| abstract |
An organic light-emitting device includes an upper electrode, a lower electrode, and a light-emitting layer disposed between the upper and lower electrodes, wherein the light-emitting layer includes a host and a first dopant. The first dopant includes a pyridyltriazole derivative as an auxiliary ligand, the auxiliary ligand of the first dopant contains a functional group R1 or a functional group R2, and the first dopant is displaced toward a surface of the light emitting layer by the action of at least one of the functional groups R1 and R2, wherein the surface is on a side where the upper electrode is present, and also directed to a coating liquid for use in forming the light-emitting layer with an organic material. An organic light-emitting device is produced with the coating liquid, a light source apparatus includes the organic light-emitting device, and methods for manufacture thereof are disclosed. |