Fig. 2From: High-luminance perovskite light-emitting diodes with high-polarity alcohol solvent treating PEDOT:PSS as hole transport layerDevice performance of PeLEDs. a Luminance-voltage (L-V) curves. b Current density-voltage (J-V) curves. c Current efficiency-voltage (CE-V) curves. d Normalized EL spectra and photographs of PeLEDsBack to article page