J. Mater. Sci. Technol. ›› 2018, Vol. 34 ›› Issue (3): 488-495.DOI: 10.1016/j.jmst.2017.01.020
Special Issue: Nanomaterials 2018
• Orginal Article • Previous Articles Next Articles
Zalak Joshia, Davit Dhruvab, K.N. Rathoda, J.H. Marknab, A. Satyaprasadc, A.D. Joshid, P.S. Solankia, N.A. Shaha*()
Received:
2016-09-08
Revised:
2016-11-24
Accepted:
2016-12-20
Online:
2018-03-20
Published:
2018-03-20
Contact:
Shah N.A.
Zalak Joshi, Davit Dhruv, K.N. Rathod, J.H. Markna, A. Satyaprasad, A.D. Joshi, P.S. Solanki, N.A. Shah. Size effects on electrical properties of sol-gel grown chromium doped zinc oxide nanoparticles[J]. J. Mater. Sci. Technol., 2018, 34(3): 488-495.
Fig. 1. Rietveld refined XRD patterns of sol-gel grown Zn0.95Cr0.05O compounds sintered at (a) 450 °C, (b) 600 °C and (c) 750 °C and enlarged views of Rietveld refined three most intense XRD patterns of sol-gel grown Zn0.95Cr0.05O compounds sintered at (d) 450 °C, (e) 600 °C and (f) 750 °C.
Fig. 2. Williamson - Hall (W-H) plots of XRD patterns collected for sol-gel grown Zn0.95Cr0.05O nanoparticles sintered at (a) 450 °C, (b) 600 °C and (c) 750 °C.
Fig. 5. Frequency dependent variation in (a) real and (b) imaginary parts of permittivity for sol-gel grown Zn0.95Cr0.05O nanoparticles sintered at different temperatures.
Fig. 6. Plots of log(fε?) vs. log(f) with linear fits, throughout the frequency range studied, for sol-gel grown Zn0.95Cr0.05O nanoparticles sintered at 450 °C. Insets: Plots of log(fε?) vs. log(f) with linear fits, throughout the frequency range studied, for sol-gel grown Zn0.95Cr0.05O nanoparticles sintered at (a) 600 °C and (b) 750 °C.
Fig. 7. Variation in ac conductivity with frequency (ω), with power law (Aωη) fits, for sol-gel grown Zn0.95Cr0.05O nanoparticles sintered at different temperatures.
Fig. 8. Frequency dependent variation in (a) real and (b) imaginary parts of impedance for sol-gel grown Zn0.95Cr0.05O nanoparticles sintered at different temperatures.
Fig. 10. Variation in ANC in impedance with frequency for sol-gel grown Zn0.95Cr0.05O nanoparticles sintered at different temperatures. Inset: An enlarged view of ANC in impedance with frequency for sol-gel grown Zn0.95Cr0.05O nanoparticles sintered at different temperatures.
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