发明名称 |
ORGANIC ELECTROLUMINESCENT ELEMENT |
摘要 |
An organic electroluminescence device, including: an anode; a cathode opposed to the anode; and a first emitting layer and a second emitting layer between the anode and the cathode in this sequence from the anode, wherein: the first emitting layer and the second emitting layer each include a host and a phosphorescent dopant; the host of the first emitting layer and the host of the second emitting layer each have a triplet energy of 2.8 eV or more; the host of the first emitting layer has an ionization potential of 5.5 eV or less; and an affinity Af1 of the host of the first emitting layer is smaller than an affinity Af2 of the host of the second emitting layer. |
申请公布号 |
US2013092913(A1) |
申请公布日期 |
2013.04.18 |
申请号 |
US201113702600 |
申请日期 |
2011.06.08 |
申请人 |
NISHIMURA KAZUKI;KUMA HITOSHI;HOSOKAWA CHISHIO;NAGASHIMA HIDEAKI;NUMATA MASAKI;IDEMITSU KOSAN CO.,LTD. |
发明人 |
NISHIMURA KAZUKI;KUMA HITOSHI;HOSOKAWA CHISHIO;NAGASHIMA HIDEAKI;NUMATA MASAKI |
分类号 |
H01L51/00 |
主分类号 |
H01L51/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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