OLEDs are earth-friendly, energy-efficient, all while being ultra-thin, flexible, and lightweight. They are the future of ultra-efficient lighting. Researchers are now coming up with new techniques to fabricate such sustainable and efficient OLEDs.
Solar panels are expensive because of the high-purity silicon present in them. A new material called perovskite rivals the solar conversion efficiency of silicon, but at a fraction of the cost. There is however still a lot of fundamental understanding to be done on perovskites, which these researchers do by studying analogous structures.