Abstract
The dielectric properties of nanocrystalline tungsten oxide are studied in the temperature range of 223–293 K and in the frequency range ν = 10–2–106 Hz. Powders of WO3 with particle sizes of 110, 150, and 200 nm are prepared by the heat treatment of ammonium paratungstate at various temperatures. It is established that the frequency dependences of the conductivity for all samples increase with an increase in frequency, while the polarization characteristics ε'(ν) and ε"(ν) decrease. It is found that the frequency dependences of the conductivity are described by a function of the form νs with an index in the range of (0.83–0.90) ± 0.01, which is characteristic of the “hopping” mechanism of charged-particle motion (complexes) over localized states confined by potential barriers and structural defects.
Similar content being viewed by others
References
G. Granqvist, Handbook of Electrochromic Materials (Elsevier, Amsterdam, 1995).
B. Urasinska-Wojcik, T. A. Vincent, M. F. Chowdhury, and J. W. Gardner, Sens. Actuators, B 239, 1051 (2017).
L. Wang, A. Teleki, S. E. Pratsinis, and P. I. Gouma, Chem. Mater. 20, 4794 (2008).
S. S. Kalaga, S. S. Mali, D. S. Dalavi, A. I. Inamdar, H. Im, and P. S. Patil, Synth. Met. 161, 1105 (2011).
S. E. M. Svensson and C. G. Granqvist, Thin Solid Films 126, 31 (1985).
B. Gavanier, F. M. Miehalak, and J. R. Owen, Ionics 3, 265 (1997).
G. Leftheriotis, G. Syrrokostas, and P. Yianoulis, Sol. Energy Mater. Sol. Cells 94, 2304 (2010).
A. Pawlicka, Recent Patents Nanotechnol. 3, 177 (2009).
S. Long, H. Zhou, S. Bao, Y. Xin, X. Cao, and P. Jin, RCS Adv. 6, 106435 (2016).
Ch. Ma, Ch. Zhou, Zh. Zhang, B. Wang, and L. Wei, Mater. Sci. Forum 445–446, 141 (2004).
E. K. H. Salje, Eur. J. Solid State Inorg. Chem. 31, 651 (1994).
A. Aird, M. C. Domeneghetti, F. Mazzi, V. Tazzoli, and E. K. H. Salje, J. Phys.: Condens. Matter 10, L569 (1998).
Sh. Sawada, J. Phys. Soc. Jpn. 11, 1237 (1956).
L. Wang, A. Teleki, S. E. Pratsinis, and P. I. Gouma, Chem. Mater. 20, 4794 (2008).
P. M. Woodward, A. W. Sleight, and T. Vogt, J. Solid State Chem. 131, 9 (1997).
A. Elshafie, H. H. Afify, and A. Abdel-All, Phys. Status Solidi 174, 301 (1999).
M. M. El-Nahass, H. A. M. Ali, M. Saadeldin, and M. Zaghllol, Phys. B (Amsterdam, Neth.) 407, 4453 (2012).
M. G. Hutchins, O. Abu-Alkhair, M. M. El-Nahass, and K. Abdel-Hady, J. Non-Cryst. Solids 353, 4137 (2007).
H. Frohlich, Theory of Dielectrics: Dielectric Constant and Dielectric Loss (Clarendon, Oxford, 1949).
P. T. Oreshkin, Physics of Semiconductors and Dielectrics (Vyssh. Shkola, Moscow, 1977) [in Russian].
B. Jagan Mohan Reddy, G. Paran Jyothi, M. V. Ramana Reddy, M. N. Chary, and Narasimha Reddy, Phys. Status Solidi 137, 241 (1993).
N. Ashcroft and N. Mermin, Solid State Physics (Brooks Cole, Pacific Grove, 1976), Vol. 2.
A. Feltz, Amorphous Inorganic Materials and Glasses (Wiley, New York, 1993; Mir, Moscow, 1986).
Yu. M. Poplavko, L. P. Pereverzeva, and I. P. Raevskii, Physics of Active Dielectrics, Ed. by V. P. Sakhnenko (Yuzh. Fed. Univ., Rostov-on-Don, 2009) [in Russian].
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © S.A. Kozyukhin, S.A. Bedin, P.G. Rudakovskaya, O.S. Ivanova, V.K. Ivanov, 2018, published in Fizika i Tekhnika Poluprovodnikov, 2018, Vol. 52, No. 7, pp. 745–750.
Rights and permissions
About this article
Cite this article
Kozyukhin, S.A., Bedin, S.A., Rudakovskaya, P.G. et al. Dielectric Properties of Nanocrystalline Tungsten Oxide in the Temperature Range of 223–293 K. Semiconductors 52, 885–890 (2018). https://doi.org/10.1134/S1063782618070114
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1063782618070114