Highly Conductive Polymer Anodes as Replacements for Inorganic Materials in High‐Efficiency Organic Light‐Emitting Diodes

Abstract

Highly conductive polymer anodes are compared to ITO contacts for organic LEDs (OLEDs). The polymer PEDOT:PSS exhibits a conductivity of 500 S cm–1 and enables improved device performance and lower operating voltages compared to ITO-based devices (see figure). Red, green, and blue OLEDs with polymer anodes achieve device efficiencies of 15.9, 63.5, and 4.0 lm W–1, respectively.