Electronic structure, magnetic and structural properties of Ni doped ZnO nanoparticles
- School of Materials Science and Engineering, Changwon National University, 9 Sarim dong, Changwon 641 773 (Korea, Republic of)
- Material Science Research Laboratory, Department of Physics, S. V. College, Aligarh 202001, Uttar Pradesh (India)
- Advanced Analysis Center, Korea Institute of Science and Technology, Seoul 136-791 (Korea, Republic of)
- Department of Applied Physics, Aligarh Muslim University, Aligarh 202-002 (India)
Highlights: • XRD, and HR-TEM results show the single phase nature of Ni doped ZnO nanoparticles. • dc magnetization results indicate the RT-FM in Ni doped ZnO nanoparticles. • Ni L{sub 3,2} edge NEXAFS spectra infer that Ni ions are in +2 valence state. • O K edge NEXAFS spectra show that O vacancy increases with Ni doping in ZnO. - Abstract: We report structural, magnetic and electronic structural properties of Ni doped ZnO nanoparticles prepared by auto-combustion method. The prepared nanoparticles were characterized by using X-ray diffraction (XRD), high resolution transmission electron microscopy (HR-TEM), near edge X-ray absorption fine structure (NEXAFS) spectroscopy, and dc magnetization measurements. The XRD and HR-TEM results indicate that Ni doped ZnO nanoparticles have single phase nature with wurtzite lattice and exclude the presence of secondary phase. NEXAFS measurements performed at Ni L{sub 3,2}-edges indicates that Ni ions are in +2 valence state and exclude the presence of Ni metal clusters. O K-edge NEXAFS spectra indicate an increase in oxygen vacancies with Ni-doping, while Zn L{sub 3,2}-edge show the absence of Zn-vacancies. The magnetization measurements performed at room temperature shows that pure and Ni doped ZnO exhibits ferromagnetic behavior.
- OSTI ID:
- 22420637
- Journal Information:
- Materials Research Bulletin, Vol. 59; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ABSORPTION SPECTROSCOPY
DOPED MATERIALS
ELECTRONIC STRUCTURE
FINE STRUCTURE
INDIUM FLUORIDES
MAGNETIZATION
NANOPARTICLES
NANOSTRUCTURES
NICKEL IONS
SYNTHESIS
TEMPERATURE RANGE 0273-0400 K
TRANSMISSION ELECTRON MICROSCOPY
VACANCIES
X-RAY DIFFRACTION
X-RAY SPECTROSCOPY
ZINC OXIDES