ORGANIC ELECTROLUMINESCENCE ELEMENT, ELECTRONIC DEVICE, COMPOSITION, MATERIAL FOR ORGANIC ELECTROLUMINESCENCE ELEMENT, AND COMPOSITION FILM
申请人:IDEMITSU KOSAN CO.,LTD.
公开号:US20200365811A1
公开(公告)日:2020-11-19
An organic electroluminescence device includes an anode, a cathode, and at least one organic layer provided between the anode and the cathode, in which the at least one organic layer contains a first compound represented by a formula (1) and a second compound represented by a formula (2). In the formula (1), A
1
is a substituted or unsubstituted nitrogen-containing heterocyclic group having 5 to 24 ring atoms, and L
1
is a single bond, a substituted or unsubstituted divalent aryl group having 6 to 24 ring carbon atoms or a substituted or unsubstituted divalent heterocyclic group having 5 to 24 ring atoms. In the formula (2), X
1
is an oxygen atom or a sulfur atom.