Gallium Nitride structures for low-cost lighting

Saturday, 28 July, 2007

A UK consortium of organisations including Filtronic, QinetiQ, Forge Europa, Thomas Swan and Cambridge University has won a £3 million three-year contract within the British DTI technology program, to develop a route to low-cost LEDs for solid-state lighting.

High-brightness LEDs are a low-cost, long-life and efficient replacement for standard light bulbs, reducing energy requirements by at least 75%, representing major energy savings without the environmental problems and short lifetimes of other bulbs.

A major barrier to LED adoption has been the relatively high cost, but this project will use large-scale semiconductor processing methods for Gallium Nitride (GaN)-based light-emitting structures grown on silicon substrates to reduce costs and improve consistency.

The consortium brings together commodity semiconductor expertise, GaN growth capabilities and expertise in packaging and LED marketing, with the potential to provide a dramatic step forward on the solid-state lighting roadmap.

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