Organic light emitting element
Abstract:
Provided is an organic light emitting element including: an anode; a cathode; and an organic compound layer formed between the anode and the cathode and including a hole injection layer, a hole transport layer, and an emission layer, in which: the emission layer includes a host and a dopant; the hole transport layer includes a hole transport material having multiple aromatic hydrocarbon skeletons and a single bond for linking the aromatic hydrocarbon skeletons; the hole transport material has a triplet level T1 of 1.8 eV or more; the hole transport material has a hole mobility of 1×10−5 cm2/Vs or more; and the hole transport layer and the emission layer satisfy relationships represented by the following expression (1): |reduction potential of hole transport material|−|reduction potential of host|>0.1 V  (1) and the following expression (2): |HOMO level of hole transport material−HOMO level of host|
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