- 专利标题： Organic light-emitting device having multi-layered electron blocking layer and P-doped layer
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申请号： US15674550申请日： 2017-08-11
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公开(公告)号： US10297777B2公开(公告)日： 2019-05-21
- 发明人: Jongsoo Kim , Hosuk Kang , Sunghan Kim , Joonghyuk Kim , Youngmok Son , Myungsun Sim , Namheon Lee , Sooghang Ihn
- 申请人： SAMSUNG ELECTRONICS CO., LTD. , Samsung SDI Co., Ltd.
- 申请人地址： KR Gyeonggi-DO
- 专利权人： SAMSUNG ELECTRONICS CO., LTD.
- 当前专利权人： SAMSUNG ELECTRONICS CO., LTD.
- 当前专利权人地址： KR Gyeonggi-DO
- 代理机构： Cantor Colburn LLP
- 优先权： KR10-2016-0102441 20160811
- 主分类号： H01L51/50
- IPC分类号： H01L51/50
摘要：
An organic light-emitting device includes a first electrode layer; a hole injection layer on the first electrode layer; a hole transport layer on the hole injection layer; an electron blocking layer on the hole transport layer, and including a plurality of layers; a light-emitting layer on the electron blocking layer; an electron transport layer on the light-emitting layer; an electron injection layer on the electron transport layer; and a second electrode layer on the electron transport layer, wherein the electron blocking layer has a highest occupied molecular orbital value which is lower than a highest occupied molecular orbital value of the hole transport layer, and the light-emitting layer has a HOMO value which is lower than a highest occupied molecular orbital value of the electron blocking layer.