The reflectance of ambient light on a light-emitting diode cathode can be reduced to less than 18 %! This is achieved by employing an oxygen-deficient zinc oxide layer between the cathode and the electron-transporting layer. The new structure provides a substantially enhanced contrast under ambient light conditions. The Figure shows devices without (left) and with (right) the zinc oxide layer (see also inside front cover).
No takes yet. Share an insight, caveat, or question.
Hung et al. (2001) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: