Amine-free Synthesis Of Cesium Lead Halide Perovskite Quantum Dots For Efficient Light-emitting Diodes

dc.creatorYassitepe
dc.creatorEmre; Yang
dc.creatorZhenyu; Voznyy
dc.creatorOleksandr; Kim
dc.creatorYounghoon; Walters
dc.creatorGrant; Castaneda
dc.creatorJuan Andres; Kanjanaboos
dc.creatorPongsakorn; Yuan
dc.creatorMingjian; Gong
dc.creatorXiwen; Fan
dc.creatorFengjia; Pan
dc.creatorJun; Hoogland
dc.creatorSjoerd; Comin
dc.creatorRiccardo; Bakr
dc.creatorOsman M.; Padilha
dc.creatorLazaro A.; Nogueira
dc.creatorAna F.; Sargent
dc.creatorEdward H.
dc.date2016
dc.datedez
dc.date2017-11-13T13:23:13Z
dc.date2017-11-13T13:23:13Z
dc.date.accessioned2018-03-29T05:55:54Z
dc.date.available2018-03-29T05:55:54Z
dc.identifierAdvanced Functional Materials. Wiley-v C H Verlag Gmbh, v. 26, p. 8757 - 8763, 2016.
dc.identifier1616-301X
dc.identifier1616-3028
dc.identifierWOS:000390118300020
dc.identifier10.1002/adfm.201604580
dc.identifierhttp://onlinelibrary.wiley.com/doi/10.1002/adfm.201604580/abstract
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/328057
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1365082
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionCesium 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.
dc.description26
dc.description47
dc.description8757
dc.description8763
dc.descriptionKing Abdullah University of Science and Technology (KAUST) [KUS-11-009-21]
dc.descriptionOntario Research Fund - Research Excellence Program
dc.descriptionNatural Sciences and Engineering Research Council of Canada (NSERC)
dc.descriptionFAPESP-BEPE [2014/18327-9]
dc.descriptionFAPESP [2013/05798-0, 2013/16911-2]
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.languageEnglish
dc.publisherWiley-V C H Verlag Gmbh
dc.publisherWeinhem
dc.relationAdvanced Functional Materials
dc.rightsfechado
dc.sourceWOS
dc.titleAmine-free Synthesis Of Cesium Lead Halide Perovskite Quantum Dots For Efficient Light-emitting Diodes
dc.typeArtículos de revistas


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