Effect of Mg and rare earth ions co-doping on the structural and optical properties of ZnO nanorods
摘要
Rare earth (RE) and Mg ions co-doped ZnO samples were synthesized by wet-chemical method. XRD characterization of samples indicated that all samples crystalize in wurtzite structure of ZnO without the formation any additional phase. Morphological characterization revealed that all the samples display nanorod features. UV–Visible characterization showed that the Mg and RE co-doping leads to band gap narrowing in ZnO. The signature of green emission band in all the samples ascribed to the presence of defects like zinc vacancies, oxygen vacancies, donor–acceptor pairs, etc. Magnetic characterization indicated that all the samples exhibit weak ferromagnetism. The present study suggested that the samples could be beneficial for blue LED as well as photocatalytic application.