A novel fabrication technique developed by UConn engineering professor Brian Willis could provide the breakthrough technology scientists have been looking for to vastly improve today’s solar energy systems. The potential breakthrough lies in a novel fabrication process called selective area atomic layer deposition (ALD) that was developed by Willis, an associate professor of chemical, materials, and biomolecular engineering and the previous director of UConn’s Chemical Engineering Program. Willis joined UConn in 2008 as part of an eminent faculty hiring initiative that brought an elite team of leaders in sustainable energy technology to the University. Willis developed the ALD process while teaching at the University of Delaware, and patented the technique in 2011. It is through atomic layer deposition that scientists can finally fabricate a working rectenna device. In a rectenna device, one of the two interior electrodes must have a sharp tip, similar to the point of a triangle. The secret is getting the tip of that electrode within one or two nanometers of the opposite electrode, something similar to holding the point of a needle to the plane of a wall. Before the advent of ALD, existing lithographic fabrication techniques had been unable to create such a small space within a working electrical diode. Using sophisticated electronic equipment such as electron guns, the closest scientists could get was about 10 times the required separation. Through atomic layer deposition, Willis has shown he is able to precisely coat the tip of the rectenna with layers of individual copper atoms until a gap of about 1.5 nanometers is achieved. The process is self-limiting and stops at 1.5 nanometer separation.
As the concentrated solar power industry turns its attention to the Middle East and North Africa, CSP Today is hosting a webinar to discuss the opportunities on 12 February 2013.
Johannesburg, South Africa — February 4, 2013
With 16 weeks before the opening of All-Energy 2013, the UK's largest renewable energy exhibition and conference, key component parts are all in place. Some of the influential speakers taking part in the multi-stream conference have been announced, as has a new and invaluable feature - The Energy Hu
The ever increasing demand of petroleum products and the shortage of qualified professionals make the oil and gas industry a very interesting sector to break into.
Statement from SEIA President and CEO Rhone Resch on the Notice of the Departure of Energy Secretary Steven Chu:
SEIA applauds Secretary Chu for his outstanding leadership of the Department of Energy and for his work to foster the growth of clean energy technologies to power America.
IKEA Plugs-in South Florida's Largest Solar Energy System and Becomes State's Largest Non-Utility Solar Owner, as Company Reaches 80% Solar Presence on Its U.S. Locations
This installation represents the 35th completed solar project for IKEA in the U.S.
Rivičre-du-Moulin Wind Project will be the largest wind energy facility in Canada with a single Power Purchase Agreement when commissioned.
It will be the state's largest solar power project
In December 2012, Vista Solar installed a 259 kW solar system for U.S. Trading Company, and the system is set to save the company almost $3.5 million in utility costs in the coming years.
Popular Twitter Chat Presented Live for Solar Industry Professionals, With Fundraiser Benefitting the Heather Andrews Scholarship Fund
Program eases local and state government access to affordable American-made solar systems
In addition to Roberto, the DWEA board welcomed three additional industry leaders.
GE Introduces 2.5-120, the World's Most Efficient High-Output Wind Turbine—the First Brilliant Wind Turbine
Combines World-Class Efficiency and Power Output at Low Wind Speed Sites, Delivering Lower Cost of Electricity for Customers***** The 2.5-120 is GE's First Brilliant Wind Turbine Integrating Energy Storage, Advanced Controls and Forecasting Algorithms***** Analyzing and Communicating Tens of Thousands of Data Points a Second, Driving Higher Wind Farm Output, Services Productivity and New Revenue Streams for Customers
NextEnergy Signs Ambassador Pledge to Support the U.S. Department of Energy's Workplace Charging Challenge
Detroit-based organization joins 13 major employers and seven industry stakeholders to support challenge launched to expand workplace charging availability for U.S. employees
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Solar & Wind - Featured Product
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