Abstract
ZnO particles co-doped with boron and fluorine (B, F-ZnO) were prepared by a simple hydrothermal technique. The reaction took place in an autoclave at 200 °C for 4 h. Then the particles were annealed at 600 °C for one hour and the characteristics of the particles were investigated as a function of boron (1, 3 and 5 at.%) and fluorine (3 at.%) concentrations in the solution. X-ray diffraction (XRD) measurements showed that doped ZnO particles had hexagonal wurtzite structure for all precursor solutions. Morphological characterization of the particles was done by a scanning electron microscope (SEM) and the results showed that the morphologies of all doped particles had a regular hexagonal shape. Thermal properties of particles were investigated by TG-DTA analysis. The optical measurements reveal that all absorption curves exhibit an observable absorption in the range 320–400 nm, with the absorption edge in between 380 and 375 nm.

Key words
ZnO particles, hydrothermal method, physical properties, optical properties

Full text (433 KB)