Dependence of optical and electrical properties of ZnO:В thin layers on the hydrothermal synthesis temperature
Keywords:
zinc oxide thin films, boron doping, hydrothermal synthesis, absorption and transmission spectra, electrical propertiesAbstract
The technological parameters of the hydrothermal synthesis of zinc oxide thin film were defined. The synthesis methods of ZnO boron doped layers were developed. The morphology and structural properties of ZnO:B films, grown by the hydrothermal method, were researched. The synthesized ZnO:B films were investigated by optical and electron microscopy. The experimental results shown that the major parameters of the hydrothermal synthesis, such as synthesis temperature and duration determine the optical and electrical properties of the obtained ZnO:B samples. The absorbance and transmittance spectra of ZnO:B films, prepared by the hydrothermal method at various temperatures, are presented in this paper. Analysis of the images allows us to conclude that the decreasing of growth temperature causes ZnO rods diameter increasing and reducing of their height. The photoluminescence, optical and electrical properties (concentration and mobility of charge carriers, the resistivity) of synthesized ZnO:B films were studied.
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