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Notre Dame heralds paint-on solar cells, wants to smear your home with its goop (video)
Leave it to the Fighting Irish to take a stab at solving the world's energy woes. Notre Dame researchers have successfully developed solar cells that can be easily painted on to any conductive surface. Imagine, for a moment, applying this solution to your home rather than attaching solar panels to the roof. The paint mixture incorporates quantum dots of titanium dioxide, which is then coated with either cadmium sulfide or cadmium selenide, and is then suspended in mixture of water and alcohol to create a spreadable compound that's capable of generating electricity. While its efficiency isn't currently much to crow home about -- which hovers around one-percent -- scientists are now actively pursuing ways to improve this aspect while making a more stable compound. Most importantly, the paint can be made cheaply and in large quantities, which suggests that even if efficiency remains in the doldrums, it may be a very worthwhile pursuit. Touchdown Jesus is already watching the video after the break.
Quantum dots could coat the world in nano-sized solar panels
We've long believed in the mystical power of quantum dots, so it makes perfect sense to us that one day they'll be used to fully harness the Sun God's rays and thereby save the planet. The nano-particles turn light into electricity, and could potentially be manufactured cheaply and abundantly enough to coat surfaces in current-generating paint. The main obstacle to this has so far been efficiency: the clever little dots just don't work very hard. However, scientists at the University of Toronto now claim to have discovered a fix. Instead of using a single layer of particles, which can only harvest one meager wavelength from the full gamut of solar light, they added a second coat on top and configured it to be sensitive to an additional part of the spectrum. By adding third and fourth layers, the researchers hope to achieve a commercially viable efficiency of 10-percent within the next five years. We humbly call on Ra to be pleased with their efforts.
