Improvement of electro-optic performances in white organic light emitting diodes with color stability by buffer layer and multiple dopants structure

Kou Zhi-Qi^†, Tang Yu, Yang Li-Ping, Yang Fei-Yu, Guo Wen-Jun

(color online) (a) Curves of current density and luminance versus voltage of devices A1–A4 and (b) plots of power efficiency and current efficiency versus current density of devices A1–A4.