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dc.contributor.authorLee, Y. -Jen_US
dc.contributor.authorWang, J.en_US
dc.contributor.authorHsu, J. W. P.en_US
dc.date.accessioned2014-07-28T19:13:58Z
dc.date.available2014-07-28T19:13:58Z
dc.date.created2013-10-24
dc.date.submitted2013-08-12en_US
dc.identifier.issn0003-6951en_US
dc.identifier.urihttp://hdl.handle.net/10735.1/3832
dc.description.abstractSurface photovoltage response in bulk heterojunction organic solar cells is determined using a Kelvin probe with variable illumination intensity and wavelength. The effect of device architecture, carrier transport layers, donor:acceptor combinations, and device processing conditions are studied. We observe a positive (negative) surface photovoltage response, corresponding to efficient accumulation of electrons (holes) at the top electrode in conventional (inverted) devices. The linear relationship between surface photovoltage and log(intensity) and the agreement with open circuit voltage indicate that surface photovoltage magnitude quantifies the separation of photogenerated carriers in organic solar cells at open circuit condition.en_US
dc.description.sponsorship"This project was financially supported by the University of Texas at Dallas. The authors thank Professor Iain Baikie and Professor Leeor Kronik for fruitful discussions on the theory of surface photovoltage measurement. J.W.P.H. acknowledges the Texas Instruments Distinguished Chair in Nanoelectronics.en_US
dc.language.isoenen_US
dc.relation.urihttp://dx.doi.org/10.1063/1.4827104en_US
dc.rights©2013 AIP Publishing LLCen_US
dc.subjectSurface photovoltage (SPV)en_US
dc.subjectSolar cellsen_US
dc.subjectIllumination intensityen_US
dc.subjectBulk heterojunction (BHJ)en_US
dc.subjectPhenyl c-61 butyric acid methyl ester (PCBM)en_US
dc.titleSurface Photovoltage Characterization of Organic Photovoltaic Devicesen_US
dc.typetexten_US
dc.type.genrearticleen_US
dc.identifier.bibliographicCitationLee, Y. -J, J. Wang, and J. W. P. Hsu. 2013. "Surface photovoltage characterization of organic photovoltaic devices." 103(173302): 1-5.
dc.source.journalApplied Physics Lettersen_US
dc.identifier.volume103en_US
dc.identifier.issue173302en_US
dc.contributor.ISNI0000 0003 8600 0978 (Hsu, JWP)
dc.contributor.VIAF243648305 (Hsu, JWP)


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