers show different degrees of absorption capabilities in the solar spectral region, rendering some of them good electron donors for fabricating bulk heterojunction polymer solar cells by blending with a methanofullerene electron acceptor. The influence of the number of thienyl rings along the polymer chain on the optical and photovoltaic properties of these metallopolymers was studied. At the same donor:acceptor blend ratio of 1:4 or 1:5, the light-harvesting capability and solar cell efficiency notably increase as the number of thienyl rings is doubled. Photoexcitation of the polymer solar cells results in a photoinduced electron transfer from the π-conjugated metallopolyyne to [6,6]-phenyl C 61-butyric acid methyl ester and the best-performing polymer showed a power conversion efficiency (PCE) up to ∼1.3% with a corresponding peak external quantum efficiency of 63% under air mass (AM1.5) simulated solar illumination even at shorter absorption wavelength regime. The power dependencies of the solar cell parameters (including the short-circuit current density, open-circuit voltage, fill-factor and PCE) were also tested in detail. © 2009 Elsevier B.V. All rights reserved.en_HK
dc.languageengen_HK
dc.publisherElsevier SA. The Journal's web site is located at http://www.elsevier.com/locate/jorganchemen_HK
dc.relation.ispartofJournal of Organometallic Chemistryen_HK
dc.subjectMetallopolyynesen_HK
dc.subjectOligothiopheneen_HK
dc.subjectPhenothiazineen_HK
dc.subjectPhotovoltaicsen_HK
dc.subjectPlatinumen_HK
dc.titleHarvesting solar energy using conjugated metallopolyyne donors containing electron-rich phenothiazine-oligothiophene moietiesen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0022-328X&volume=694&spage=2717&epage=2726&date=2009&atitle=Harvesting+solar+energy+using+conjugated+metallopolyyne+donors+containing+electron-rich+phenothiazine-oligothiophene+moietiesen_HK
dc.identifier.emailDjurišić, AB: dalek@hku.hken_HK
dc.identifier.emailChan, WK: waichan@hku.hken_HK
dc.identifier.authorityDjurišić, AB=rp00690en_HK
dc.identifier.authorityChan, WK=rp00667en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.jorganchem.2009.02.006en_HK
dc.identifier.scopuseid_2-s2.0-67650077497en_HK
dc.identifier.hkuros159647en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-67650077497&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume694en_HK
dc.identifier.issue17en_HK
dc.identifier.spage2717en_HK
dc.identifier.epage2726en_HK
dc.identifier.isiWOS:000267931300011-
dc.publisher.placeSwitzerlanden_HK
dc.identifier.scopusauthoridWong, WY=7403972153en_HK
dc.identifier.scopusauthoridChow, WC=18435785600en_HK
dc.identifier.scopusauthoridCheung, KY=25229974800en_HK
dc.identifier.scopusauthoridFung, MK=35191896100en_HK
dc.identifier.scopusauthoridDjurišić, AB=7004904830en_HK
dc.identifier.scopusauthoridChan, WK=13310083000en_HK

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