The present invention discloses a phosphorescent organic electroluminescence device including a hole transport layer, a luminescent layer and an electron transport layer, which are successively laminated. The luminescent layer has a double-layer structure comprising a hole transport material layer and an electron transport material layer. The hole transport material layer is arranged between the hole transport layer and the electron transport material layer. The electron transport material layer is arranged between the hole transport material layer and the electron transport layer. An exciplex is formed on the interface of contact between the hole transport material layer and the electron transport material layer. The hole transport material layer includes a host material, the host material being a material having hole transport capability; and the electron transport material layer includes a host material and a phosphorescent dye doped in the host material, the host material being a material having electron transport capability.
ORGANIC ELECTROPHOSPHORESCENCE DEVICES
ORGANISCHE ELEKTROLUMINESZVORRICHTUNG
DISPOSITIF À ÉLECTROPHOSPHORESCENCE ORGANIQUE
2020-05-13
Patent
Electronic Resource
English
IPC: | H10K |
New iridium derivatives with good electrophosphorescence properties [4416-112]
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