A novel derivative of heterocyclic compound having nitrogen atom with a structure made by bonding special groups to benzimidazole, a material for an organic electroluminescence (EL) device comprising the derivative of heterocyclic compound having nitrogen atom and an organic electroluminescence device comprising at least one organic compound layer containing a light emitting layer sandwiched between a pair of electrodes, wherein the device contains the derivative of heterocyclic compound having nitrogen atom. An organic EL device achieving elevation of luminance and of efficiency in light emission even under low driving voltage is obtainable by an employment of the derivative of heterocyclic compound having nitrogen atom for at least one layer composing organic compound layers of the EL device.
一种新型的
杂环化合物衍
生物,其氮原子与
苯并咪唑结构上的特殊基团相连,用作有机电致发光(EL)器件的材料。该有机EL器件包括至少一个有机化合物层,其中夹在一对电极之间的是一个发光层,其中该器件包含具有氮原子的
杂环化合物衍
生物。通过在EL器件的有机化合物层中至少使用具有氮原子的
杂环化合物衍
生物,可以实现在低驱动电压下提高亮度和光发射效率的有机EL器件。