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dc.contributor.author
Sukharevska, Nataliia
dc.contributor.author
Bederak, Dmytro
dc.contributor.author
Goossens, Vincent M.
dc.contributor.author
Momand, Jamo
dc.contributor.author
Duim, Herman
dc.contributor.author
Dirin, Dmitry N.
dc.contributor.author
Kovalenko, Maksym V.
dc.contributor.author
Kooi, Bart J.
dc.contributor.author
Loi, Maria A.
dc.date.accessioned
2021-03-03T16:11:16Z
dc.date.available
2021-03-03T08:33:35Z
dc.date.available
2021-03-03T16:11:16Z
dc.date.issued
2021-02-03
dc.identifier.issn
1944-8244
dc.identifier.issn
1944-8252
dc.identifier.other
10.1021/acsami.0c18204
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/472641
dc.identifier.doi
10.3929/ethz-b-000472641
dc.description.abstract
The recent development of phase transfer ligand exchange methods for PbS quantum dots (QD) has enhanced the performance of quantum dots solar cells and greatly simplified the complexity of film deposition. However, the dispersions of PbS QDs (inks) used for film fabrication often suffer from colloidal instability, which hinders large-scale solar cell production. In addition, the wasteful spin-coating method is still the main technique for the deposition of QD layer in solar cells. Here, we report a strategy for scalable solar cell fabrication from highly stable PbS QD inks. By dispersing PbS QDs capped with CH3NH3PbI3 in 2,6-difluoropyridine (DFP), we obtained inks that are colloidally stable for more than 3 months. Furthermore, we demonstrated that DFP yields stable dispersions even of large diameter PbS QDs, which are of great practical relevance owing to the extended coverage of the near-infrared region. The optimization of blade-coating deposition of DFP-based inks enabled the fabrication of PbS QD solar cells with power conversion efficiencies of up to 8.7%. It is important to underline that this performance is commensurate with the devices made by spin coating of inks with the same ligands. A good shelf life-time of these inks manifests itself in the comparatively high photovoltaic efficiency of 5.8% obtained with inks stored for more than 120 days.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
American Chemical Society
en_US
dc.rights.uri
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject
quantum dots
en_US
dc.subject
lead sulfide
en_US
dc.subject
solar cells
en_US
dc.subject
blade coating
en_US
dc.subject
colloidal stability
en_US
dc.subject
scalable fabrication
en_US
dc.subject
perovskite ligands
en_US
dc.subject
phase transfer ligand exchange
en_US
dc.title
Scalable PbS Quantum Dot Solar Cell Production by Blade Coating from Stable Inks
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
dc.date.published
2021-01-20
ethz.journal.title
ACS Applied Materials & Interfaces
ethz.journal.volume
13
en_US
ethz.journal.issue
4
en_US
ethz.journal.abbreviated
ACS Appl Mater Interfaces
ethz.pages.start
5195
en_US
ethz.pages.end
5207
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Washington, DC
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02020 - Dep. Chemie und Angewandte Biowiss. / Dep. of Chemistry and Applied Biosc.::02513 - Laboratorium für Anorganische Chemie / Laboratory of Inorganic Chemistry::03934 - Kovalenko, Maksym / Kovalenko, Maksym
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02020 - Dep. Chemie und Angewandte Biowiss. / Dep. of Chemistry and Applied Biosc.::02513 - Laboratorium für Anorganische Chemie / Laboratory of Inorganic Chemistry::03934 - Kovalenko, Maksym / Kovalenko, Maksym
ethz.date.deposited
2021-03-03T08:33:56Z
ethz.source
SCOPUS
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2021-03-03T16:11:26Z
ethz.rosetta.lastUpdated
2022-03-29T05:36:15Z
ethz.rosetta.versionExported
true
ethz.COinS
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