light-emitting diodes Archives – The Green Optimistic green tech news, since 2008 Thu, 01 Aug 2013 14:47:05 +0000 en-US hourly 1 https://wordpress.org/?v=7.0 2667534 Scientists Found Means to Boost LED Efficiency https://www.greenoptimistic.com/led-efficiency-boost-20130801/ https://www.greenoptimistic.com/led-efficiency-boost-20130801/#respond Thu, 01 Aug 2013 14:47:01 +0000 https://www.greenoptimistic.com/?p=40102 Researchers from the Rensselaer Polytechnic Institute established the reason behind the loss of efficiency of light-emitting diodes (LEDs). The so-called “efficiency droop” causes as much as 20% greater electrical currents, preventing major improvements in LED lights for household needs. The study, published in the journal Applied Physical Letters, describes a phenomenon referred to as “electron leakage” […]

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]]> https://www.greenoptimistic.com/led-efficiency-boost-20130801/feed/ 0 40102 The LED Market to See Considerable Increase by 2021 https://www.greenoptimistic.com/pike-research-leds-market-20111130/ https://www.greenoptimistic.com/pike-research-leds-market-20111130/#respond Wed, 30 Nov 2011 19:24:34 +0000 https://www.greenoptimistic.com/?p=21338 The latest report from Pike Research shows that LED lighting will capture 52% of the Commercial Building Market by 2021. The price for these light-emitting diodes has already begun to decline. The researchers believe that the lighting industry will change significantly during the next five years than it has in the previous 50. Currently, the […]

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]]> https://www.greenoptimistic.com/pike-research-leds-market-20111130/feed/ 0 21338 The Cheapest LED Light Bulb Yet to be Launched in India: See How Little It'll Cost! https://www.greenoptimistic.com/dixon-led-bulb-india-20110831/ https://www.greenoptimistic.com/dixon-led-bulb-india-20110831/#respond Wed, 31 Aug 2011 19:37:11 +0000 https://www.greenoptimistic.com/?p=20308 Not only the Chinese are able to make things cheap. Now, a consortium of two Indian companies have announced their latest product: an LED light bulb that has the intensity of a 60-watt incandescent one. The cheapest LED light bulb ever can now retail for less than $15. Moreover, “the newly announced bulb fits perfectly […]

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]]> https://www.greenoptimistic.com/dixon-led-bulb-india-20110831/feed/ 0 20308 30% Efficiency with Gallium-Nitride Silicon Solar Cells https://www.greenoptimistic.com/30-efficiency-with-gallium-nitride-silicon-solar-cells-20090930/ https://www.greenoptimistic.com/30-efficiency-with-gallium-nitride-silicon-solar-cells-20090930/#respond Wed, 30 Sep 2009 20:31:33 +0000 https://www.greenoptimistic.com/?p=4594 The Phoenix-based company RoseStreet Labs Energy has developed a prototype solar cell that combines gallium-nitride with silicon, a technology that achieves an efficiency of 25 to 30 percent.

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