Structural and optical properties of electrodeposited Nd-doped ZnO thin films

Abstract:

In this study, Nd-doped ZnO thin film has been prepared by electrodeposition method. The structural and optical properties of the samples were investigated. X-ray diffraction spectroscopy analyses indicate that the Nd doping can not disturb the structure of ZnO. No additional peaks are observed in the samples and Nd3 substitute for Zn2 without changing the wurtzite structure. The optical absorption spectra of Nd-doped ZnO thin films indicate that with Nd doping concentration increases, the absorbance peaks of the samples shift towards short wave length. The photoluminescence spectra show that with the concentration of Nd3 increasing, visible emission enhanced greatly and the intensity of ultraviolet emission is reduced.

Key words:Nd-doped ZnO; optical absorption ; photoluminescence