| 摘要 |
<p>Disclosed is an organic electroluminescent device (organic EL device) which has a simple structure and utilizes phosphorescence. The organic electroluminescent device is improved in luminous efficiency and secured of sufficient driving stability. Such an organic electroluminescent device comprises a light-emitting layer or a plurality of organic compound thin film layers including a light-emitting layer formed between a pair of electrodes. The light-emitting layer contains a compound composed of an Al complex of an oxyphenylbenzoxazole which is represented by the general formula (I) below as a host material, while containing an organic metal complex including Ru, Rh, Pd, Ag, Re, Os, Ir, Pt or Au as a guest material. (I) (In the formula, R1-R8 independently represent a hydrogen atom, an alkyl group, an aromatic group or the like; n represents 2 or 4; and Z represents an aromatic group, a triarylsilyl group or the like when n is 2, while representing Al(III) when n is 4.)</p> |
