| abstract |
An organic light emitting device having high luminous efficiency and high luminance light output at a low applied voltage is provided. An organic light-emitting device comprising a pair of electrodes, at least one of which is a transparent or translucent anode and cathode, and one or a plurality of organic layers containing an organic compound sandwiched between the pair of electrodes. An organic light emitting device in which at least one organic layer containing an organic compound contains at least one organic radical compound. The organic layer containing the organic radical compound is a hole injection layer, a hole transport layer, an electron injection layer, an electron transport layer, or a light emitting layer. [Selection figure] None |