- 专利标题: Organic light-emitting device having electron transport region including lanthanide and alkali metal halide
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申请号: US15904286申请日: 2018-02-23
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公开(公告)号: US10181572B2公开(公告)日: 2019-01-15
- 发明人: Eungdo Kim , Dongchan Kim , Wonjong Kim , Dongkyu Seo , Dahea Im , Sanghoon Yim , Wonsuk Han
- 申请人: Samsung Display Co., Ltd.
- 申请人地址: KR Yongin-si
- 专利权人: Samsung Display Co., Ltd.
- 当前专利权人: Samsung Display Co., Ltd.
- 当前专利权人地址: KR Yongin-si
- 代理机构: Lewis Roca Rothgerber Christie LLP
- 优先权: KR10-2015-0025922 20150224
- 主分类号: H01L29/08
- IPC分类号: H01L29/08 ; H01L51/50 ; H01L51/52 ; H01L51/00
摘要:
An organic light-emitting device includes a substrate, an anode on the substrate, a hole transport region on the anode, an emission layer on the hole transport region, an electron transport region on the emission layer, and a cathode on the electron transport region, wherein the electron transport region includes an electron injection layer including a first material including at least one of a halide of an alkali metal, and a second material including at least one of a lanthanide metal and a alkaline earth metal, and wherein the cathode contacts the electron injection layer and includes a first metal including at least one of silver, gold, platinum, copper, manganese, titanium, cobalt, nickel, and tungsten, and a second metal including at least one of a lanthanide metal and an alkaline earth metal, wherein an amount of the first metal is equal to or greater than that of the second metal.
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