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Article: Impact of dye interlayer on the performance of organic photovoltaic devices

TitleImpact of dye interlayer on the performance of organic photovoltaic devices
Authors
Issue Date2009
PublisherAmerican Institute of Physics. The Journal's web site is located at http://apl.aip.org/
Citation
Applied Physics Letters, 2009, v. 95 n. 15, article no. 153303 How to Cite?
AbstractThe influences of buffer interlayer at the donor/acceptor interface on the open circuit voltage (VOC) of typical copper phthalocyanine (CuPc) / C60 organic photovoltaic devices are studied. Six fluorescent dyes with progressively increasing ionization potentials (I P) were used to investigate the factors influencing the VOC. The short-circuit current and fill factor of CuPc/ C60 device incorporating dye interlayer are lower than those of standard bilayer device. On the other hand, the VOC increases linearly with the I P of dye material and falls off when the I P is equal to or greater than 5.6 eV, in which the energy offset between the highest occupied molecular orbitals at the interlayer/ C60 heterojunction is smaller than the C60 exciton binding energy. The findings underscore the importance of energy offsets in photovoltaic responses. © 2009 American Institute of Physics.
Persistent Identifierhttp://hdl.handle.net/10722/69840
ISSN
2015 Impact Factor: 3.142
2015 SCImago Journal Rankings: 1.105
ISI Accession Number ID
Funding AgencyGrant Number
Research Grants Council of Hong KongCityU 101707
Funding Information:

This work was supported by the Research Grants Council of Hong Kong (Project No. CityU 101707).

References

 

DC FieldValueLanguage
dc.contributor.authorLai, SLen_HK
dc.contributor.authorLo, MFen_HK
dc.contributor.authorChan, MYen_HK
dc.contributor.authorLee, CSen_HK
dc.contributor.authorLee, STen_HK
dc.date.accessioned2010-09-06T06:17:19Z-
dc.date.available2010-09-06T06:17:19Z-
dc.date.issued2009en_HK
dc.identifier.citationApplied Physics Letters, 2009, v. 95 n. 15, article no. 153303en_HK
dc.identifier.issn0003-6951en_HK
dc.identifier.urihttp://hdl.handle.net/10722/69840-
dc.description.abstractThe influences of buffer interlayer at the donor/acceptor interface on the open circuit voltage (VOC) of typical copper phthalocyanine (CuPc) / C60 organic photovoltaic devices are studied. Six fluorescent dyes with progressively increasing ionization potentials (I P) were used to investigate the factors influencing the VOC. The short-circuit current and fill factor of CuPc/ C60 device incorporating dye interlayer are lower than those of standard bilayer device. On the other hand, the VOC increases linearly with the I P of dye material and falls off when the I P is equal to or greater than 5.6 eV, in which the energy offset between the highest occupied molecular orbitals at the interlayer/ C60 heterojunction is smaller than the C60 exciton binding energy. The findings underscore the importance of energy offsets in photovoltaic responses. © 2009 American Institute of Physics.en_HK
dc.languageengen_HK
dc.publisherAmerican Institute of Physics. The Journal's web site is located at http://apl.aip.org/en_HK
dc.relation.ispartofApplied Physics Lettersen_HK
dc.rightsApplied Physics Letters. Copyright © American Institute of Physics.en_HK
dc.rightsCopyright (2009) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in (Applied Physics Letters, 2009, v. 95 n. 15, article no. 153303 ) and may be found at (http://dx.doi.org/10.1063/1.3243991).-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.titleImpact of dye interlayer on the performance of organic photovoltaic devicesen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0003-6951&volume=95&spage=153303&epage=1 to 153303&date=2009&atitle=Impact+Of+Dye+Interlayer+On+The+Performance+Of+Organic+Photovoltaic+Devicesen_HK
dc.identifier.emailChan, MY:chanmym@hku.hken_HK
dc.identifier.authorityChan, MY=rp00666en_HK
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1063/1.3243991en_HK
dc.identifier.scopuseid_2-s2.0-70350048633en_HK
dc.identifier.hkuros170051en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-70350048633&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume95en_HK
dc.identifier.issue15, article no. 153303en_HK
dc.identifier.isiWOS:000270915700075-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridLai, SL=7402937153en_HK
dc.identifier.scopusauthoridLo, MF=24332794500en_HK
dc.identifier.scopusauthoridChan, MY=7402597725en_HK
dc.identifier.scopusauthoridLee, CS=35364273600en_HK
dc.identifier.scopusauthoridLee, ST=7601407495en_HK

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