Atomic Movies May Help Explain Why Perovskite Solar Cells Are More Efficient
In recent years, perovskites have taken the solar cell industry by storm. They are cheap, easy to produce and very flexible in their applications. Their efficiency at converting light into electricity has grown faster than that of any other material — from under four percent in 2009 to over 20 percent in 2017 — and some experts believe that perovskites could eventually outperform the most common solar cell material, silicon.  [...]