Electrical conduction in plasma polymerized thin films of γ-terpinene


Autoria(s): Ahmad, Jakaria; Bazaka, Kateryna; Vasilev, Krasimir; Jacob, Mohan V.
Data(s)

2015

Resumo

Plasma polymerized c-terpinene (pp2GT) thin films are fabricated using RF plasma polymerization. MIM structures are fabricated and using the capacitive structures dielectric properties of the material is studied. The dielectric constant values are found to be in good agreement with those determined from ellipsometric data. At a frequency of 100 kHz, the dielectric constant varies with RF deposition power, from 3.69 (10 W) to 3.24 (75 W). The current density–voltage (J2V) characteristics of pp–GT thin films are investigated as a function of RF deposition power at room temperature to determine the resistivity and DC conduction mechanism of the films. At higher applied voltage region, Schottky conduction is the dominant DC conduction mechanism. The capacitance and the loss tangent are found to be frequency dependent. The conductivity of the pp2GT thin films is found to decrease from 1.39 3 10212 S/cm (10 W) to 1.02 3 10213 S/cm (75 W) and attributed to the change in the chemical composition and structure of the polymer. The breakdown field for pp–GT thin films increases from 1.48 MV/cm (10 W) to 2 MV/cm (75 W). A single broad relaxation peak is observed indicating the contribution of multiple relaxations to the dielectric response for temperature dependent J2V. The distribution of these relaxation times is determined through regularization methods. VC 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 42318.

Formato

application/pdf

Identificador

http://eprints.qut.edu.au/92054/

Publicador

John Wiley & Sons, Inc.

Relação

http://eprints.qut.edu.au/92054/1/Journal%20Applied%20Polymer%20Science.pdf

DOI:10.1002/app.42318

Ahmad, Jakaria, Bazaka, Kateryna, Vasilev, Krasimir, & Jacob, Mohan V. (2015) Electrical conduction in plasma polymerized thin films of γ-terpinene. Journal of Applied Polymer Science, 132(30).

http://purl.org/au-research/grants/ARC/(DE130101550)

Direitos

VC 2015 Wiley Periodicals, Inc.

Fonte

School of Chemistry, Physics & Mechanical Engineering; Institute of Health and Biomedical Innovation; Science & Engineering Faculty

Palavras-Chave #091200 MATERIALS ENGINEERING #biopolymers and renewable polymers #dielectric properties #properties and characterization
Tipo

Journal Article