Figure 3From: n-ZnO nanorods/p+-Si (111) heterojunction light emitting diodesMicro-PL spectra of annealed ZnO NRs grown on the p+- Si ( 111 ) substrates. (a) 200°C, (b) 400°C, (c) 600°C, and (d) 800°C, respectively.Back to article page