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The nanostructures have special properties, which are caused by their dimensions. In such a nanostructure like e.g. nanorod or nanotube, the Debye length is similar to the structure’s diameter. In this kind of nanostructures almost every atom can be considered as surface atom. This fact increases the speed and efficiency of the surface reactions. Practical application of 1D nanostructures can improve the efficiency of gas sensors, solar cells and heterogeneous catalysts. Zinc oxide because of its properties, like wide band-gap (3.37 eV) and small extension binding (60 meV) [1], have been widely investigated in the last decade. There are many articles about methods of synthesis of ZnO 1D nanostructures synthesis methods [2, 3]. The zinc oxide can be obtained using several techniques like PVD, CVD or wet chemistry. One of the most interesting method of ZnO synthesis is chemical bath deposition (CBD). It does not need complicated and expensive instruments and it allows for deposition of ZnO on different substrates. In literature there are described plenty of experiments, which show the possibilities of synthesis of different nanostructures [4, 5], but there is no systematic investigations, which completely describe the influence of the process parameters on the shape and dimensions of the nanostructures in CBD [6–8]. The aim of our work is to develop the method, which allows us to obtain the nanotubes and nanorods with changing diameter for application in gas sensors, photocatalysis and as an antiseptic material. Because there is no systematic investigation about how process parameters affect ZnO nanocrystals growth, we have started to work on the complex characterization of the influence of the substrate preparation, temperature, time of heating [9–11], chemical compounds, electrical field, microwave on the shape and size of the nanostructures. In this paper we present the results of our investigation of the influence of chemical compounds and their impact on the quality of the nanomaterials.

The Influence of the Chemical Compounds οn the Zinc Oxide Nanostructures Growth in Chemical Bath Deposition