Solar Cell “Wonder Material”—Perovskite—Falls Short of Expectations

Hugh Cowley for Scientific American:  Perovskites have arguably transformed solar energy more in the last few years than other technologies have in decades. But British researchers have called into question optimistic predictions of undiscovered perovskites.

Hybrid perovskites are a mix of organic and inorganic ions with the same crystal structure as calcium titanium oxide (CaTiO3). Halide perovskites are a subset of these structures containing halide ions such as fluoride or chloride. Iodide perovskites such as methylammonium lead iodide (CH3NH3PbI3) can convert sunlight to electricity.

Researchers use a decades-old geometric 'tolerance factor' to propose new combinations of ions that will form stable perovskites. Now, Robert Palgrave and his team at University College London, UK, have reassessed the validity of the tolerance factor in predicting new hybrid perovskite structures.  Cont'd...

Comments (0)

This post does not have any comments. Be the first to leave a comment below.


Post A Comment

You must be logged in before you can post a comment. Login now.

Featured Product

Canadian Solar - HiKuBlack - Black Backsheet & Frame (Mono)

Canadian Solar - HiKuBlack - Black Backsheet & Frame (Mono)

Aesthetic appearance for residential systems: With black backsheet & black frame, Power range 380 ~ 405 W, Low power loss in cell connection. Enhanced reliability: · Low temperature coefficient (Pmax): -0.34 % / °C, LID LeTID less than 2.0%, Lower hot spot temperature, Better shading tolerance.