Figure 2From: n-ZnO nanorods/p+-Si (111) heterojunction light emitting diodesXRD patterns of the ZnO nanorod arrays grown on p+- Si ( 111 ) substrate. (a) as-grown and after thermal annealing process at various temperatures (b) 200°C, (c) 400°C, (d) 600°C, and (e) 800°C, respectively.Back to article page