Advanced Materials

Optical materials: Solar cells step up

The Sun is our most promising source of clean and renewable energy. The energy that reaches the Earth from the Sun in an hour is almost equivalent to that consumed by humans over a year. Solar cells can tap ...

Nov 20, 2013
3.3 / 5 (3) 0

Harnessing randomness to improve lasers

Randomly arranged items usually have poor optical properties. The rough—or random—surface of a frosted-glass window, for example, obscures the view of an object. The optical industry therefore expends ...

Jan 15, 2014
3 / 5 (2) 0