New design of hybrid remote phosphor with single-layer graphene for application in high-power LEDs

•Remote phosphor using graphene was prepared for the generation of white LEDs.•Remote phosphor using graphene showed higher luminous flux properties.•Graphene plays an important role as a high thermal property.•Remote phosphor is a good candidate of heat dissipation in optoelectronic devices. A hybr...

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Bibliographic Details
Published in:Chemical engineering journal (Lausanne, Switzerland : 1996) Switzerland : 1996), 2016-03, Vol.287, p.511-515
Main Authors: Song, Young-Hyun, Ji, Eun Kyung, Bak, Sang-Hwan, Kim, Ye Na, Lee, Dong Bok, Jung, Mong Kwon, Jeong, Byung Woo, Yoon, Dae-Ho
Format: Article
Language:English
Subjects:
Graphene
High power LEDs
Remote phosphor
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Summary:•Remote phosphor using graphene was prepared for the generation of white LEDs.•Remote phosphor using graphene showed higher luminous flux properties.•Graphene plays an important role as a high thermal property.•Remote phosphor is a good candidate of heat dissipation in optoelectronic devices. A hybrid remote phosphor with single-layer graphene was developed for the fabrication of warm white LEDs, and with an off-the-shelf blue LED operating at 350mA it produced a high luminous flux of ∼64lm at 100°C. The remote use of a single layer of graphene with a phosphor has a multi-functional role that improves the luminous properties, long-term stability and thermal properties of LEDs. We suggest that it can be expected to play an important role as a promising candidate for next-generation remote phosphors of high-power LEDs.
ISSN:1385-8947
1873-3212
DOI:10.1016/j.cej.2015.11.093