Synthesis by Wet Chemical Method and Characterization of Nanocrystalline ZnO Doped with Fe_2O_3

• Authors: U. Narkiewicz , D. Sibera , I. Kuryliszyn-Kudelska , L. Kilański , W. Dobrowolski , N. Romčević
• Languages of publication: EN

Abstracts

EN

Nanocrystalline samples of ZnO doped with Fe_2O_3 were synthetized by wet chemical method. The series of ZnO nanosized samples in the wide range of Fe_2O_3 concentration (from 5 wt.% to 95 wt.%) was prepared by precipitation from nitrate solutions using ammonia. The phase composition of the samples was determined using X-ray diffraction measurements. The phases of hexagonal ZnO, and/or rhombohedric Fe_2O_3, and/or ZnFe_2O_4 were identified. The mean crystalline size of nanocrystals, determined with the use of Scherrer's formula, varied from 8 to 52 nm. The preliminary micro-Raman spectroscopy measurements were performed. The observed features are typical of Fe doped ZnO nanoparticles. The magnetic measurements revealed the presence of different types of magnetic behavior. For samples with high Fe_2O_3 contents (above 70 wt.%) the ferromagnetic ordering was observed at room temperature. For samples with lower Fe_2O_3 contents we observed the phenomenon of superparamagnetism above the blocking temperature.

Keywords

EN

81.07.-b; 75.75.+a; 78.67.Bf

Discipline

• 78.67.Bf: Nanocrystals, nanoparticles, and nanoclusters
• 81.07.-b: Nanoscale materials and structures: fabrication and characterization(for structure of nanoscale materials, see 61.46.-w; for nanostructured materials in electrochemistry, see 82.45.Yz; see also 62.23.-c Structural classes of nanoscale systems in mechanical properties of condensed matter)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2008
• Volume: 113
• Issue: 6
• Pages: 1695-1700

Dates

published

2008-06

received

2008-02-08

Contributors

author

U. Narkiewicz

• Szczecin University of Technology, Institute of Chemical and Environment Engineering, Pułaskiego 10, 70-322 Szczecin, Poland

author

D. Sibera

• Szczecin University of Technology, Institute of Chemical and Environment Engineering, Pułaskiego 10, 70-322 Szczecin, Poland

author

I. Kuryliszyn-Kudelska

• Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warszawa, Poland

author

L. Kilański

• Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warszawa, Poland

author

W. Dobrowolski

• Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warszawa, Poland

author

N. Romčević

• Center for Solid State Physics and New Materials, Institute of Physics, Pregrevica 118, 11080 Belgrade, Serbia

References

• 1. Y. Chen, D.M. Bagnall, H. Koh, K. Park, K. Hiraga, Z. Zhu, T. Yao, J. Appl. Phys. 84, 3912 (1998)
• 2. J. Nemeth, G. Rodriguez-Gattorno, A. Vazquez-Olmos, D. Diaz, I. Dekany, Langmuir 20, 2855 (2004)
• 3. J.M.D. Coey, M. Venkatesan, C.B. Fitzgerald, Nat. Mater. 4, 173 (2005)
• 4. C. Sudakar, J.S. Thakur, G. Lawes, R. Naik, V.M. Naik, Phys. Rev. B 75, 054423 (2007)
• 5. T. Dietl, Acta Phys. Pol. A 111, 27 (2007)
• 6. A.L. Patterson, Phys. Rev. 56, 978 (1939)
• 7. R.Y. Sato-Berru, A. Vázquez-Olmos, A.L. Fernández-Osorio, S. Sortes-Martinez, J. Raman Spectrosc. 38, 1073 (2007)

Identifiers

DOI

10.12693/APhysPolA.113.1695