Study of energy transfer in single and multi-emissive layer using Gaussian peak fitting

White organic light-emitting diodes(WOLEDs) were fabricated with the device structure of ITO(1800Å)/NPB(700Å)/emissive layer(300Å)/Bphen(300Å)/Liq(20Å)/Al(1200Å) using the two complementary colors method. Then, we investigated their electrical and optical characteristics to determine luminous efficiency, luminance and color coordinates of single, double, triple and quadruple emissive layered-WOLED. Thickness of emissive layer was fixed at 30Å, …