YOSEF BADALI
Articles written in Bulletin of Materials Science
Volume 42 Issue 5 October 2019 Article ID 0225
Dielectric properties of Ag/Ru$_{0.03}$–PVA/$n$-Si structures
YOSEF BADALI SERHAT KOÇYIGIT IBRAHIM USLU SEMSETTIN ALTINDAL
Ag/Ru$_{0.03}$−PVA/$n$-Si structures were successfully prepared and their morphological and electrical properties were
investigated. The obtained electrical results suggested that the complex dielectric constant
($\epsilon^* = \epsilon^{\prime} − j\epsilon^{\prime\prime}$), complex electric modulus $M^∗ = M^{\prime} + jM^{\prime\prime}$,
loss tangent ($\tan \delta$) and alternating current (ac) electrical conductivity ($\sigma_{\rm ac}$) are all a strong function
of the frequency ($f$) and applied voltage. The changes in these parameters are the results of the existence of the surface
states ($N_{\rm ss}$) or interface traps ($D_{\rm it} = N_{\rm ss}$), interfacial polymer layer, surface and dipole
polarizations and hopping mechanisms. The values of $\epsilon^{\prime}$ and $\epsilon^{\prime\prime}$ show a
steep decline with increasing frequency and then reach a constant value at high frequency, whereas the increments of
$M^{\prime}$ and $M^{\prime\prime}$ with frequency are exponential. The $\tan \delta$
Volume 43, 2020
All articles
Continuous Article Publishing mode
Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
Chemical Sciences 2020
Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
Physical Sciences 2020
Click here for Editorial Note on CAP Mode
© 2021-2022 Indian Academy of Sciences, Bengaluru.