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dc.contributor.authorEid, Jessica
dc.contributor.authorLiang, Haifan
dc.contributor.authorGereige, Issam
dc.contributor.authorLee, Sang
dc.contributor.authorVan Duren, Jeroen K J
dc.date.accessioned2015-08-03T11:36:48Z
dc.date.available2015-08-03T11:36:48Z
dc.date.issued2013-12-04
dc.identifier.issn10627995
dc.identifier.doi10.1002/pip.2419
dc.identifier.urihttp://hdl.handle.net/10754/563143
dc.description.abstractWe report on a sodium fluoride (NaF) thickness variation study for the H2Se batch furnace selenization of sputtered Cu(In,Ga) films in a wide range of Cu(In,Ga) film compositions to form Cu(In,Ga)Se2 (CIGSe) films and solar cells. Literature review indicates lack of consensus on the mechanisms involved in Na altering CIGSe film properties. In this work, for sputtered and batch-selenized CIGSe, NaF addition results in reduced gallium content and an increase in grain size for the top portion of the CIGSe film, as observed by scanning electron microscopy and secondary ion mass spectrometry. The addition of up to 20nm of NaF resulted in an improvement in all relevant device parameters: open-circuit voltage, short-circuit current, and fill factor. The best results were found for 15nm NaF addition, resulting in solar cells with 16.0% active-area efficiency (without anti-reflective coating) at open-circuit voltage (VOC) of 674mV. © 2013 John Wiley & Sons, Ltd.
dc.publisherWiley-Blackwell
dc.subjectCIGSe absorber layer
dc.subjectCombinatorial sputtering
dc.subjectH2Se two-step process
dc.subjectNa incorporation
dc.subjectThin film solar cells (TFSCs)
dc.titleCombinatorial study of NaF addition in CIGSe films for high efficiency solar cells
dc.typeArticle
dc.contributor.departmentKAUST Solar Center (KSC)
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Division
dc.identifier.journalProgress in Photovoltaics: Research and Applications
dc.contributor.institutionIntermolecular, Inc.San Jose, CA, United States
kaust.personGereige, Issam
kaust.personEid, Jessica


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