The recombination mechanisms leading to amplified spontaneous emission at the true-green wavelength in CH3NH3PbBr3 perovskites

Handle URI:
http://hdl.handle.net/10754/346682
Title:
The recombination mechanisms leading to amplified spontaneous emission at the true-green wavelength in CH3NH3PbBr3 perovskites
Authors:
Priante, Davide ( 0000-0003-4540-2188 ) ; Dursun, Ibrahim ( 0000-0002-4408-3392 ) ; Alias, M. S.; Shi, Dong ( 0000-0003-4009-2686 ) ; Melnikov, V. A.; Ng, Tien Khee ( 0000-0002-1480-6975 ) ; Mohammed, Omar F. ( 0000-0001-8500-1130 ) ; Bakr, Osman M. ( 0000-0002-3428-1002 ) ; Ooi, Boon S. ( 0000-0001-9606-5578 )
Abstract:
We investigated the mechanisms of radiative recombination in a CH3NH3PbBr3 hybrid perovskite material using low-temperature, power-dependent (77K), and temperature-dependent photoluminescence (PL) measurements. Two bound-excitonic radiative transitions related to grain size inhomogeneity were identified. Both transitions led to PL spectra broadening as a result of concurrent blue and red shifts of these excitonic peaks. The red-shifted bound-excitonic peak dominated at high PL excitation led to a true-green wavelength of 553nm for CH3NH3PbBr3 powders that are encapsulated in polydimethylsiloxane. Amplified spontaneous emission was eventually achieved for an excitation threshold energy of approximately 350μJ/cm2. Our results provide a platform for potential extension towards a true-green light-emitting device for solid-state lighting and display applications.
KAUST Department:
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; KAUST Solar Center (KSC); Physical Sciences and Engineering (PSE) Division; Chemical Science Program; KAUST Catalysis Center (KCC); Electrical Engineering Program; Materials Science and Engineering Program; Photonics Laboratory
Citation:
The recombination mechanisms leading to amplified spontaneous emission at the true-green wavelength in CH3NH3PbBr3 perovskites 2015, 106 (8):081902 Applied Physics Letters
Publisher:
AIP Publishing
Journal:
Applied Physics Letters
Issue Date:
23-Feb-2015
DOI:
10.1063/1.4913463
Type:
Article
ISSN:
0003-6951; 1077-3118
Additional Links:
http://scitation.aip.org/content/aip/journal/apl/106/8/10.1063/1.4913463
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Electrical Engineering Program; Chemical Science Program; Materials Science and Engineering Program; Photonics Laboratory; KAUST Catalysis Center (KCC); KAUST Solar Center (KSC); Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorPriante, Davideen
dc.contributor.authorDursun, Ibrahimen
dc.contributor.authorAlias, M. S.en
dc.contributor.authorShi, Dongen
dc.contributor.authorMelnikov, V. A.en
dc.contributor.authorNg, Tien Kheeen
dc.contributor.authorMohammed, Omar F.en
dc.contributor.authorBakr, Osman M.en
dc.contributor.authorOoi, Boon S.en
dc.date.accessioned2015-03-16T05:29:18Zen
dc.date.available2015-03-16T05:29:18Zen
dc.date.issued2015-02-23en
dc.identifier.citationThe recombination mechanisms leading to amplified spontaneous emission at the true-green wavelength in CH3NH3PbBr3 perovskites 2015, 106 (8):081902 Applied Physics Lettersen
dc.identifier.issn0003-6951en
dc.identifier.issn1077-3118en
dc.identifier.doi10.1063/1.4913463en
dc.identifier.urihttp://hdl.handle.net/10754/346682en
dc.description.abstractWe investigated the mechanisms of radiative recombination in a CH3NH3PbBr3 hybrid perovskite material using low-temperature, power-dependent (77K), and temperature-dependent photoluminescence (PL) measurements. Two bound-excitonic radiative transitions related to grain size inhomogeneity were identified. Both transitions led to PL spectra broadening as a result of concurrent blue and red shifts of these excitonic peaks. The red-shifted bound-excitonic peak dominated at high PL excitation led to a true-green wavelength of 553nm for CH3NH3PbBr3 powders that are encapsulated in polydimethylsiloxane. Amplified spontaneous emission was eventually achieved for an excitation threshold energy of approximately 350μJ/cm2. Our results provide a platform for potential extension towards a true-green light-emitting device for solid-state lighting and display applications.en
dc.publisherAIP Publishingen
dc.relation.urlhttp://scitation.aip.org/content/aip/journal/apl/106/8/10.1063/1.4913463en
dc.rightsAll article content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License.en
dc.titleThe recombination mechanisms leading to amplified spontaneous emission at the true-green wavelength in CH3NH3PbBr3 perovskitesen
dc.typeArticleen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.contributor.departmentKAUST Solar Center (KSC)en
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentChemical Science Programen
dc.contributor.departmentKAUST Catalysis Center (KCC)en
dc.contributor.departmentElectrical Engineering Programen
dc.contributor.departmentMaterials Science and Engineering Programen
dc.contributor.departmentPhotonics Laboratoryen
dc.identifier.journalApplied Physics Lettersen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorAlias, Mohd Sharizalen
kaust.authorMelnikov, Vasilyen
kaust.authorMohammed, Omar F.en
kaust.authorBakr, Osman M.en
kaust.authorOoi, Boon S.en
kaust.authorPriante, Davideen
kaust.authorDursun, Ibrahimen
kaust.authorShi, Dongen
kaust.authorNg, Tien Kheeen
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