TITLE:
Effects of the Cu Ion on the Structural and Optical Properties of Yttrium Doped ZnO by Solution Combustion
AUTHORS:
S. López-Romero, M. J. Quiroz-Jiménez, M. García-Hipólito, A. Aguilar-Castillo
KEYWORDS:
Zinc Oxide, Solution Combustion, X-Ray, Photoluminescence, Morphology
JOURNAL NAME:
World Journal of Condensed Matter Physics,
Vol.7 No.4,
November
2,
2017
ABSTRACT: In this experiment, pure, Y3+ doped ZnO and Cu2+ +
Y3+ co-doped ZnO were synthesized by a solution combustion method.
The Y3+ dopant concentration was fixed in 3%wt. and the
Cu2+ dopant concentrations were 0, 1, 2, 3, 10, and 20%wt. The XRD
spectra showed that the original hexagonal wurtzite structure of ZnO is
conserved after doping process, an increasing red shift until 10%wt. Cu2+ doping and decrease at higher Cu2+ doping and also, the chemical
creation of the news Y2O3 and Y2Cu2O5 phases. The behavior of the photoluminescence of the samples as a function of
Cu2+ doping reveal that the green emission band of the ZnO is
quenching and the ZnO UV emission intensity decrease notably for all Cu2+ doping. The scanning electron microscope analysis of the Cu2+ + Y3+ co-doped ZnO
samples reveal the existence of grains agglutinated forming like-spheres
particles. However, the nano-sized characteristic of the crystals is confirmed.