efficient LEDs Archives – The Green Optimistic green tech news, since 2008 Wed, 05 Dec 2012 09:59:23 +0000 en-US hourly 1 https://wordpress.org/?v=7.0 2667534 Organic Light-Emitting Diodes Replace Indium-Oxide in Screen Displays https://www.greenoptimistic.com/organic-light-emitting-diodes-replace-indium-oxide-in-screen-displays-20121205/ https://www.greenoptimistic.com/organic-light-emitting-diodes-replace-indium-oxide-in-screen-displays-20121205/#respond Wed, 05 Dec 2012 09:59:22 +0000 https://www.greenoptimistic.com/?p=29357 A breakthrough development emerged from the U.S Department of Energy’s (DOE) Ames Laboratory. Scientists have discovered a way to replace breakable metal-oxide, indium tin oxide, used in screen displays in computers, TVs and cell phones, with a polymer in organic light emitting diodes (OLEDs). The findings were recently published in the journal Advanced Materials, with […]

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]]> https://www.greenoptimistic.com/organic-light-emitting-diodes-replace-indium-oxide-in-screen-displays-20121205/feed/ 0 29357 New MIT Research Produces “Free Light” From Bulbs https://www.greenoptimistic.com/mit-free-light-waste-heat-20120308/ https://www.greenoptimistic.com/mit-free-light-waste-heat-20120308/#respond Thu, 08 Mar 2012 17:33:08 +0000 https://www.greenoptimistic.com/?p=23165 What if light bulbs were as efficient as they should? There will be those of you who say: “Well, aren’t they already?” Actually… no, they’re not: they demand more electricity that would be needed to produce light and they shed the rest as heat. However, thanks to an MIT research team, that’s all about to […]

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