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LED product to boost efficiency

Seren Photonics has worked with a researcher from Sheffield University to develop an LED that offers significantly improved energy efficency.
Seren Photonics is working to create next-generation light emitting diodes (LEDs) that could deliver twice the energy efficiency of the best LEDs currently on the market.

Tao Wang, a reader in the Department of Electronic and Electrical Engineering at Sheffield University, has developed a technique for the transformation of gallium nitride (GaN) microcrystals into LEDs with fewer defects than the most perfect crystals that can be produced today.

As a result, when a current is passed through the LED, a greater proportion of the electrions are turned into photons, creating a brighter and more efficient light source.

The firm noted one of the major benefits of this technique is that it can utilise GaN crystals of any quality, thereby significantly reducing production costs.

Elsewhere, a recent report into the LED and metal-organic chemical vapour deposition markets from IMS Research showed Nichia is presently leading the way in the high-brightness LED field, with a 42 per cent market share.
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