Generation of white LED light by frequency downconversion using perylene-based dye

A high efficiency white light emitting diode (LED) was fabricated by generation of frequency downconversion from a GaN/InGaN blue LED. In place of conventional inorganic phosphors, a perylene-based dye was used for colour conversion. The resulting hybrid structure is analysed by focusing on the visu...

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Bibliographic Details
Published inElectronics letters Vol. 48; no. 22; p. 1
Main Authors Caruso, F, Mosca, M, Macaluso, R, Feltin, E, Calì, C
Format Journal Article
LanguageEnglish
Published Stevenage John Wiley & Sons, Inc 25.10.2012
Subjects
Color
Colour
Dyes
Focusing
Indium gallium nitrides
Light-emitting diodes
Photometry
White light
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Summary:A high efficiency white light emitting diode (LED) was fabricated by generation of frequency downconversion from a GaN/InGaN blue LED. In place of conventional inorganic phosphors, a perylene-based dye was used for colour conversion. The resulting hybrid structure is analysed by focusing on the visual performance of the realised LEDs employing the most relevant photometric parameters of a light source. Preparation of the organic polymer is described as well. The thermal stability of the dye was investigated and a simple structure which avoids colour degradation is proposed. [PUBLICATION ABSTRACT]
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0013-5194
1350-911X