Research Article

A Flexible Blue Light-Emitting Diode Based on ZnO Nanowire/Polyaniline Heterojunctions

Figure 4

(a) EL spectrum of the ZnO NWs/PANi device measured under various biasing voltages. (b) Energy band diagrams of Au, PANi, ZnO NWs, and ITO layers.
870254.fig.004a
(a)
870254.fig.004b
(b)