electroluminescent units in tandem organic light-emitting diodes (OLEDs). In this study, we
demonstrate that Mg: Ag alloy is an effective connecting electrode for bottom-and top-
emitting tandem OLEDs. Optical cavity design and simulation are also conducted to predict
the luminance of tandem OLEDs. It is found that the theoretical luminance of tandem OLEDs
is close to but not higher than twofold enhancement over the luminance of a single OLED …