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dc.contributor.authorEisner, Flurin
dc.contributor.authorSeitkhan, Akmaral
dc.contributor.authorHan, Yang
dc.contributor.authorKhim, Dongyoon
dc.contributor.authorYengel, Emre
dc.contributor.authorKirmani, Ahmad R.
dc.contributor.authorXu, Jixian
dc.contributor.authorGarcía de Arquer, F. Pelayo
dc.contributor.authorSargent, Edward H.
dc.contributor.authorAmassian, Aram
dc.contributor.authorFei, Zhuping
dc.contributor.authorHeeney, Martin
dc.contributor.authorAnthopoulos, Thomas D.
dc.date.accessioned2018-04-30T05:42:44Z
dc.date.available2018-04-30T05:42:44Z
dc.date.issued2018-04-25
dc.identifier.issn2367-198X
dc.identifier.doi10.1002/solr.201800076
dc.identifier.urihttp://hdl.handle.net/10754/627681
dc.description.abstractWe report the development of a solution-processed In2O3/ZnO heterojunction electron transport layer (ETL) and its application in high efficiency organic bulk-heterojunction (BHJ) and inorganic colloidal quantum dot (CQD) solar cells. Study of the electrical properties of this low-dimensional oxide heterostructure via field-effect measurements reveals that electron transport along the heterointerface is enhanced by more than a tenfold when compared to the individual single-layer oxides. Use of the heterojunction as the ETL in organic BHJ photovoltaics is found to consistently improve the cell's performance due to the smoothening of the ZnO surface, increased electron mobility and a noticeable reduction in the cathode's work function, leading to a decrease in the cells’ series resistance and a higher fill factor (FF). Specifically, non-fullerene based organic BHJ solar cells based on In2O3/ZnO ETLs exhibit very high power conversion efficiencies (PCE) of up to 12.8%, and high FFs of over 70%. The bilayer ETL concept is further extended to inorganic lead-sulphide CQD solar cells. Resulting devices exhibit excellent performance with a maximum PCE of 8.2% and a FF of 56.8%. The present results highlight the potential of multilayer oxides as novel ETL systems and lay the foundation for future developments.
dc.description.sponsorshipThe work reported here was supported by the King Abdullah University of Science and Technology (KAUST).
dc.publisherWiley
dc.relation.urlhttps://onlinelibrary.wiley.com/doi/full/10.1002/solr.201800076
dc.rightsArchived with thanks to Solar RRL
dc.subjectcolloidal quantum dot solar cells
dc.subjectelectron transport layers
dc.subjectindium oxide
dc.subjectorganic solar cells
dc.subjectzinc oxide
dc.titleSolution-Processed In2O3/ZnO Heterojunction Electron Transport Layers for Efficient Organic Bulk Heterojunction and Inorganic Colloidal Quantum-Dot Solar Cells
dc.typeArticle
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Division
dc.contributor.departmentMaterials Science and Engineering Program
dc.contributor.departmentKAUST Solar Center (KSC)
dc.identifier.journalSolar RRL
dc.eprint.versionPost-print
dc.contributor.institutionDepartment of Physics; The Centre for Plastic Electronics; Imperial College London; London SW7 2AZ UK
dc.contributor.institutionDepartment of Chemistry; The Centre for Plastic Electronics; Imperial College London; London SW7 2AZ UK
dc.contributor.institutionDepartment of Electrical and Computer Engineering; University of Toronto; Toronto Ontario M5S 3G4 Canada
kaust.personSeitkhan, Akmaral
kaust.personYengel, Emre
kaust.personKirmani, Ahmad R.
kaust.personAmassian, Aram
kaust.personAnthopoulos, Thomas D.


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