Zero-dimensional transistor harvests bubble energy wasted during water electrolysis
New LED streetlight design curbs light pollution
Streetlights illuminate the night, shining upon roadways and sidewalks across the world, but these ubiquitous elements of the urban environment are notoriously inefficient and major contributors to light ...
Researchers achieve higher solar-cell efficiency with zinc-oxide coating
(Phys.org) —Engineering researchers at the University of Arkansas have achieved the highest efficiency ever in a 9 millimeter-squared solar cell made of gallium arsenide. After coating the cufflink-sized ...
Two for one in solar power
Solar cells offer the opportunity to harvest abundant, renewable energy. Although the highest energy light occurs in the ultraviolet and visible spectrum, most solar energy is in the infrared. There is a ...
Obama to propose 'national plan' on climate change
US President Barack Obama will give a major speech on climate change Tuesday in which he will propose a "national plan" to curb carbon pollution despite resistance from Congress.
Big beats bolster solar cell efficiency
(Phys.org) —Playing pop and rock music improves the performance of solar cells, according to new research from scientists at Queen Mary University of London and Imperial College London.
World set to heat up despite clean-energy efforts, IEA warns
Global warming is set to heat up with temperatures rising to nearly twice targets set by the United Nations, the International Energy Agency warned on Tuesday.
Australia carbon tax repeal a 'perfect storm of stupidity'
Australia's axing of its carbon tax and a plan to replace it by offering incentives to polluters to increase their energy efficiency is "the perfect storm of stupidity", scientists and academics argue.
Team unveils foldable micro electric car, Armadillo-T (w/ Video)
Looking for a parking space for hours at a busy shopping mall or being stuck on roads jammed with cars releasing large amounts of carbon dioxide are all-too-familiar scenes for city dwellers.
Power plants: Researchers explore how to harvest electricity directly from plants
(Phys.org) —The sun provides the most abundant source of energy on the planet. However, only a tiny fraction of the solar radiation on Earth is converted into useful energy.
Graphene provides efficient electronics cooling
A layer of graphene can reduce the working temperature in hotspots inside a processor by up to 25 percent – which can significantly extend the working life of computers and other electronics. An international ...
Germany most energy efficient nation
Germany is the world's most energy efficient nation with strong codes on buildings while China is quickly stepping up its own efforts, an environmental group said Thursday.
New capacitors to improve electric vehicles
Scientists from the National Physical Laboratory (NPL) have developed a new lead-free, high temperature ceramic capacitor that could improve the efficiency and reliability of electric and hybrid vehicles.
Researchers develop completely new type of electrostatic generator
Water, a membrane with a tiny hole and a small metal plate: that's all that is required to generate a voltage of 20,000 volts. Researchers from the University of Twente MESA+ research institute have developed ...