▎ 摘　　要

ZnO nanorods (NRs) were grown on graphene oxide (GO) with hydrothermal method and their structural, optical, and electrical properties were compared with those of ZnO NRs grown on quartz without GO. The enhancement of the crystallinity and the reduction of the oxygen vacancies of ZnO NRs on GO (ZnO/GO) were observed. TEM/EDS observation demonstrated the increase of oxygen concentration in ZnO NR by growing on GO due to the diffusion from the GO during solution synthesis process. From the conductivity measurement of a ZnO NR, however, the conductivity of ZnO NR on GO turned out to be much lower than that of ZnO NR on quartz. This confirms that diffused oxygen from GO fills the oxygen vacancies inside ZnO NRs, and that it leads to a decrease of the conductivity that is caused by the reduction of the charge-carrier concentration in ZnO NRs. These findings offer insightful information to apply high-performance ZnO/GO hybrid devices via process optimization.