Multipeak Emissions and Electrical Properties of ZnO/Si Heterojunctions Based on ZnO Nanoflakes by Spin Coating Technique

Figure 2

(a) PL spectra of as-grown and annealed ZnO/Si heterojunctions. Inset: the plot of vs. from annealed ZnO/Si heterojunctions. (b) Decay curve of PL from annealed ZnO/Si heterojunctions at ∼393 nm and ∼500 nm.

(a)

(b)