An Ester‐Substituted Iridium Complex for Efficient Vacuum‐Processed Organic Light‐Emitting Diodes

Abstract Red OLED : An orange–red‐emitting iridium complex ( N958 ) was prepared, and its photophysical and device‐based characteristics were investigated. Despite N958 displaying quite poor photophysical properties in solution (acetonitrile), organic light‐emitting diode (OLED) devices based on the complex exhibit an efficiency close to 10 %. magnified image