02 April 2013

£1m centre aims to cut cost of leds

A new £1million growth facility, aimed at reducing the cost of Gallium Nitride leds, has been opened in Cambridge.

Launched with funding from the EPSRC, the centre will be used to improve current methods for growing low cost leds on silicon substrates, which could cut their cost by more than 50%.

"At the moment, a 48W led lightbulb, made from GaN on sapphire leds, costs about £15," said Professor Sir Colin Humphreys, from Cambridge University's Department of Materials Science and Metallurgy. "That's a cost that you make back several times, because the bulbs last for so long, but it is too much to convince most customers to buy them.

"The research we have already performed on GaN on silicon leds, plus that which we will carry out in this new reactor, will mean that soon people will be able to buy an led bulb for just £3 instead."

As well as being used to make affordable, efficient led lighting, Prof Humphreys believes Gallium Nitride could also replace silicon in current power electronics devices.

"If we can replicate these devices with Gallium Nitride electronics, we believe that we could make them 40% more efficient," he said. "That in itself would translate into a 9% electricity saving in the UK, if applied across the board."

Author
Laura Hopperton

Supporting Information

Websites
http://www.cam.ac.uk/

Companies
University of Cambridge

This material is protected by Findlay Media copyright
See Terms and Conditions.
One-off usage is permitted but bulk copying is not.
For multiple copies contact the sales team.

Do you have any comments about this article?


Add your comments

Name
 
Email
 
Comments
 

Your comments/feedback may be edited prior to publishing. Not all entries will be published.
Please view our Terms and Conditions before leaving a comment.

Related Articles

Four IDEs for Kinetis support

Freescale has named four tools as featured integrated development environments ...

Sensor market back on track

Emerging markets such as the Internet of Things, wearable electronics and the ...

NFC added to certification

The Wi-Fi Alliance has updated one of its more popular product certification ...

LED bulb 'achieves impossible'

"It was a technical challenge to make 50 units that met a certain ...

A/D converters get it right

Successive approximation A/D converters, with resolutions of up to 18bit and ...

Boosting LED performance

Energy efficiency and longevity have made LEDs the light source of choice in a ...

Power electronics in EVs

This whitepaper presents a review of power electronics systems in electric ...

NI Trend Watch 2014

This report from National Instruments summarises the latest trends in the ...

EV power electronics

This whitepaper from Altera describes the benefits of using fpga based control ...

Dual DC/DC converters

Linear Technology has announced the LT8471, a dual DC/DC converter that ...

High voltage power module

Intersil has announced the ISL8216M – an 80V, 4A non-isolated DC/DC step down ...

Adjustable LDO regulator

The AZ2085 from Diodes is an adjustable LDO regulator with a minimum load ...

Future World Symposium 2014

29th - 30th April 2014, Twickenham Stadium, London

PCIM Europe 2014 Conference

20th – 22nd May 2014, Nuremburg, Germany

RF & Wireless forum

9th September 2014, Manchester, UK

NexFET MOSFETs from TI

In this video product marketing engineer, Rich Nowakowski, discusses a family ...

How to power Altera FPGAs

Watch this video to learn how to efficiently power Altera FPGAs.

TI power design tools

Discover and get to market faster with TI Power Design Tools; easy-to-use ...

Packing a powerful punch

Power is back when it comes to industrial system performance and efficiency. ...

Smartwatches and Sir Clive

All the excitement about smartwatches brings to mind the Sinclair Wrist ...

You will buy a smartwatch

The announcement yesterday by Google that it is extending Android into the ...

Gregg Lowe, Freescale

Freescale's new ceo tells Graham Pitcher that, while he's not 'dancing' yet, ...

Menno Treffers, WPC chairman

There are now 110 consumer electronics products that are authorised by the ...

Keith Attwood, ceo, e2v

Many UK based technology companies can trace their origins to the years ...