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Article: In situ optical measurement of charge transport dynamics in organic photovoltaics

TitleIn situ optical measurement of charge transport dynamics in organic photovoltaics
Authors
Keywordstransient absorption
solar cells
Photovoltaics
organic
optical spectroscopy
charge transport
Issue Date2015
Citation
Nano Letters, 2015, v. 15, n. 2, p. 931-935 How to Cite?
Abstract© 2015 American Chemical Society. We present a novel experimental approach which allows extraction of both spatial and temporal information on charge dynamics in organic solar cells. Using the wavelength dependence of the photonic structure in these devices, we monitor the change in spatial overlap between the photogenerated hole distribution and the optical probe profile as a function of time. In a model system we find evidence for a buildup of the photogenerated hole population close to the hole-extracting electrode on a nanosecond time scale and show that this can limit charge transport through space-charge effects under operating conditions.
Persistent Identifierhttp://hdl.handle.net/10722/285754
ISSN
2023 Impact Factor: 9.6
2023 SCImago Journal Rankings: 3.411
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorChow, Philip C.Y.-
dc.contributor.authorBayliss, Sam L.-
dc.contributor.authorLakhwani, Girish-
dc.contributor.authorGreenham, Neil C.-
dc.contributor.authorFriend, Richard H.-
dc.date.accessioned2020-08-18T04:56:33Z-
dc.date.available2020-08-18T04:56:33Z-
dc.date.issued2015-
dc.identifier.citationNano Letters, 2015, v. 15, n. 2, p. 931-935-
dc.identifier.issn1530-6984-
dc.identifier.urihttp://hdl.handle.net/10722/285754-
dc.description.abstract© 2015 American Chemical Society. We present a novel experimental approach which allows extraction of both spatial and temporal information on charge dynamics in organic solar cells. Using the wavelength dependence of the photonic structure in these devices, we monitor the change in spatial overlap between the photogenerated hole distribution and the optical probe profile as a function of time. In a model system we find evidence for a buildup of the photogenerated hole population close to the hole-extracting electrode on a nanosecond time scale and show that this can limit charge transport through space-charge effects under operating conditions.-
dc.languageeng-
dc.relation.ispartofNano Letters-
dc.subjecttransient absorption-
dc.subjectsolar cells-
dc.subjectPhotovoltaics-
dc.subjectorganic-
dc.subjectoptical spectroscopy-
dc.subjectcharge transport-
dc.titleIn situ optical measurement of charge transport dynamics in organic photovoltaics-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1021/nl503687u-
dc.identifier.pmid25585168-
dc.identifier.scopuseid_2-s2.0-84922826207-
dc.identifier.volume15-
dc.identifier.issue2-
dc.identifier.spage931-
dc.identifier.epage935-
dc.identifier.eissn1530-6992-
dc.identifier.isiWOS:000349578000020-
dc.identifier.issnl1530-6984-

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