The effect of pre-annealing of sputtered ZnO seed layers on growth of ZnO nan…

Abstract Oriented ZnO nanorods were grown on ionbeam-sputtered ZnO seed layers through a hydrothermal approach without any metal catalyst. The sputtered ZnO seed layers were pre-annealed at different temperatures before the growth of ZnO nanorods. The effects of pre-annealing of the ZnO seed layers on the growth rate, crystallinity and optical properties of ZnO nanorods thereon were studied. …