Rectenna Archives – The Green Optimistic green tech news, since 2008 Wed, 30 Sep 2015 06:23:52 +0000 en-US hourly 1 https://wordpress.org/?v=7.0 2667534 “Rectenna” Device Turns Light into Electricity in a Different Way https://www.greenoptimistic.com/rectenna-light-electricity/ https://www.greenoptimistic.com/rectenna-light-electricity/#respond Wed, 30 Sep 2015 06:23:52 +0000 https://www.greenoptimistic.com/?p=56830 Scientists at Georgia Tech have found a way to turn light directly into electricity with a device called an optical “rectenna”. The breakthrough’s goofy name comes from the fact that it is made of both an antenna and a rectifier diode. The technology is simple, efficient, and has the potential to completely change the way […]

The post “Rectenna” Device Turns Light into Electricity in a Different Way appeared first on The Green Optimistic.

]]> https://www.greenoptimistic.com/rectenna-light-electricity/feed/ 0 56830 Atomic Layer Deposition Increases Efficiency of Nighttime Solar Cells https://www.greenoptimistic.com/atomic-layer-deposition-increases-efficiency-of-nighttime-solar-cells-20130228/ https://www.greenoptimistic.com/atomic-layer-deposition-increases-efficiency-of-nighttime-solar-cells-20130228/#comments Thu, 28 Feb 2013 19:33:26 +0000 https://www.greenoptimistic.com/?p=34219 A promising new process, known as Atomic Layer Deposition, could potentially improve existing solar energy systems. The new technique has been invented by Brian Willis, an associate professor of chemical and biomolecular engineering at the University of Connecticut and the former director of UConn’s Chemical Engineering Program. He explored the so called rectennas, or nano-antennas, […]

The post Atomic Layer Deposition Increases Efficiency of Nighttime Solar Cells appeared first on The Green Optimistic.

]]> https://www.greenoptimistic.com/atomic-layer-deposition-increases-efficiency-of-nighttime-solar-cells-20130228/feed/ 1 34219 Volvo Japan and Dengyo Show 10kW Wireless Power Transmission System for EVs https://www.greenoptimistic.com/dengyo-volvo-wireless-system-10-kw-20120709/ https://www.greenoptimistic.com/dengyo-volvo-wireless-system-10-kw-20120709/#respond Mon, 09 Jul 2012 11:19:40 +0000 https://www.greenoptimistic.com/?p=25416 A new wireless power transmission system has been put up by Nihon Dengyo Kosaku and Volvo Technology Japan. Unlike previous versions developed by Dengyo, this one is able to transmit 10 kilowatts of electricity through microwaves at a distance of 4 to 6 meters. Although it is two times more powerful than what they’d already […]

The post Volvo Japan and Dengyo Show 10kW Wireless Power Transmission System for EVs appeared first on The Green Optimistic.

]]> https://www.greenoptimistic.com/dengyo-volvo-wireless-system-10-kw-20120709/feed/ 0 25416 Dengyo Unveils "Rectenna" Device That Harvests WiFi and DVB Signals https://www.greenoptimistic.com/dengyo-rectenna-wifi-dvb-20110805/ https://www.greenoptimistic.com/dengyo-rectenna-wifi-dvb-20110805/#respond Fri, 05 Aug 2011 16:31:27 +0000 https://www.greenoptimistic.com/?p=20002 Radio signals are mostly used for information transfer purposes, but the energy they contain is mostly left unused, bouncing off the various obstacles until all of it is transformed into lost heat. Nihon Dengyo Kosaku, a Japanese company, has come up with a device that harvests radio signals and uses their power.

The post Dengyo Unveils "Rectenna" Device That Harvests WiFi and DVB Signals appeared first on The Green Optimistic.

]]> https://www.greenoptimistic.com/dengyo-rectenna-wifi-dvb-20110805/feed/ 0 20002