Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/7056
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dc.contributor.authorAksoy, Erkan-
dc.contributor.authorDemir, Nuriye-
dc.contributor.authorVarlıklı, Canan-
dc.date.accessioned2018-12-19T13:35:19Z-
dc.date.available2018-12-19T13:35:19Z-
dc.date.issued2018-
dc.identifier.citationAksoy, E., Demir, N., and Varlıklı, C. (2018). White LED light production using dibromoperylene derivatives in down conversion of energy. Canadian Journal of Physics, 96(7), 734-739. doi:10.1139/cjp-2017-0752en_US
dc.identifier.issn0008-4204-
dc.identifier.urihttps://doi.org/10.1139/cjp-2017-0752-
dc.identifier.urihttp://hdl.handle.net/11147/7056-
dc.descriptionThis paper is part of a Special Issue entitled the 33rd International Physics Conference of Turkish Physical Society.en_US
dc.description.abstractPerylene derivatives of N,N′-bis(2,6-diisopropylphenyl)-1,6(7)-dibromoperylene-3,4,9,10-tetracarboxylic diimide (DBrPDI) and 1,7-dibromo perylene-3,4,9,10-tetracarboxylic acid butyl ester (DBrPTE) were synthesized, and their structural and optical characterizations were explored. Both DBrPDI and DBrPTE, which were utilized as wavelength converters on a GaN/InGaN based blue LED, were singlet sensitizers and had molar absorptivity constants around 104 Lmol-1cm-1. The blue LED that was used had Commission internationale de l'eclairage (CIE) coordinates of x, y = 0.13, 0.06; power and luminous efficiencies of 2.7 lm/W and 6.6 cd/A @5 mA, respectively. Because the fluorescence quantum yield of DBrPDI was much higher than that of DBrPTE, a meaningful white light efficiency was obtained with the diimide derivative. The use of DBrPDI resulted in white light with CIE coordinates of x, y = 0.34, 0.29 and luminous efficiency of 6.35 cd/A @5 mA, respectively. Using DBrPDI in a resin matrix resulted in more than three orders of magnitude increase in the luminous efficiency value (23.0 cd/A @5 mA) while the CIE coordinates remained the same. Whenever the applied current reached 20 mA, a CRI value of Ra = 90 was obtained.en_US
dc.language.isoenen_US
dc.publisherCanadian Science Publishingen_US
dc.relation.ispartofCanadian Journal of Physicsen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectDownconversionen_US
dc.subjectOrganic phosphoren_US
dc.subjectPeryleneen_US
dc.subjectPMMAen_US
dc.subjectWhite lighten_US
dc.titleWhite LED light production using dibromoperylene derivatives in down conversion of energyen_US
dc.typeConference Objecten_US
dc.authoridTR28656en_US
dc.institutionauthorVarlıklı, Canan-
dc.departmentİzmir Institute of Technology. Photonicsen_US
dc.identifier.volume96en_US
dc.identifier.issue7en_US
dc.identifier.startpage734en_US
dc.identifier.endpage739en_US
dc.identifier.wosWOS:000437293500015en_US
dc.identifier.scopus2-s2.0-85049564542en_US
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanıen_US
dc.identifier.doi10.1139/cjp-2017-0752-
dc.relation.doi10.1139/cjp-2017-0752en_US
dc.coverage.doi10.1139/cjp-2017-0752en_US
dc.identifier.wosqualityQ3-
dc.identifier.scopusqualityQ3-
item.openairetypeConference Object-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextWith Fulltext-
item.languageiso639-1en-
item.cerifentitytypePublications-
item.grantfulltextopen-
crisitem.author.dept04.04. Department of Photonics-
Appears in Collections:Photonics / Fotonik
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection
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