Organic electroluminescent compound and organic electroluminescent device comprising the same
申请人:DOW GLOBAL TECHNOLOGIES LLC
公开号:US11316114B2
公开(公告)日:2022-04-26
The present invention relates to an organic EL device comprising an electron buffer material, and a first electrode, a second electrode opposing the first electrode, a light-emitting layer disposed between the two electrodes, and an electron transport zone and an electron buffer layer disposed between the light-emitting layer and the second electrode. By using an electron buffer material according to the present invention, the organic EL device having low driving voltage, high luminous efficiency, and excellent lifespan can be provided.
本发明涉及一种有机电致发光器件,包括电子缓冲材料、第一电极、与第一电极相对的第二电极、设置在两个电极之间的发光层,以及设置在发光层和第二电极之间的电子传输区和电子缓冲层。通过使用本发明的电子缓冲材料,可以提供驱动电压低、发光效率高、寿命长的有机电致发光器件。