Influence Of AZO Seed Layer And Ag-doped On The Growth Of ZnO Nanorods Prepared Hydrothermal Method

Zinc oxide(ZnO) is a new type of broadband gap compound, and it is the N-type semiconductor material。Under normal temperature, its forbidden band width is 3.37 eV and the exciton binding energy is 60 MeV 。 And its material rich, low cost, non-toxic characteristics, make it has great research potential and application value, and then become the research hot spot. Using zinc oxide in aspects such as optical, electricity, magnetic unique excellent performance, can make light-emitting devices, sensors, solar cells, ultraviolet emitter, image recording materials, efficient catalyst, piezoelectric materials, electronic display screen, etc. Now, using the method of hydrothermal growth of nanorods technology has been mature perfect, but its growth orientation can grow along the c axis preferred this problem remains to be solved.So this article take the preparation of seed layer in the selection, selection of aluminum doped zinc oxide(AZO) as target material, aluminum doped zinc oxide as a seed layer can have prompted the growth of the ZnO nanorods perpendicular to sink guiding role, also can make the nanorods and achieve better the role of lattice mismatch between substrate. In addition, the pure ZnO resistivity is very low, but through effective doping, can make its become a p-type semiconductor, has a broad application prospect. Studies have shown that Ag is worth studying doping elements that can make the ZnO from N-type into p-type doping. So this paper focuses on research under the induction of AZO seed layer, AZO seed layer and Ag doping ratio on the influence of the structure and optical properties of ZnO nanorods.This article is to adopt dc magnetron sputtering on glass slide preparation of aluminum doped zinc oxide(AZO) on the seed layer, then puts it into the doped with different proportions of Ag zinc nitrate solution, and choose hydrothermal preparation of silver doped zno nanorods. And according to the changing conditions of experimental parameters, such as changing AZO seed layer, sputtering time and Ag doping ratio, using XRD(X-ray diffraction), SEM(scanning electron microscope), PL(photoluminescence spectrum), and other means, and detailed study of the AZO seed layer and Ag doping ratio on the influence of the structure and optical properties of ZnO nanorods.The experimental results show that the seeds of AZO layer prepared by magnetron sputtering method, under the condition that 15 min in sputtering, Ag doping ratio for zinc: Ag = 1:0. 03, the growth of ZnO nanorods crystallization quality is best, and ultraviolet light emitting peak enhanced obviously, and "blue shift" phenomenon.