Temperature dependent electrical impedance spectroscopy measurements of plasma enhanced chemical vapour deposited linalyl acetate thin films

Anderson, L.J., and Jacob, M.V. (2013) Temperature dependent electrical impedance spectroscopy measurements of plasma enhanced chemical vapour deposited linalyl acetate thin films. Thin Solid Films, 534. pp. 452-458.

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Abstract

Electrical impedance spectroscopy measurements were performed on metal-insulator-metal structures using recently developed plasma deposited thin films of linalyl acetate as the insulating layer between frequencies of 10 Hz and 100 kHz in order to better understand this material's dielectric and structural properties. Furthermore, measurements were performed on samples fabricated under various input energy conditions to determine whether effects induced by these conditions influence the dielectric properties. The plasma deposited linalyl acetate thin films were found to be low dielectric constant across a wide range of frequencies, with primary contributions from electronic factors. Neither alpha -nor beta-relaxation peaks were observed in the frequency range investigated at room temperature and no significant dependence of dielectric properties on input energy was observed. Samples were then investigated under heated conditions at four temperatures, where a single relaxation peak was found. This peak was quite broad, indicative of the contribution of multiple relaxations to the dielectric response. The distribution of these relaxation times was determined through regularisation methods. The breakdown field was investigated for samples at three thicknesses, and found to be approximately 1.8 MV/cm.

Item ID: 27456
Item Type: Article (Refereed Research - C1)
Keywords: plasma enhanced chemical vapour deposition, linalyl acetate, electrical impedance spectroscopy, low dielectric constant, relaxation time distribution
ISSN: 0040-6090
Date Deposited: 05 Jun 2013 09:39
FoR Codes: 09 ENGINEERING > 0912 Materials Engineering > 091208 Organic Semiconductors @ 100%
SEO Codes: 85 ENERGY > 8505 Renewable Energy > 850504 Solar-Photovoltaic Energy @ 100%
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