申请人:LG Chem, Ltd.
公开号:EP2752907A1
公开(公告)日:2014-07-09
The present disclosure provides an organic light emitting device that includes a first electrode, a second electrode, and two or more light emitting units provided between the first electrode and the second electrode, wherein a charge generation layer is provided between, among the light emitting units, two light emitting units that are adjacent to each other, an electron transport layer is provided between the charge generation layer and the light emitting unit placed closer to the first electrode of the two adjacent light emitting units, and the electron transport layer includes a first electron transport layer doped with an n-type dopant, and a second electron transport layer doped with a metal salt, metal oxide or organic metal salt.
本公开提供了一种有机发光器件,该器件包括第一电极、第二电极以及设置在第一电极和第二电极之间的两个或多个发光单元,其中,在发光单元中,相邻的两个发光单元之间设置有电荷发生层、在电荷发生层和相邻两个发光单元中更靠近第一电极的发光单元之间设有电子传输层,电子传输层包括掺杂有 n 型掺杂剂的第一电子传输层和掺杂有金属盐、金属氧化物或有机金属盐的第二电子传输层。