申请人:LG CHEM, LTD.
公开号:US20220173318A1
公开(公告)日:2022-06-02
Provided is an organic light emitting device including a positive electrode, a negative electrode, and an organic material layer provided between the positive electrode and the negative electrode, wherein the organic material layer comprises a hole transport material having a HOMO absolute value of 4.30 eV to 4.60 eV, and a reversibility value (I
r
/I
f
) of 0.83 or higher within an oxidation range at a scan rate of 100 mV/s, or the organic material layer comprises an electron blocking material having a reversibility value (I
r
/I
f
) of more than 0.5 within an oxidation range at a scan rate of 100 mV/s, or the organic material layer comprises an electron transport material having a LUMO absolute value of 2.60 eV to 2.90 eV, and a reversibility value (I
r
/I
f
) larger than [
4.96−1.535
×(the LUMO absolute value)] within a reduction range at a scan rate of 100 mV/s.