Effect of Dimethyl Borate Composition on the Properties of Boron Doped ZnO Films Synthesized by Hydrothermal Method
Abstract: In this study, boron
doped ZnO nanostructure films were synthesized by hydrothermal method utilizing
various compositions of dimethyl borate as source of dopant. The effect of
composition of dimethyl borate on the morphology, optical properties and
structure of the films was investigated by field emission scanning electron
microscopy (FESEM), UV-Vis spectrofotometer and x-ray diffraction (XRD),
respectively. The FESEM results indicate that the composition of dimethyl
borate significantly modify the diameter of B-doped ZnO nanorods. It is also
observed from the analysis of XRD result that the crystalline quality of the
films decreases with dimethyl borate composition. The band gap of the films
increases with dimethyl borate composition. The room temperature spectra
photoluminescence shows ultra-violet (UV) and visible emission. The 10 wt. %
sample possesses the highest peak intensity at UV emission. Meanwhile, the 1.0
wt. % sample shows the lowest peak intensity at visible emission. It was expected
that the 1.0 wt. % sample suppresses the existence of native defect such as
singly ionized oxygen vacancies, zinc interstitials or their complexes in
B-doped ZnO nanorods.
Author: L. Roza, M.Y.A. Rahman
Journal Code: jpfisikagg160006
