Posts tagged: Graphene

‘Green’ Concrete Could Be Game-Changer For Construction Industry

Microscopic flakes of graphene add strength and durability — but also raise cost and safety concerns.   By: Kate Baggaley Scientists have been tinkering with concrete in an effort to improve upon the world’s most widely used construction material — and they’ve notched some notable successes. New forms of concrete can trap and store the greenhouse gas carbon dioxide, break […]

Graphene Layer Lets Solar Panels Generate Energy From Raindrops

BY: KESAVAN UNNIKRISHNAN Researchers in China have developed Graphene solar panels that can generate energy from raindrops. The solar panels with a respectable 6.53 percent solar-to-electric conversion efficiency allows generation of power during periods of clouds and rain. The team of researchers from the Ocean University of China in Qingdao and Yunnan Normal University in Kunming […]

MIT creates graphite ‘solar sponge’ that converts sunlight into steam with 85% efficiency

By Sebastian Anthony   MIT is reporting that it has created a new, cheap material — using a microwave, no less — that converts sunlight into steam with an amazing 85% efficiency. This could have major repercussions in the realms of desalination and sterilization, and perhaps for concentrated solar thermal power generation as well. The […]

Nanotech roundup: electricity from sewage, and self-cleaning solar panels

This month’s roundup includes a device for squeezing energy from wastewater, and a coating to keep solar panels clean Poopy Power One resource we are never short of is wastewater. It contains plenty of organic matter that could still produce useful energy, but the challenge is to do this efficiently. An attractive way is to […]

Solar power heads in a new direction: thinner

Atom-thick photovoltaic sheets could pack hundreds of times more power per weight than conventional solar cells. CAMBRIDGE, Mass. — Most efforts at improving solar cells have focused on increasing the efficiency of their energy conversion, or on lowering the cost of manufacturing. But now MIT researchers are opening another avenue for improvement, aiming to produce […]