High-stability, high-efficiency organic monoliths made of oligomer nanoparticles wrapped in organic matrix

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buir.contributor.authorDemir, Hilmi Volkan
buir.contributor.orcidDemir, Hilmi Volkan|0000-0003-1793-112X
dc.citation.epage5339en_US
dc.citation.issueNumber5en_US
dc.citation.spage5333en_US
dc.citation.volumeNumber10en_US
dc.contributor.authorSoran-Erdem Z.en_US
dc.contributor.authorErdem, T.en_US
dc.contributor.authorGungor K.en_US
dc.contributor.authorPennakalathil, J.en_US
dc.contributor.authorTuncel, D.en_US
dc.contributor.authorDemir, Hilmi Volkanen_US
dc.date.accessioned2018-04-12T10:50:48Z
dc.date.available2018-04-12T10:50:48Z
dc.date.issued2016en_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.departmentDepartment of Physicsen_US
dc.departmentDepartment of Chemistryen_US
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.description.abstractOligomer nanoparticles (OL NPs) have been considered unsuitable for solid-state lighting due to their low quantum yields and low temperature stability of their emission. Here, we address these problems by forming highly emissive and stable OL NPs solids to make them applicable in lighting. For this purpose, we incorporated OL NPs into sucrose matrix and then prepared their all-organic monoliths. We show that wrapping the OL NPs in sucrose significantly increases their quantum yield up to 44%, while the efficiency of their dispersion and direct solid-film remain only at ∼6%. We further showed ∼3-fold improved temperature stability of OL NP emission within these monoliths. Our experiments revealed that a physical passivation mechanism is responsible from these improvements. As a proof-of-concept demonstration, we successfully employed these high-stability, high-efficiency monoliths as color converters on a blue LED chip. Considering the improved optical features, low cost, and simplicity of the presented methodology, we believe that this study holds great promise for a ubiquitous use of organic OL NPs in lighting and possibly in other photonic applications.en_US
dc.identifier.doi10.1021/acsnano.6b01473en_US
dc.identifier.eissn1936-086X
dc.identifier.issn1936-0851
dc.identifier.urihttp://hdl.handle.net/11693/36722
dc.language.isoEnglishen_US
dc.publisherAmerican Chemical Societyen_US
dc.relation.isversionofhttp://dx.doi.org/10.1021/acsnano.6b01473en_US
dc.source.titleACS Nanoen_US
dc.subjectEfficiencyen_US
dc.subjectLight emitting diodesen_US
dc.subjectLightingen_US
dc.subjectNanoparticlesen_US
dc.subjectOligomersen_US
dc.subjectQuantum theoryen_US
dc.subjectQuantum yielden_US
dc.subjectStabilityen_US
dc.subjectSugar (sucrose)en_US
dc.subjectTemperatureen_US
dc.subjectCrystalline hostsen_US
dc.subjectLow-temperature stabilityen_US
dc.subjectOptical featuresen_US
dc.subjectPhotonic applicationen_US
dc.subjectProof of concepten_US
dc.subjectSolid state lightingen_US
dc.subjectTemperature stabilityen_US
dc.subjectMonolithic integrated circuitsen_US
dc.titleHigh-stability, high-efficiency organic monoliths made of oligomer nanoparticles wrapped in organic matrixen_US
dc.typeArticleen_US
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Department of Electrical and Electronics Engineering
Department of Chemistry
Department of Physics
Institute of Materials Science and Nanotechnology (UNAM)