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Article: Tuning the absorption, charge transport properties, and solar cell efficiency with the number of thienyl rings in platinum-containing poly(aryleneethynylene)s

TitleTuning the absorption, charge transport properties, and solar cell efficiency with the number of thienyl rings in platinum-containing poly(aryleneethynylene)s
Authors
Issue Date2007
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/journals/jacsat/index.html
Citation
Journal Of The American Chemical Society, 2007, v. 129 n. 46, p. 14372-14380 How to Cite?
AbstractThe synthesis, characterization, and photophysics of a series of solution-processable and strongly visible-light absorbing platinum(II) polyynes containing bithiazole-oligo(thienyl) rings were presented. Tuning the polymer solar cell efficiency, as well as optical and charge transport properties, in soluble, low-band gap Pt II-based conjugated poly(heteroaryleneethynylene)s using the number of oligothienyl rings is described. These materials are highly soluble in polar organic solvents due to the presence of solubilizing bithiazole moieties and show strong absorptions in the solar spectra, rendering them excellent candidates for bulk heterojunction polymer solar cells. Their photovoltaic responses and power conversion efficiencies (PCEs) depend to a large extent on the number of thienyl rings along the main chain, and some of them can be used to fabricate highly efficient solar cells with PCEs of up to 2.7% and a peak external quantum efficiency to 83% under AM1.5 simulated solar illumination, which is comparable to that of poly(3-hexylthiophene)-based devices fabricated without additional processing (annealing or TiO x layer). The influence of the number of thienyl rings and the metal group on the performance parameters and optimization of solar cell efficiency was evaluated and discussed in detail. At the same blend ratio of 1:4, the light-harvesting ability and PCE increase sharply as the thienyl chain length increases. The present work provides an attractive approach to developing conjugated metallopolymers offering broad solar absorptions and tunable solar cell efficiency and demonstrates the potential of metalated conjugated polymers for efficient power generation. © 2007 American Chemical Society.
Persistent Identifierhttp://hdl.handle.net/10722/70502
ISSN
2015 Impact Factor: 13.038
2015 SCImago Journal Rankings: 7.123
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorWong, WYen_HK
dc.contributor.authorWang, XZen_HK
dc.contributor.authorHe, Zen_HK
dc.contributor.authorChan, KKen_HK
dc.contributor.authorDjurišć, ABen_HK
dc.contributor.authorCheung, KYen_HK
dc.contributor.authorYip, CTen_HK
dc.contributor.authorNg, AMCen_HK
dc.contributor.authorYan, YXen_HK
dc.contributor.authorMak, CSKen_HK
dc.contributor.authorChan, WKen_HK
dc.date.accessioned2010-09-06T06:23:29Z-
dc.date.available2010-09-06T06:23:29Z-
dc.date.issued2007en_HK
dc.identifier.citationJournal Of The American Chemical Society, 2007, v. 129 n. 46, p. 14372-14380en_HK
dc.identifier.issn0002-7863en_HK
dc.identifier.urihttp://hdl.handle.net/10722/70502-
dc.description.abstractThe synthesis, characterization, and photophysics of a series of solution-processable and strongly visible-light absorbing platinum(II) polyynes containing bithiazole-oligo(thienyl) rings were presented. Tuning the polymer solar cell efficiency, as well as optical and charge transport properties, in soluble, low-band gap Pt II-based conjugated poly(heteroaryleneethynylene)s using the number of oligothienyl rings is described. These materials are highly soluble in polar organic solvents due to the presence of solubilizing bithiazole moieties and show strong absorptions in the solar spectra, rendering them excellent candidates for bulk heterojunction polymer solar cells. Their photovoltaic responses and power conversion efficiencies (PCEs) depend to a large extent on the number of thienyl rings along the main chain, and some of them can be used to fabricate highly efficient solar cells with PCEs of up to 2.7% and a peak external quantum efficiency to 83% under AM1.5 simulated solar illumination, which is comparable to that of poly(3-hexylthiophene)-based devices fabricated without additional processing (annealing or TiO x layer). The influence of the number of thienyl rings and the metal group on the performance parameters and optimization of solar cell efficiency was evaluated and discussed in detail. At the same blend ratio of 1:4, the light-harvesting ability and PCE increase sharply as the thienyl chain length increases. The present work provides an attractive approach to developing conjugated metallopolymers offering broad solar absorptions and tunable solar cell efficiency and demonstrates the potential of metalated conjugated polymers for efficient power generation. © 2007 American Chemical Society.en_HK
dc.languageengen_HK
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/journals/jacsat/index.htmlen_HK
dc.relation.ispartofJournal of the American Chemical Societyen_HK
dc.titleTuning the absorption, charge transport properties, and solar cell efficiency with the number of thienyl rings in platinum-containing poly(aryleneethynylene)sen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0002-7863&volume=129&spage=14372&epage=14380&date=2007&atitle=Tuning+the+absorption,+charge+transport+properties,+and+solar+cell+efficiency+with+the+number+of+thienyl+rings+in+platinum-containing+poly(aryleneethynylene)sen_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.doi10.1021/ja074959zen_HK
dc.identifier.pmid17967015-
dc.identifier.scopuseid_2-s2.0-36448937485en_HK
dc.identifier.hkuros139142en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-36448937485&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume129en_HK
dc.identifier.issue46en_HK
dc.identifier.spage14372en_HK
dc.identifier.epage14380en_HK
dc.identifier.eissn1520-5126-
dc.identifier.isiWOS:000251182000064-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridWong, WY=7403972153en_HK
dc.identifier.scopusauthoridWang, XZ=8907969400en_HK
dc.identifier.scopusauthoridHe, Z=36547970300en_HK
dc.identifier.scopusauthoridChan, KK=35081729900en_HK
dc.identifier.scopusauthoridDjurišć, AB=23011139300en_HK
dc.identifier.scopusauthoridCheung, KY=25229974800en_HK
dc.identifier.scopusauthoridYip, CT=14043063100en_HK
dc.identifier.scopusauthoridNg, AMC=12140078600en_HK
dc.identifier.scopusauthoridYan, YX=55239622800en_HK
dc.identifier.scopusauthoridMak, CSK=8899597100en_HK
dc.identifier.scopusauthoridChan, WK=13310083000en_HK

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