Nature World: Powering your tablet could soon be as simple as wrapping it in cling wrap, thanks to a team of scientists that recently invented a way to spray on solar power.
Lead researcher Illan Kramer and his colleagues at the University of Toronto developed miniscule light-sensitive materials called colloidal quantum dots (CQDs) that can be used to spray solar cells onto virtually any surface, from patio furniture to an airplane's wing.
The breakthrough has the potential to make manufacturing solar cells...