Fig. 6From: High-luminance perovskite light-emitting diodes with high-polarity alcohol solvent treating PEDOT:PSS as hole transport layerTop-view SEM images of MAPbBr3 films: a based on pristine PEDOT:PSS film and b–d based on PEDOT:PSS films treated with MeOH, EtOH, and IPA, respectivelyBack to article page