Energy

New Efficiency Record for Organic Solar Cells

Imec, Polyera, and Solvay have achieved a new world-record efficiency of 8.3% for polymer-based single junction organic solar cells in an inverted device stack. These performance results represent a crucial step towards successful commercialization of organic photovoltaic cells.

Posted in: News, News, Energy Efficiency, Renewable Energy, Solar Power

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How Terrain and Turbine Placement Affect Wind Energy Production

A miniature turbine measuring just 10 inches high is helping a research team led by Hui Hu - an Iowa State University associate professor of aerospace engineering - understand how hills, valleys, and the placement of turbines affect the productivity of onshore wind farms.

Posted in: News, News, Energy Efficiency, Renewable Energy, Wind Power

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Low-Power Quantum Computers

By 2017, quantum physics will help reduce the energy consumption of computers and cellular phones by up to a factor of 100. For research and industry, the power consumption of transistors is a key issue. The next step will likely come from tunnel-FET, a technology that takes advantage of a phenomenon referred to as quantum tunneling. At the École Polytechnique Fédérale de Lausanne (EPFL) in Switzerland, research is well underway.

Posted in: News, News, Computers, Power Management, Energy Efficiency

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Triple Step-Down LED Driver

The LT3597 from Linear Technology ((Milpitas, CA) is a 60-V triple step-down LED driver capable of achieving 10,000:1 digital PWM dimming at 100 Hz with fast NPN current sources driving up to 10 LEDs in each channel. LED dimming can also be achieved via analog control of the CTRL1-3 pin.

Posted in: Products, Products, Power Management, Power Supplies, Energy Efficiency, LEDs

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Voltage Increases Observed in Closely Packed Nanowires

Unexpected voltage increases of up to 25 percent in two barely separated nanowires have been observed at Sandia National Laboratories. Designers of next-generation devices using nanowires to deliver electric currents — including batteries and certain solar arrays — may need to make allowances for such surprise boosts.

Posted in: News, News, Batteries, Energy Efficiency, Solar Power

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Thinner Thermal Insulation for Better Energy Savings

In order to lower energy costs, more and more homeowners are investing in insulation facades. But the typical insulation layers on the market have one drawback: they add bulk. The thick outer skin changes the building’s visual appearance and can result in significant follow-up costs – with a need to fit new, deeper window sills and sometimes even roof extensions.

Posted in: News, News, Energy Efficiency, Plastics

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Boost Converter with Battery Management for Energy Harvesting

The bq25504 from Texas Instruments (Dallas, TX) is an integrated energy harvesting nanopower management solution for ultra low power applications. The boost converter is designed to efficiently acquire and manage the microwatts to miliwatts of power generated from a variety of DC sources like photovoltaic or thermal electric generators.

Posted in: Products, Products, Batteries, Energy Efficiency, Renewable Energy, Solar Power, Thermoelectrics, Environmental Monitoring

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