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Article: Synthesis of conjugated polymers with pendant ruthenium terpyridine trithiocyanato complexes and their applications in heterojunction photovoltaic cells

TitleSynthesis of conjugated polymers with pendant ruthenium terpyridine trithiocyanato complexes and their applications in heterojunction photovoltaic cells
Authors
KeywordsConjugated polymers
Metal-polymer complexes
Photophysics
Issue Date2008
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, 2008, v. 46 n. 4, p. 1305-1317 How to Cite?
AbstractTwo conjugated polymers based on poly(phenylenethiophene) and poly (fluorenethiophene) main chain functionalized with pendant trithiocyanato ruthenium terpyridine complexes were synthesized by the Suzuki coupling reaction. The ruthenium complexes can extend the absorption band to longer wavelength and enhance the photosensitivity in this region. The polymers exhibit very broad absorption band spanning from 400 to 750 nm due to the presence of π-conjugated system and the ruthenium complexes. Such enhancement in optical absorption enables the utilization of solar light in the near IR region. By space charge limited current modeling, the hole carrier mobilities of the polymers were calculated to be in the order of 10-4 cm2 V-1 s-1, which greatly facilitate the transport of charges after the separation of excitons. Heterojunction photovoltaic cells with simple structure ITO/polymer/ C60/Al were fabricated. Under simulated AM1.5 solar light illumination, the short circuit currents, open circuit voltages, and power conversion efficiencies of the photovoltaic cells were measured to be 1.53-2.58 mA cm -2, 0.12-0.24 V, and 0.084-0.12%, respectively. Deposition of PEDOT:PSS on ITO surface did not show significant difference in device performance. Plot of incident photon to charge efficiency as the function of wavelength suggests that absorption by both conjugated main chain and ruthenium complex are essential to the photocurrent generation. © 2008 Wiley Periodicals, Inc.
Persistent Identifierhttp://hdl.handle.net/10722/69448
ISSN
2015 Impact Factor: 3.114
2015 SCImago Journal Rankings: 1.037
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorCheng, KWen_HK
dc.contributor.authorMak, CSCen_HK
dc.contributor.authorChan, WKen_HK
dc.contributor.authorNg, AMCen_HK
dc.contributor.authorDjurišić, ABen_HK
dc.date.accessioned2010-09-06T06:13:45Z-
dc.date.available2010-09-06T06:13:45Z-
dc.date.issued2008en_HK
dc.identifier.citationJournal Of Polymer Science, Part A: Polymer Chemistry, 2008, v. 46 n. 4, p. 1305-1317en_HK
dc.identifier.issn0887-624Xen_HK
dc.identifier.urihttp://hdl.handle.net/10722/69448-
dc.description.abstractTwo conjugated polymers based on poly(phenylenethiophene) and poly (fluorenethiophene) main chain functionalized with pendant trithiocyanato ruthenium terpyridine complexes were synthesized by the Suzuki coupling reaction. The ruthenium complexes can extend the absorption band to longer wavelength and enhance the photosensitivity in this region. The polymers exhibit very broad absorption band spanning from 400 to 750 nm due to the presence of π-conjugated system and the ruthenium complexes. Such enhancement in optical absorption enables the utilization of solar light in the near IR region. By space charge limited current modeling, the hole carrier mobilities of the polymers were calculated to be in the order of 10-4 cm2 V-1 s-1, which greatly facilitate the transport of charges after the separation of excitons. Heterojunction photovoltaic cells with simple structure ITO/polymer/ C60/Al were fabricated. Under simulated AM1.5 solar light illumination, the short circuit currents, open circuit voltages, and power conversion efficiencies of the photovoltaic cells were measured to be 1.53-2.58 mA cm -2, 0.12-0.24 V, and 0.084-0.12%, respectively. Deposition of PEDOT:PSS on ITO surface did not show significant difference in device performance. Plot of incident photon to charge efficiency as the function of wavelength suggests that absorption by both conjugated main chain and ruthenium complex are essential to the photocurrent generation. © 2008 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.subjectConjugated polymersen_HK
dc.subjectMetal-polymer complexesen_HK
dc.subjectPhotophysicsen_HK
dc.titleSynthesis of conjugated polymers with pendant ruthenium terpyridine trithiocyanato complexes and their applications in heterojunction photovoltaic cellsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1612-5681&volume=46&spage=1305&epage=1317&date=2008&atitle=Synthesis+of+conjugated+polymers+with+pendant+ruthenium+terpyridine+trithiocyanato+complexes+and+their+applications+in+heterojunction+photovoltaic+cellsen_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.doi10.1002/pola.22471en_HK
dc.identifier.scopuseid_2-s2.0-38849087385en_HK
dc.identifier.hkuros141555en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-38849087385&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume46en_HK
dc.identifier.issue4en_HK
dc.identifier.spage1305en_HK
dc.identifier.epage1317en_HK
dc.identifier.eissn1099-0518-
dc.identifier.isiWOS:000253221300014-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridCheng, KW=36439221300en_HK
dc.identifier.scopusauthoridMak, CSC=23486056100en_HK
dc.identifier.scopusauthoridChan, WK=13310083000en_HK
dc.identifier.scopusauthoridNg, AMC=12140078600en_HK
dc.identifier.scopusauthoridDjurišić, AB=7004904830en_HK

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