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) Curves of CIE x and CIE y coordinates versus voltage of devices A3, B1, B2, and C1.