Organic light-emitting device, manufacturing method thereof and display panel

The invention provides an organic light-emitting device, a manufacturing method thereof and a display panel. The organic light-emitting device comprises a first electrode layer; a hole transport layer arranged above the first electrode layer; a light-emitting layer arranged at the side, away from the first electrode, of the hole transport layer; an n-type charge generation layer arranged at the side, far away from the hole transport layer, of the light-emitting layer and including an electron transport material doped with a metal material; an electron transport layer arranged at the side, away from the light-emitting layer, of the n-type charge generation layer; and a second electrode layer is arranged at the side, far away from the n-type charge generation layer, of the electron transmission layer. According to the organic light-emitting device, the total organic film thickness can be improved, and meanwhile, the device efficiency and the voltage are kept. 本申请提供一种有机电致发光器件、制作有机电致发光器件的方法及显示面板，其中，所述有机电致发光器件包括：第