caa a22 4500 445382481 CHVBK 20180317143021.0 cr unu---uuuuu 170323e20111101xx s 000 0 eng 10.1007/s10948-011-1297-z doi (NATIONALLICENCE)springer-10.1007/s10948-011-1297-z Optical, Structural, and Magnetic Properties of ZnO:Co Nanoparticles Prepared by a Thermal Treatment of Ball Milled Precursors [Elektronische Daten] [I. Sarsari, H. Salamati, P. Kameli, F. Razavi] In this study, ZnO nanoparticles with different cobalt concentration were prepared by a simple and rapid method. This method is based on a short time solid state milling and calcinations of zinc acetate, cobalt acetate, and citric acid powders. The samples were characterized using X-ray diffraction (XRD), Field Emission Scanning Electron Microscopy (FE-SEM), Fourier Transform Infrared (FTIR), photoluminescence, and UV-vis. spectroscopy. It was shown that a very low substitution of Co (less than 1% of molecular weight) has little effect on the lattice parameters of ZnO and significantly decreases the band gap (E g ) value of the synthesized ZnO:Co nanoparticles. Calculation based on the XRD data shows that the average crystallite sizes of ZnO particles are nearly 18 nm. Photoluminescence spectroscopy shows that many defects such as interstitial zinc, zinc vacancy, and exciton recombination are responsible for the observed optical properties. Magnetization measurements which were performed by using a superconducting quantum interference device (SQUID) magnetometer determine the paramagnetic behavior for all samples due to the absence of oxygen vacancy. Springer Science+Business Media, LLC, 2011 Zn1− x Co x O nationallicence Diluted magnetic semiconductor nationallicence Nanomaterials nationallicence Sarsari I. Physics Department, Isfahan University of Technology, 84156-83111, Isfahan, Iran aut Salamati H. Physics Department, Isfahan University of Technology, 84156-83111, Isfahan, Iran aut Kameli P. Physics Department, Isfahan University of Technology, 84156-83111, Isfahan, Iran aut Razavi F. Department of Physics, Brock University, L2S 3A1, St. Catharines, Ontario, Canada aut Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/8(2011-11-01), 2293-2298 1557-1939 24:8<2293 2011 24 10948 https://doi.org/10.1007/s10948-011-1297-z text/html Onlinezugriff via DOI 1 review-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10948-011-1297-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sarsari I. Physics Department, Isfahan University of Technology, 84156-83111, Isfahan, Iran aut NATIONALLICENCE 700 1- Salamati H. Physics Department, Isfahan University of Technology, 84156-83111, Isfahan, Iran aut NATIONALLICENCE 700 1- Kameli P. Physics Department, Isfahan University of Technology, 84156-83111, Isfahan, Iran aut NATIONALLICENCE 700 1- Razavi F. Department of Physics, Brock University, L2S 3A1, St. Catharines, Ontario, Canada aut NATIONALLICENCE 773 0- Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/8(2011-11-01), 2293-2298 1557-1939 24:8<2293 2011 24 10948 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer