graphene solar cells Archives – The Green Optimistic green tech news, since 2008 Sat, 09 Apr 2016 07:40:44 +0000 en-US hourly 1 https://wordpress.org/?v=7.0 2667534 Graphene Solar Cells Produce Electricity from Sun and Rain https://www.greenoptimistic.com/graphene-solar-cells-produce-power-from-sun-and-rain-20160408/ https://www.greenoptimistic.com/graphene-solar-cells-produce-power-from-sun-and-rain-20160408/#respond Fri, 08 Apr 2016 16:03:13 +0000 https://www.greenoptimistic.com/?p=59772 Adding graphene to solar cells makes them generate power from rain. Solar power has been on a continuous rise over the past decade. Rooftop solar is arguably the most common renewable energy source for home use, and solar power plants are arguably the biggest renewable energy large scale generators. But, regardless of all this, there […]

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]]> https://www.greenoptimistic.com/graphene-solar-cells-produce-power-from-sun-and-rain-20160408/feed/ 0 59772 New Graphene-Based Solar Cells Have Doubled Efficiency https://www.greenoptimistic.com/graphene-solar-cells-double-efficiency-20140116/ https://www.greenoptimistic.com/graphene-solar-cells-double-efficiency-20140116/#comments Thu, 16 Jan 2014 11:21:53 +0000 https://www.greenoptimistic.com/?p=45204 Continuously hearing about all the incredible properties of what is considered to be the greatest material on earth (sort of..), only makes us more agitated and impatient in waiting for the life-altering new product made of graphene. Although graphene could be used in numerous technologies and various applications, and there is no doubt it could change […]

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]]> https://www.greenoptimistic.com/graphene-solar-cells-double-efficiency-20140116/feed/ 1 45204 Graphene Solar Cells Could be More Efficient than Semiconductor https://www.greenoptimistic.com/graphene-solar-cells-efficient-20130304/ https://www.greenoptimistic.com/graphene-solar-cells-efficient-20130304/#respond Mon, 04 Mar 2013 20:17:55 +0000 https://www.greenoptimistic.com/?p=34390 Like the semiconductors silicon and gallium arsenide, graphene absorbs photons, but unlike these, the photon forces multiple electrons from their orbits, instead of just one. Semiconductor photovoltaic solar cells operate absorbing photons. When a photon is absorbed, it knocks a single electron out of place, which can be collected to generate an electric current. There […]

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]]> https://www.greenoptimistic.com/graphene-solar-cells-efficient-20130304/feed/ 0 34390 Semiconductors Grown on Graphene Could Revolutionize Solar Power and Electronics https://www.greenoptimistic.com/graphene-semiconductors-solar-power-20120912/ https://www.greenoptimistic.com/graphene-semiconductors-solar-power-20120912/#respond Wed, 12 Sep 2012 18:35:01 +0000 https://www.greenoptimistic.com/?p=25993 Graphene has been receiving a lot of worldwide attention, especially as a replacement for the rare and expensive silicon used in electronic devices today. Work has also been done to use the material for flexible devices, such as touch screens and solar cells. Researchers at the Norwegian University of Science and Technology [NTNU] have patented […]

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]]> https://www.greenoptimistic.com/graphene-semiconductors-solar-power-20120912/feed/ 0 25993 Graphene Solar Cells Reaching Record 8.6 Percent Efficiency https://www.greenoptimistic.com/graphene-solar-cells-reaching-record-8-6-percent-efficiency-20120521/ https://www.greenoptimistic.com/graphene-solar-cells-reaching-record-8-6-percent-efficiency-20120521/#respond Mon, 21 May 2012 16:25:03 +0000 https://www.greenoptimistic.com/?p=24586 A new efficiency record for graphene solar cells has been established by University of Florida in Gainesville researchers. The new solar cell, made of graphene impurified with an organic dopant now reaches an efficiency of 8.6 percent, versus the 1.9% of the previous iterations. Sefaattin Tongay and Arthur F. Hebard, the two researchers who published […]

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