To provide a light-emitting material of a light emitting layer, particularly a dopant material or a host material of a light emitting layer emitting delayed fluorescence, or a material suitable for a hole blocking layer, as a material for an organic electroluminescent device having a high efficiency, and also to provide an organic photoluminescent device or an organic electroluminescent device having a high efficiency and a high luminance, particularly an organic EL device suppressed in the roll-off phenomenon, by using the material. A material for an organic electroluminescent device, containing a benzonitrile derivative of the following general formula (1), and an organic electroluminescent device containing a pair of electrodes and one layer or plural layers including at least a light emitting layer intervening between the electrodes, the organic electroluminescent device using the material.
提供一种发光层的
发光材料,特别是掺杂材料或发射延迟荧光的发光层的主材料,或适用于空穴阻挡层的材料,作为具有高效率的有机电致发光器件的材料,并提供一种使用该材料的具有高效率和高亮度的有机光致发光器件或有机电致发光器件,特别是抑制滚降现象的有机电致发光器件。一种用于有机电致发光器件的材料,含有以下通式(1)的
苯甲腈衍
生物,以及一种有机电致发光器件,该器件含有一对电极和一层或多层包括至少一个介于电极之间的发光层,该有机电致发光器件使用了该材料。