Open AccessUltraviolet and violet-blue emission of Zn doped MgO/mg(OH)2 particles prepared by one step spray pyrolysis method
Author(s) -
Fenfen Fenda Florena,
Dwindra Wilham Maulana,
Ferry Faizal,
Bambang Mukti Wibawa
Publication year - 2018
Publication title -
journal of powder technology and advanced functional materials
Language(s) - English
Resource type - Journals
eISSN - 2621-7821
pISSN - 2621-573X
DOI - 10.29253/jptafm.v1i1.8
Subject(s) - wurtzite crystal structure , scanning electron microscope , materials science , photoluminescence , analytical chemistry (journal) , doping , band gap , ultraviolet , emission spectrum , particle size , energy dispersive x ray spectroscopy , spectral line , zinc , chemistry , optoelectronics , metallurgy , physics , chromatography , astronomy , composite material
Spherical particles of Zn doped MgO were prepared by one-step spray pyrolysis method. The crystalline nature and particle size of the samples were characterized by X-ray diffraction analysis (XRD). The morphology of samples was studied by scanning electron microscope (SEM) and the presence of Zn in the sample was confirmed by energy dispersive X-ray analysis (EDX). The optical properties of the samples were investigated using photoluminescence spectroscopy (PL) analysis to obtain excitation and emission spectra of the samples. Results indicated that the doped MgO particles exhibited a cubic structure without hexagonal wurtzite structure as the Zn concentrations were increased. Spherical shape and porous particles are found with increasing of doping concentration. The optical band gap of MgO altered with the addition of doping concentration. A considerable redshift of about ~0.08 – 0.13 eV in the excitation spectra of 2.22 eV emission band was revealed in Zn doped MgO samples. It was highlighted that Zn doped MgO prepared by the spray pyrolysis generated emission at UV-Vis wavelength required for many applications.