Organic electroluminescent device comprising electrontransport layer and electron buffer layer
申请人:ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD
公开号:US11183640B2
公开(公告)日:2021-11-23
The present disclosure relates to an organic electroluminescent device comprising a first electrode, a second electrode facing the first electrode, a light-emitting layer between the first electrode and the second electrode, and an electron transport layer and an electron buffer layer between the light-emitting layer and the second electrode. An organic electroluminescent device having low driving voltage, high luminous efficiency and/or long lifespan can be provided by comprising the compound of the present disclosure in an electron buffer layer and an electron transport layer.
本公开涉及一种有机电致发光器件,该器件包括第一电极、与第一电极相对的第二电极、位于第一电极和第二电极之间的发光层,以及位于发光层和第二电极之间的电子传输层和电子缓冲层。通过在电子缓冲层和电子传输层中加入本公开的化合物,可提供具有低驱动电压、高发光效率和/或长使用寿命的有机电致发光器件。