Prakash, T. ; Murty, B. S. ; Kaskhedikar, A. R. ; Peshwe, P. D. (2013) Crystallite size effect on voltage tunable giant dielectric permittivity of nanocrystalline CuO Electronic Materials Letters, 9 (1). pp. 59-62. ISSN 1738-8090
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Official URL: https://link.springer.com/article/10.1007/s13391-0...
Related URL: http://dx.doi.org/10.1007/s13391-012-2091-1
Abstract
The effect of crystallite size and applied DC bias voltage on dielectric permittivity of CuO was studied using impedance spectroscopy. The measurements were performed at room temperature in a wide frequency range of 1 Hz to 1 MHz under applied DC bias voltages from 0 to 3 V in the periodic increment of 0.2 V. The observed applied DC bias voltage effect on giant dielectric constant (ε′ = 104) were analyzed with ‘grain boundary double Schottky potential barrier height model’. The percentage of tunability (T%) at the frequency 100 Hz is found to be 45.5% for the case of nanocrystalline CuO in contrast to 0% tunability in bulk CuO.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Springer Verlag. |
| Keywords: | Giant Dielectric Constant Materials; Voltage Tunable Capacitor; Bode Plots; Cuo Nanocrystals |
| ID Code: | 110904 |
| Deposited On: | 06 Dec 2017 11:04 |
| Last Modified: | 06 Dec 2017 11:04 |
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