Thermally evaporated hybrid perovskite for hetero-structured green light-emitting diodes

Thermal evaporation of green-light emitting perovskite (MaPbBr(3)) films is reported. Morphological studies show that a soft thermal treatment is needed to induce an outstanding crystal growth and film organization. Hetero-structured light-emitting diodes, embedding as-deposited and annealed MAPbBr(3) films as active layers, are fabricated and their performances are compared, highlighting that the perovskite evolution is strongly dependent on the growing substrate, too. Published by AIP Publishing.