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dc.contributor.authorDemir, Hilmi Volkanen_US
dc.contributor.authorErdem, T.en_US
dc.contributor.authorNizamoglu, S.en_US
dc.contributor.authorSun, X. W.en_US
dc.date.accessioned2015-07-28T12:00:38Z
dc.date.available2015-07-28T12:00:38Z
dc.date.issued2011en_US
dc.identifier.issn1818-2259
dc.identifier.urihttp://hdl.handle.net/11693/12218
dc.description.abstractHere the first photometric study of road-lighting white light-emitting diodes (WLEDs) integrated with semiconductor colloidal quantum dots (QDs) is reported enabling higher luminance than conventional light sources, specifically in mesopic vision regimes essential to street lighting. Investigating over 100 million designs uncovers that quality road-lighting QD-WLEDs, with a color quality scale and color rendering index >= 85, enables 13-35% higher mesopic luminance than the sources commonly used in street lighting. Furthermore, these QD-WLEDs were shown to be electrically more efficient than conventional sources with power conversion efficiencies >= 16-29%. Considering this fact, an experimental proof-of-concept QD-WLED was demonstrated, which is the first account of QD based color conversion custom designed for street lighting applications. The obtained white LED achieved the targeted mesopic luminance levels in accordance with the road lighting standards of the USA and the UK. These results indicate that road-lighting QD-WLEDs are strongly promising for energy-saving quality road lighting.en_US
dc.language.isoEnglishen_US
dc.source.titleSPIE Newsroomen_US
dc.relation.isversionofhttp://dx.doi.org/10.1117/2.1201102.003507en_US
dc.subjectQuantum dots (qds)en_US
dc.subjectLight-emitting diodes (leds)en_US
dc.subjectOutdoor lightingen_US
dc.subjectMesopic visionen_US
dc.subjectPhotometric designen_US
dc.titlePhotometric design of color-conversion LEDsen_US
dc.typeArticleen_US
dc.departmentDepartment of Physicsen_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.citation.spage1en_US
dc.citation.epage3en_US
dc.citation.volumeNumber3en_US
dc.citation.issueNumber6en_US
dc.identifier.doi10.1117/2.1201102.003507en_US
dc.publisherSPIEen_US
dc.contributor.bilkentauthorDemir, Hilmi Volkan


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