An organic light-emitting device including: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode, the organic layer including an emission layer, wherein the organic layer includes a carbazole-based compound represented by Formula 1A or 1B:
When the carbazole-based compound represented by Formula 1A or 1B is included in the hole transport layer, an organic light-emitting device may have improved driving voltage, efficiency, luminance, and lifespan characteristics.
一种有机发光器件,包括:第一电极;与第一电极相对的第二电极;以及位于第一电极和第二电极之间的有机层,该有机层包括一个发射层,其中该有机层包括由式1A或1B表示的
咔唑基化合物:
当由式1A或1B表示的
咔唑基化合物包含在空穴传输层中时,有机发光器件的驱动电压、效率、亮度和寿命特性可能得到改善。