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Conduction mechanisms in diamond-like carbon thin films prepared by PECVD method

Ab. Kaderld, Mohd. Azamnie (2010) Conduction mechanisms in diamond-like carbon thin films prepared by PECVD method. Masters thesis, Universiti Teknologi Malaysia, Faculty of Science.

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Abstract

The aim of this study is to prepare thin films of diamond-like carbon (a-C:H) and to determine the conduction mechanisms in the diamond-like carbon thin films. Diamond-like carbon (a-C:H) thin films were deposited on corning glass substrates using PECVD method. The samples were fabricated in Al/a-C:H/Al structures in order to study the conduction mechanisms through the thin films. Current-voltage (IV) measurements were carried out using an electrometer. The I-V curves of the diamond-like carbon thin films at 84 nm and 110 nm show the features of ohmic characteristics in the lower field region (E < 2X107 V/m). In the higher field region (E > 2X107 V/m), the I-V characteristics of the diamond-like carbon thin film at 110 nm show the conduction in the diamond-like carbon thin film follows space-chargelimited current (SCLC) mechanism. The conduction mechanisms in the diamond-like carbon thin films were influenced by the thickness of the films.

Item Type:Thesis (Masters)
Additional Information:Supervisor : Assoc. Prof. Dr. Bakar Ismail; Thesis (Sarjana Sains (Fizik)) - Universiti Teknologi Malaysia 2010
Uncontrolled Keywords:thin films, diamond thin films
Subjects:Q Science > QC Physics
Divisions:Science
ID Code:16336
Deposited By: Ms Zalinda Shuratman
Deposited On:01 Feb 2012 07:27
Last Modified:01 Feb 2012 07:31

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