| 摘要 |
Disclosed is an organic electroluminescent element (organic EL element) that has improved light-emitting efficiency of the element, sufficiently secures driving stability, and has a simple configuration. In this organic EL element, an anode, an organic layer containing a phosphorescent light-emitting layer, and a cathode are layered on a substrate, and an indolocarbazole compouond represented by general formula 1 is contained within at least one organic layer selected from a light-emitting layer, an electron transport layer, and a hole-blocking layer. When the indolocarbazole compound is contained in the light-emitting layer, which containins a phosphorescent light-emitting dopant and a host material, the indolocarbazole compound is contained as the host material. The compound represented by the belowmentioned formula (2) exists as an indolocarbazole compound. A1 and A2 represent an aromatic hydrocarbon group; B1 and B2 represent an aromatic heterocycle group; R1 through R3 represent hydrogen, an alkyl group, a cycloalkyl group, an aromatic hydrocarbon group, or an aromatic heterocycle group; m represents an integer from 1 to 3; and n represents an integer from 0 to 3. |
