An organic electroluminescence device which exhibits an excellent purity of color and a high efficiency of light emission, has a long life and emits reddish light and a novel compound having these characteristics are provided.
The organic electroluminescence device comprises an organic layer disposed between at least one pair of electrodes, wherein the organic layer comprises a compound represented by general formula [1]:
wherein R1 to R14 each independently represent hydrogen atom, an alkyl group having 1 to 10 carbon atoms, an aryloxy group having 6 to 20 carbon atoms, an arylalkyl group having 6 to 20 carbon atoms, an aryl group having 6 to 30 carbon atoms, an arylamino group having 6 to 30 carbon atoms, an alkylamino group having 2 to 20 carbon atoms or an arylalkylamino group having 6 to 30 carbon atoms, the groups being substituted or unsubstituted; and at least one pair of R among R1 to R14 which are adjacent to each other do not represent hydrogen atom but represent groups which form a cyclic structure in combination.
本发明提供了一种颜色纯度高、发光效率高、寿命长并能发出红光的有机电致发光器件和一种具有这些特性的新型化合物。
该有机电致发光器件包括设置在至少一对电极之间的有机层,其中有机层包括通式[1]表示的化合物:
其中 R1 至 R14 各自独立地代表氢原子、具有 1 至 10 个碳原子的烷基、具有 6 至 20 个碳原子的芳氧基、具有 6 至 20 个碳原子的芳烷基、具有 6 至 30 个碳原子的芳基、具有 6 至 30 个碳原子的芳
氨基、具有 2 至 20 个碳原子的烷基
氨基或具有 6 至 30 个碳原子的芳烷基
氨基,这些基团可被取代或未被取代;R1 至 R14 中至少有一对相邻的 R 不代表氢原子,而是代表组合成环状结构的基团。