Stanford researchers have disclosed a new family of white light emitting perovskites with photoluminescence quantum efficiencies (PLQEs) of up to 9%, which show stable emission over at least three months of continuous irradiation.
Solar cells containing halide perovskite absorbers have shown large improvements in power conversion efficiency over the last eight years and now exceed 20%. This makes them competitive with many commercial technologies like polycrystalline silicon and CdTe.