X-ray diffraction, X-ray photoelectron spectroscopy, and raman spectroscopy of undoped and Mn-doped ZnO nanoparticles prepared by microwave irradiation

Abstract

In this paper, we present X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and Raman scattering data for undoped and Mn-doped ZnO nanoparticles synthesized by microwave irradiation. X-ray diffractograms of all these samples have been indexed based on the hexagonal wurtzite structure and lattice parameters calculated have a good resemblance to reported values. It is found that with Mn doping in ZnO, a slight increase in the lattice parameter is observed. XPS spectra for the ZnO and Mn-doped ZnO nanoparticles show peaks for Zn 2p, Zn 3d, O 1s, and Mn 2p. The Raman peaks at 331, 387, 437, 540, 577, and 668 cm–1 are assigned to $ E_2^{high }-E_2^{low } $ , A1(TO), $ E_2^{high } $ , 2LA, A1(LO), and A1(LO) + $ E_2^{low } $ respectively for the ZnO and Mn doped ZnO samples.