Lighting Industry, Products + Technology

Are Graphene Composite Heat Sinks & Housings Ready To Replace Aluminum?

New materials have changed the lighting industry before. The change from RGB to phosphor-converted white LEDs was enabled by InGaN blue-pump LED development. Similarly, many TIR lenses have shifted from polymers such as polycarbonate to optical silicone. I’ve also recently written about the great performance leaps of GaN-on-GaN transistors and their ability to double luminaire output or halve driver size. .

Graphene is a one-atom-thick layer of carbon atoms arranged in a hexagonal lattice. It is the building block of Graphite (which is used, among others things, in pencil tips), but graphene is a remarkable substance on its own – with a multitude of astonishing properties which repeatedly earn it the title “wonder material.” The 2010 Nobel prize in physics went to the two scientists who first isolated graphene in 2004.

Graphene composite heat sinks & housings can now significantly reduce weight and cost compared with typical aluminum alloys, for the same application.  The heat dissipation of graphene composites is the same as aluminum alloy but at a fraction of the cost.

Have you considered developing graphene composite heat sinks and housings? Share your findings and experience with this new approach in the comments below or send us an email – we are looking forward to learning more about this material.

Example of a graphene composite high bay luminaire.

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David Shiller
David Shiller is the Publisher of LightNOW, and President of Lighting Solution Development, a North American consulting firm providing business development services to advanced lighting manufacturers. The ALA awarded David the Pillar of the Industry Award. David has co-chaired ALA’s Engineering Committee since 2010. David established MaxLite’s OEM component sales into a multi-million dollar division. He invented GU24 lamps while leading ENERGY STAR lighting programs for the US EPA. David has been published in leading lighting publications, including LD+A, enLIGHTenment Magazine, LEDs Magazine, and more.


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