Solar power is getting cheaper every year and that trend seems to never end. Now there’s a new (and maybe even cheaper) technology for solar energy generation. The reason this new approach of using perovskite solar cells is important is that it permits the easy implementation of solar technology into area previously considered impractical.
First created in 2012, perovskite solar cells have shown great promise in recent years as an affordable alternative to other solar technologies, such as photovoltaic cells typically used in solar panels. Now scientists from Wake Forest University and the University of Utah have described the very first example of field-effect modulation in perovskites (i.e. their use in transistors), with potentially far-reaching implications.
Until now, researchers have been unable to fabricate field-effect transistors to measure the charge transport of the materials. Necessary prerequisites for a material that forms an efficient solar cell are strong optical absorption and efficient charge carrier transport. With these first generation transistors, researchers from Wake Forest and Utah were able for the first time to directly measure the ability of hybrid perovskites to transport charge, widening the spectrum of possible applications of these materials.