While this press release is a bit technical, it demonstrates the incredible potential of solar energy.
Nanotechnology is the ability to manipulate and engineer chemicals at the level of the atom or molecule. When they speak of a billionth of a meter, a human air is 40 millionths of a meter. The size of the solar "panel" layers the release discusses are more than a thousand times thinner than a human hair!
It is quite an amazing world we are living in!