White light generation tuned by dual hybridization of nanocrystals and conjugated polymers

Simple item page
buir.contributor.authorDemir, Hilmi Volkan
buir.contributor.orcidDemir, Hilmi Volkan|0000-0003-1793-112X
dc.citation.epage362-1en_US
dc.citation.spage362-13en_US
dc.citation.volumeNumber9en_US
dc.contributor.authorDemir, Hilmi Volkanen_US
dc.contributor.authorNizamoglu, S.en_US
dc.contributor.authorOzel, T.en_US
dc.contributor.authorMutlugun, E.en_US
dc.contributor.authorHuyal I.O.en_US
dc.contributor.authorSari, E.en_US
dc.contributor.authorHolder, E.en_US
dc.contributor.authorTian, N.en_US
dc.date.accessioned2016-02-08T10:12:43Z
dc.date.available2016-02-08T10:12:43Z
dc.date.issued2007en_US
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.departmentDepartment of Physicsen_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.departmentDepartment of Chemistryen_US
dc.description.abstractDual hybridization of highly fluorescent conjugated polymers and highly luminescent nanocrystals (NCs) is developed and demonstrated in multiple combinations for controlled white light generation with high color rendering index (CRI) (> 80) for the first time. The generated white light is tuned using layer-by-layer assembly of CdSe/ZnS core-shell NCs closely packed on polyfluorene, hybridized on near-UV emitting nitride-based light emitting diodes (LEDs). The design, synthesis, growth, fabrication and characterization of these hybrid inorganic-organic white LEDs are presented. The following experimental realizations are reported: (i) layer-by-layer hybridization of yellow NCs (λPL = 580nm) and blue polyfluorene (λPL = 439 nm) with tristimulus coordinates of (x, y) = (0.31, 0.27), correlated color temperature of Tc = 6962 K and CRI of R a = 53.4; (ii) layer-by-layer assembly of yellow and green NCs (λPL = 580 and 540 nm) and blue polyfluorene (λPL = 439 nm) with (x, y) = (0.23, 0.30), Tc = 14395 K and Ra = 65.7; and (iii) layer-by-layer deposition of yellow, green and red NCs (λPL = 580, 540 and 620 nm) and blue polyfluorene (λPL = 439 nm) with (x, y) = (0.38, 0.39), T c = 4052 K and Ra = 83.0. The CRI is demonstrated to be well controlled and significantly improved by increasing multi-chromaticity of the NC and polymer emitters.en_US
dc.description.provenanceMade available in DSpace on 2016-02-08T10:12:43Z (GMT). No. of bitstreams: 1 bilkent-research-paper.pdf: 70227 bytes, checksum: 26e812c6f5156f83f0e77b261a471b5a (MD5) Previous issue date: 2007en
dc.identifier.doi10.1088/1367-2630/9/10/362en_US
dc.identifier.issn1367-2630
dc.identifier.urihttp://hdl.handle.net/11693/23355
dc.language.isoEnglishen_US
dc.publisherInstitute of Physics Publishing Ltd.en_US
dc.relation.isversionofhttp://doi.org/10.1088/1367-2630/9/10/362en_US
dc.source.titleNew Journal of Physicsen_US
dc.titleWhite light generation tuned by dual hybridization of nanocrystals and conjugated polymersen_US
dc.typeArticleen_US

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
White light generation tuned by dual hybridization of nanocrystals and conjugated polymers.pdf
Size:
1.27 MB
Format:
Adobe Portable Document Format
Description:
Full Printable Version
Download

Collections

Scholarly Publications - UNAM
Scholarly Publications - Chemistry
Scholarly Publications - Electrical and Electronics Engineering
Scholarly Publications - Physics