Electron Beam Evaporated TiO2 Layer for High Efficiency Planar Perovskite Solar Cells on Flexible Polyethylene Terephthalate Substrates

Handle URI:
http://hdl.handle.net/10754/579436
Title:
Electron Beam Evaporated TiO2 Layer for High Efficiency Planar Perovskite Solar Cells on Flexible Polyethylene Terephthalate Substrates
Authors:
Qiu, Weiming; Paetzold, Ulrich W; Gehlhaar, Robert; Smirnov, Vladimir; Boyen, Hans-Gerd; Tait, Jeffrey Gerhart; Conings, Bert; Zhang, Weimin; Nielsen, Christian; McCulloch, Iain ( 0000-0002-6340-7217 ) ; Froyen, Ludo; Heremans, Paul; Cheyns, David
Abstract:
The TiO2 layer made by electron beam (e-beam) induced evaporation is demonstrated as electron transport layer (ETL) in high efficiency planar junction perovskite solar cells. The temperature of the substrate and the thickness of the TiO2 layer can be easily controlled with this e-beam induced evaporation method, which enables the usage of different types of substrates. Here, Perovskite solar cells based on CH3NH3PbI3-xClx achieve power conversion efficiencies of 14.6% on glass and 13.5% on flexible plastic substrates. The relationship between the TiO2 layer thickness and the perovskite morphology is studied with scanning electron microscope (SEM), atomic force microscope (AFM), and X-ray photoelectron spectroscopy (XPS). Our results indicate that pinholes in thin TiO2 layer lead to pinholes in the perovskite layer. By optimizing the TiO2 thickness, perovskite layers with substantially increased surface coverage and reduced pinhole areas are fabricated, increasing overall device performance.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
Electron Beam Evaporated TiO2 Layer for High Efficiency Planar Perovskite Solar Cells on Flexible Polyethylene Terephthalate Substrates 2015 J. Mater. Chem. A
Publisher:
Royal Society of Chemistry (RSC)
Journal:
J. Mater. Chem. A
Issue Date:
30-Sep-2015
DOI:
10.1039/C5TA07515G
Type:
Article
ISSN:
2050-7488; 2050-7496
Additional Links:
http://pubs.rsc.org/en/Content/ArticleLanding/2015/TA/C5TA07515G
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorQiu, Weimingen
dc.contributor.authorPaetzold, Ulrich Wen
dc.contributor.authorGehlhaar, Roberten
dc.contributor.authorSmirnov, Vladimiren
dc.contributor.authorBoyen, Hans-Gerden
dc.contributor.authorTait, Jeffrey Gerharten
dc.contributor.authorConings, Berten
dc.contributor.authorZhang, Weiminen
dc.contributor.authorNielsen, Christianen
dc.contributor.authorMcCulloch, Iainen
dc.contributor.authorFroyen, Ludoen
dc.contributor.authorHeremans, Paulen
dc.contributor.authorCheyns, Daviden
dc.date.accessioned2015-10-07T09:09:57Zen
dc.date.available2015-10-07T09:09:57Zen
dc.date.issued2015-09-30en
dc.identifier.citationElectron Beam Evaporated TiO2 Layer for High Efficiency Planar Perovskite Solar Cells on Flexible Polyethylene Terephthalate Substrates 2015 J. Mater. Chem. Aen
dc.identifier.issn2050-7488en
dc.identifier.issn2050-7496en
dc.identifier.doi10.1039/C5TA07515Gen
dc.identifier.urihttp://hdl.handle.net/10754/579436en
dc.description.abstractThe TiO2 layer made by electron beam (e-beam) induced evaporation is demonstrated as electron transport layer (ETL) in high efficiency planar junction perovskite solar cells. The temperature of the substrate and the thickness of the TiO2 layer can be easily controlled with this e-beam induced evaporation method, which enables the usage of different types of substrates. Here, Perovskite solar cells based on CH3NH3PbI3-xClx achieve power conversion efficiencies of 14.6% on glass and 13.5% on flexible plastic substrates. The relationship between the TiO2 layer thickness and the perovskite morphology is studied with scanning electron microscope (SEM), atomic force microscope (AFM), and X-ray photoelectron spectroscopy (XPS). Our results indicate that pinholes in thin TiO2 layer lead to pinholes in the perovskite layer. By optimizing the TiO2 thickness, perovskite layers with substantially increased surface coverage and reduced pinhole areas are fabricated, increasing overall device performance.en
dc.language.isoenen
dc.publisherRoyal Society of Chemistry (RSC)en
dc.relation.urlhttp://pubs.rsc.org/en/Content/ArticleLanding/2015/TA/C5TA07515Gen
dc.rightsArchived with thanks to J. Mater. Chem. Aen
dc.titleElectron Beam Evaporated TiO2 Layer for High Efficiency Planar Perovskite Solar Cells on Flexible Polyethylene Terephthalate Substratesen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalJ. Mater. Chem. Aen
dc.eprint.versionPost-printen
dc.contributor.institutionImec, Kapeldreef 75, 3001, Heverlee, Belgiumen
dc.contributor.institutionMTM, KU Leuven, 3001, Heverlee, Belgiumen
dc.contributor.institutionESAT, KU Leuven, 3001, Heverlee, Belgiumen
dc.contributor.institutionIEK5#Photovoltaik, Forschungszentrum Juelich GmbH, D#52425, Germanyen
dc.contributor.institutionDepartment of Chemistry and Centre for Plastic Ele ctronics, Imperial College London, SW7 2AZ, UKen
dc.contributor.institutionInstitute for Materials Research, University of Ha sselt, 3590, Belgiumen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorMcCulloch, Iainen
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