Amine-Free Synthesis of Cesium Lead Halide Perovskite Quantum Dots for Efficient Light-Emitting Diodes

Handle URI:
http://hdl.handle.net/10754/622102
Title:
Amine-Free Synthesis of Cesium Lead Halide Perovskite Quantum Dots for Efficient Light-Emitting Diodes
Authors:
Yassitepe, Emre; Yang, Zhenyu; Voznyy, Oleksandr; Kim, Younghoon; Walters, Grant; Castañeda, Juan Andres; Kanjanaboos, Pongsakorn; Yuan, Mingjian; Gong, Xiwen; Fan, Fengjia; Pan, Jun; Hoogland, Sjoerd; Comin, Riccardo; Bakr, Osman M. ( 0000-0002-3428-1002 ) ; Padilha, Lazaro A.; Nogueira, Ana F.; Sargent, Edward H.
Abstract:
Cesium lead halide perovskite quantum dots (PQDs) have attracted significant interest for optoelectronic applications in view of their high brightness and narrow emission linewidth at visible wavelengths. A remaining challenge is the degradation of PQDs during purification from the synthesis solution. This is attributed to proton transfer between oleic acid and oleylamine surface capping agents that leads to facile ligand loss. Here, a new synthetic method is reported that enhances the colloidal stability of PQDs by capping them solely using oleic acid (OA). Quaternary alkylammonium halides are used as precursors, eliminating the need for oleylamine. This strategy enhances the colloidal stability of OA capped PQDs during purification, allowing us to remove excess organic content in thin films. Inverted red, green, and blue PQD light-emitting diodes (LED) are fabricated for the first time with solution-processed polymer-based hole transport layers due to higher robustness of OA capped PQDs to solution processing. The blue and green LEDs exhibit threefold and tenfold improved external quantum efficiency (EQE), respectively, compared to prior related reports for amine/ammonium capped cross-linked PQDs. The brightest blue LED based on all inorganic CsPb(Br1- xClx)3 PQDs is also reported. © 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
KAUST Department:
KAUST Solar Center (KSC); Physical Sciences and Engineering (PSE) Division; KAUST Catalysis Center (KCC)
Citation:
Yassitepe E, Yang Z, Voznyy O, Kim Y, Walters G, et al. (2016) Amine-Free Synthesis of Cesium Lead Halide Perovskite Quantum Dots for Efficient Light-Emitting Diodes. Advanced Functional Materials 26: 8757–8763. Available: http://dx.doi.org/10.1002/adfm.201604580.
Publisher:
Wiley-Blackwell
Journal:
Advanced Functional Materials
KAUST Grant Number:
KUS-11-009-21
Issue Date:
31-Oct-2016
DOI:
10.1002/adfm.201604580
Type:
Article
ISSN:
1616-301X
Sponsors:
E.Y., Z.Y., and O.V. contributed equally to this work. This publication was based in part on work supported by the Award KUS-11-009-21, made by the King Abdullah University of Science and Technology (KAUST), by the Ontario Research Fund – Research Excellence Program, and by the Natural Sciences and Engineering Research Council of Canada (NSERC). E.Y. acknowledges support from FAPESP-BEPE (2014/18327-9) and FAPESP (2013/05798-0) fellowships. E.Y. acknowledges LNnano-CNPEM (TEM-19813) for high resolution TEM facility. J.A.C. and L.A.P. acknowledge the financial support from FAPESP (Project number 2013/16911-2). A.F.N. acknowledges FAPESP, CNPq, and INEO. The authors thank Dr. Y. Zhao for useful discussions. The authors thank L. Levina, E. Palmiano, R. Wolowiec, and D. Kopilovic for their technical help over the course of this study.
Additional Links:
http://onlinelibrary.wiley.com/doi/10.1002/adfm.201604580/full
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; KAUST Catalysis Center (KCC); KAUST Solar Center (KSC)

Full metadata record

DC FieldValue Language
dc.contributor.authorYassitepe, Emreen
dc.contributor.authorYang, Zhenyuen
dc.contributor.authorVoznyy, Oleksandren
dc.contributor.authorKim, Younghoonen
dc.contributor.authorWalters, Granten
dc.contributor.authorCastañeda, Juan Andresen
dc.contributor.authorKanjanaboos, Pongsakornen
dc.contributor.authorYuan, Mingjianen
dc.contributor.authorGong, Xiwenen
dc.contributor.authorFan, Fengjiaen
dc.contributor.authorPan, Junen
dc.contributor.authorHoogland, Sjoerden
dc.contributor.authorComin, Riccardoen
dc.contributor.authorBakr, Osman M.en
dc.contributor.authorPadilha, Lazaro A.en
dc.contributor.authorNogueira, Ana F.en
dc.contributor.authorSargent, Edward H.en
dc.date.accessioned2017-01-01T13:18:22Z-
dc.date.available2017-01-01T13:18:22Z-
dc.date.issued2016-10-31en
dc.identifier.citationYassitepe E, Yang Z, Voznyy O, Kim Y, Walters G, et al. (2016) Amine-Free Synthesis of Cesium Lead Halide Perovskite Quantum Dots for Efficient Light-Emitting Diodes. Advanced Functional Materials 26: 8757–8763. Available: http://dx.doi.org/10.1002/adfm.201604580.en
dc.identifier.issn1616-301Xen
dc.identifier.doi10.1002/adfm.201604580en
dc.identifier.urihttp://hdl.handle.net/10754/622102-
dc.description.abstractCesium lead halide perovskite quantum dots (PQDs) have attracted significant interest for optoelectronic applications in view of their high brightness and narrow emission linewidth at visible wavelengths. A remaining challenge is the degradation of PQDs during purification from the synthesis solution. This is attributed to proton transfer between oleic acid and oleylamine surface capping agents that leads to facile ligand loss. Here, a new synthetic method is reported that enhances the colloidal stability of PQDs by capping them solely using oleic acid (OA). Quaternary alkylammonium halides are used as precursors, eliminating the need for oleylamine. This strategy enhances the colloidal stability of OA capped PQDs during purification, allowing us to remove excess organic content in thin films. Inverted red, green, and blue PQD light-emitting diodes (LED) are fabricated for the first time with solution-processed polymer-based hole transport layers due to higher robustness of OA capped PQDs to solution processing. The blue and green LEDs exhibit threefold and tenfold improved external quantum efficiency (EQE), respectively, compared to prior related reports for amine/ammonium capped cross-linked PQDs. The brightest blue LED based on all inorganic CsPb(Br1- xClx)3 PQDs is also reported. © 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.en
dc.description.sponsorshipE.Y., Z.Y., and O.V. contributed equally to this work. This publication was based in part on work supported by the Award KUS-11-009-21, made by the King Abdullah University of Science and Technology (KAUST), by the Ontario Research Fund – Research Excellence Program, and by the Natural Sciences and Engineering Research Council of Canada (NSERC). E.Y. acknowledges support from FAPESP-BEPE (2014/18327-9) and FAPESP (2013/05798-0) fellowships. E.Y. acknowledges LNnano-CNPEM (TEM-19813) for high resolution TEM facility. J.A.C. and L.A.P. acknowledge the financial support from FAPESP (Project number 2013/16911-2). A.F.N. acknowledges FAPESP, CNPq, and INEO. The authors thank Dr. Y. Zhao for useful discussions. The authors thank L. Levina, E. Palmiano, R. Wolowiec, and D. Kopilovic for their technical help over the course of this study.en
dc.publisherWiley-Blackwellen
dc.relation.urlhttp://onlinelibrary.wiley.com/doi/10.1002/adfm.201604580/fullen
dc.subjectPerovskite quantum dotsen
dc.subjectQuantum dot LEDsen
dc.subjectQuarternary alkylammonium halidesen
dc.subjectTransient absorption spectroscopyen
dc.titleAmine-Free Synthesis of Cesium Lead Halide Perovskite Quantum Dots for Efficient Light-Emitting Diodesen
dc.typeArticleen
dc.contributor.departmentKAUST Solar Center (KSC)en
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentKAUST Catalysis Center (KCC)en
dc.identifier.journalAdvanced Functional Materialsen
dc.contributor.institutionDepartment of Electrical and Computer Engineering University of Toronto 10 King's College Road Toronto M5S 3G4Ontario Canadaen
dc.contributor.institutionInstituto de Química Universidade Estadual de Campinas (UNICAMP) Caixa Postal: 6154 13083-970 Campinas, São Paulo Brazilen
dc.contributor.institutionInstituto de Fisica Gleb Wataghin UNICAMP P.O. Box 6165 13083-859 Campinas, Sao Paulo Brazilen
dc.contributor.institutionMaterials Science and Engineering, Faculty of Science, Mahidol University, 272 Rama 6 Rd., Ratchathewi District, Bangkok, 10400, Thailanden
kaust.authorPan, Junen
kaust.authorBakr, Osman M.en
kaust.grant.numberKUS-11-009-21en
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