Figure 4
From: Plasmon-enhanced Electrically Light-emitting from ZnO Nanorod Arrays/p-GaN Heterostructure Devices
The EL spectra of the as-fabricated LED (a) without (b) with Al NPs decoration under different forward biases. The insets show two photographs of the EL emission from the ZnO nanorods/GaN heterojunction diodes (a) before and (b) after decorating with Al NPs.
