Research Article

Enhancing Color Purity and Stable Efficiency of White Organic Light Diodes by Using Hole-Blocking Layer

Figure 3

(a) EL spectra characteristics of various devices at injection current density of 100 mA/cm2. (b) CIE coordinates of various devices at current density of 100 mA/cm2.
915894.fig.003a
(a)
915894.fig.003b
(b)