Figure 2
From: Plasmon-enhanced Electrically Light-emitting from ZnO Nanorod Arrays/p-GaN Heterostructure Devices

(a) PL spectraof the ZnO nanorodsbefore and after Al NPs decoration. (b) Transmittance spectra of quartz substrate without and with Al NPs under the same sputtering conditions as the Al-decorated sample.(c) The normalized TRPL spectra and exponential decay fitting curve at the wavelength of 390 nm. Temporal spectroscopic profile of (d) the bare and (e) Al-decorated ZnO nanorods excited by 295 nm laser and collected by a streak camera.