The 50th anniversary of the birth of the LED is being celebrated at the University of Illinois with participation from the LED inventor himself, Nick Holonyak Jr.
On the 9th of October 1962 Holonyak, who was then a consulting scientist at General Electric, demonstrated the first practical, visible spectrum LED at the company’s advanced semiconductor laboratory in Syracuse, New York. This first III-V alloy PN junction design is the prototype for all high-brightness LEDs made today.
Many of the researchers who studied under Holonyak have subsequently refined the technology, through improvements in crystal manufacturing techniques, to develop bright-light LEDs in every colour, including white.
Read more - http://www.lighting.co.uk/news/happy-50th-birthday-to-the-led/8636890.article
Tuesday, 9 October 2012
Monday, 17 September 2012
UK Carbon Trust pours cash into fuel cell systems
In a bid to reduce the costs of fuel cells for automobiles, the UK’s Carbon Trust (logo, pictured) has poured £1.95million into two fuel cell companies. The beneficiaries are ITM Power and ACAL Energy, which have the goal of delivering a step change to the cost of fuel cell technology: to around $35/kW. The investments are part of the Polymer Fuel Cells Challenge, which was set up in 2009.
Fuel cell systems that are currently under development are estimated to cost around $50/kW. However, the Carbon Trust believes that if fuel cell cars are to realistically compete with vehicles with internal combustion engines, then these costs must be reduced to around $35/kW. In order to achieve this cost reduction, it will be necessary to achieve significant technological breakthroughs and so now the Carbon Trust has turned to ACAL Energy and ITM Power to make the next step.
Read more - http://www.thegreencarwebsite.co.uk/blog/index.php/2012/09/04/uk-carbon-trust-pours-cash-into-fuel-cell-systems/
Fuel cell systems that are currently under development are estimated to cost around $50/kW. However, the Carbon Trust believes that if fuel cell cars are to realistically compete with vehicles with internal combustion engines, then these costs must be reduced to around $35/kW. In order to achieve this cost reduction, it will be necessary to achieve significant technological breakthroughs and so now the Carbon Trust has turned to ACAL Energy and ITM Power to make the next step.
Read more - http://www.thegreencarwebsite.co.uk/blog/index.php/2012/09/04/uk-carbon-trust-pours-cash-into-fuel-cell-systems/
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