Air-Stable Surface-Passivated Perovskite Quantum Dots for Ultra-Robust, Single- and Two-Photon-Induced Amplified Spontaneous Emission

Handle URI:
http://hdl.handle.net/10754/596018
Title:
Air-Stable Surface-Passivated Perovskite Quantum Dots for Ultra-Robust, Single- and Two-Photon-Induced Amplified Spontaneous Emission
Authors:
Pan, Jun; Sarmah, Smritakshi P.; Banavoth, Murali ( 0000-0002-7806-2274 ) ; Dursun, Ibrahim ( 0000-0002-4408-3392 ) ; Peng, Wei ( 0000-0002-7168-9795 ) ; Parida, Manas R.; Liu, Jiakai; Sinatra, Lutfan ( 0000-0001-7034-7745 ) ; AlYami, Noktan; Zhao, Chao ( 0000-0002-9582-1068 ) ; Alarousu, Erkki; Ng, Tien Khee ( 0000-0002-1480-6975 ) ; Ooi, Boon S. ( 0000-0001-9606-5578 ) ; Bakr, Osman M. ( 0000-0002-3428-1002 ) ; Mohammed, Omar F. ( 0000-0001-8500-1130 )
Abstract:
We demonstrate ultra-air- and photostable CsPbBr3 quantum dots (QDs) by using an inorganic–organic hybrid ion pair as the capping ligand. This passivation approach to perovskite QDs yields high photoluminescence quantum yield with unprecedented operational stability in ambient conditions (60 ± 5% lab humidity) and high pump fluences, thus overcoming one of the greatest challenges impeding the development of perovskite-based applications. Due to the robustness of passivated perovskite QDs, we were able to induce ultrastable amplified spontaneous emission (ASE) in solution processed QD films not only through one photon but also through two-photon absorption processes. The latter has not been observed before in the family of perovskite materials. More importantly, passivated perovskite QD films showed remarkable photostability under continuous pulsed laser excitation in ambient conditions for at least 34 h (corresponds to 1.2 × 108 laser shots), substantially exceeding the stability of other colloidal QD systems in which ASE has been observed.
KAUST Department:
Solar and Photovoltaic Engineering Research Center (SPERC); Advanced Nanofabrication and Thin Film Core Lab; Imaging and Characterization Core Lab; Photonics Laboratory; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Citation:
Air-Stable Surface-Passivated Perovskite Quantum Dots for Ultra-Robust, Single- and Two-Photon-Induced Amplified Spontaneous Emission 2015, 6 (24):5027 The Journal of Physical Chemistry Letters
Publisher:
American Chemical Society (ACS)
Journal:
The Journal of Physical Chemistry Letters
Issue Date:
1-Dec-2015
DOI:
10.1021/acs.jpclett.5b02460
Type:
Article
ISSN:
1948-7185
Additional Links:
http://pubs.acs.org/doi/10.1021/acs.jpclett.5b02460
Appears in Collections:
Articles; Advanced Nanofabrication, Imaging and Characterization Core Lab; Photonics Laboratory; Solar and Photovoltaic Engineering Research Center (SPERC); Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorPan, Junen
dc.contributor.authorSarmah, Smritakshi P.en
dc.contributor.authorBanavoth, Muralien
dc.contributor.authorDursun, Ibrahimen
dc.contributor.authorPeng, Weien
dc.contributor.authorParida, Manas R.en
dc.contributor.authorLiu, Jiakaien
dc.contributor.authorSinatra, Lutfanen
dc.contributor.authorAlYami, Noktanen
dc.contributor.authorZhao, Chaoen
dc.contributor.authorAlarousu, Erkkien
dc.contributor.authorNg, Tien Kheeen
dc.contributor.authorOoi, Boon S.en
dc.contributor.authorBakr, Osman M.en
dc.contributor.authorMohammed, Omar F.en
dc.date.accessioned2016-02-10T13:00:04Zen
dc.date.available2016-02-10T13:00:04Zen
dc.date.issued2015-12-01en
dc.identifier.citationAir-Stable Surface-Passivated Perovskite Quantum Dots for Ultra-Robust, Single- and Two-Photon-Induced Amplified Spontaneous Emission 2015, 6 (24):5027 The Journal of Physical Chemistry Lettersen
dc.identifier.issn1948-7185en
dc.identifier.doi10.1021/acs.jpclett.5b02460en
dc.identifier.urihttp://hdl.handle.net/10754/596018en
dc.description.abstractWe demonstrate ultra-air- and photostable CsPbBr3 quantum dots (QDs) by using an inorganic–organic hybrid ion pair as the capping ligand. This passivation approach to perovskite QDs yields high photoluminescence quantum yield with unprecedented operational stability in ambient conditions (60 ± 5% lab humidity) and high pump fluences, thus overcoming one of the greatest challenges impeding the development of perovskite-based applications. Due to the robustness of passivated perovskite QDs, we were able to induce ultrastable amplified spontaneous emission (ASE) in solution processed QD films not only through one photon but also through two-photon absorption processes. The latter has not been observed before in the family of perovskite materials. More importantly, passivated perovskite QD films showed remarkable photostability under continuous pulsed laser excitation in ambient conditions for at least 34 h (corresponds to 1.2 × 108 laser shots), substantially exceeding the stability of other colloidal QD systems in which ASE has been observed.en
dc.language.isoenen
dc.publisherAmerican Chemical Society (ACS)en
dc.relation.urlhttp://pubs.acs.org/doi/10.1021/acs.jpclett.5b02460en
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in The Journal of Physical Chemistry Letters, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://pubs.acs.org/doi/10.1021/acs.jpclett.5b02460.en
dc.subjectCsPbBr3en
dc.subjectperovskiteen
dc.subjectquantum dotsen
dc.subjectsurface passivationen
dc.subjecttwo-photon absorptionen
dc.subjectphotostabilityen
dc.titleAir-Stable Surface-Passivated Perovskite Quantum Dots for Ultra-Robust, Single- and Two-Photon-Induced Amplified Spontaneous Emissionen
dc.typeArticleen
dc.contributor.departmentSolar and Photovoltaic Engineering Research Center (SPERC)en
dc.contributor.departmentAdvanced Nanofabrication and Thin Film Core Laben
dc.contributor.departmentImaging and Characterization Core Laben
dc.contributor.departmentPhotonics Laboratoryen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.identifier.journalThe Journal of Physical Chemistry Lettersen
dc.eprint.versionPost-printen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorPan, Junen
kaust.authorSarmah, Smritakshi P.en
kaust.authorBanavoth, Muralien
kaust.authorDursun, Ibrahimen
kaust.authorPeng, Weien
kaust.authorParida, Manas R.en
kaust.authorLiu, Jiakaien
kaust.authorSinatra, Lutfanen
kaust.authorAlYami, Noktanen
kaust.authorZhao, Chaoen
kaust.authorAlarousu, Erkkien
kaust.authorNg, Tien Kheeen
kaust.authorOoi, Boon S.en
kaust.authorBakr, Osman M.en
kaust.authorMohammed, Omar F.en
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