Fig. 1From: Influence of indium-tin-oxide and emitting-layer thicknesses on light outcoupling of perovskite light-emitting diodesa Structure of the perovskite LED with a multi-layered structure for optical simulations. The molecular structures of the hole-transporting layer (poly-TPD), electron-transporting layer (TPBi), and emitting layer (perovskite) are included. b Refractive indexes of the layers in the perovskite LED as a function of wavelengthBack to article page