Iodine doping of amorphous carbon thin films deposited using camphoric carbon precursor / Dayana Kamaruzaman

Kamaruzaman, Dayana (2013) Iodine doping of amorphous carbon thin films deposited using camphoric carbon precursor / Dayana Kamaruzaman. Masters thesis, Universiti Teknologi MARA (UiTM).

Abstract

Amorphous carbon (a-C) is expected to be an excellent material for fabricating low cost and high efficiency carbon based solar cells because of its interesting properties and feasibility of band gap engineering over a wide range. The preparation of a-C thin films was carried out by using thermal chemical vapor deposition (CVD) technique. The initial phase of this work involved the deposition of a-C thin films using camphor oil as an environmentally carbon precursor. The second phase is focused on the doping process of a-C thin films with iodine (I) as p-type dopant. The studies were done to determine the optimum parameters to obtain a p-type a-C:I thin film. The deposition temperature, deposition time and gas flow rate effects on the properties of a-C thin films were analyzed in details. The a-C thin films deposited at 550°C, 30 min and 35 seem were considered as the best parameters throughout this work . For doping process, the a-C:I thin films is found to be influenced by doping temperature, amount of iodine and doping time effects. Based on the results, the a-C:I thin film prepared at 400°C, l.Og and 10 min can be considered as the optimized parameter to produce higher conductivity (-10' S.cm’ ) and lower optical band gap. The optimum preparation parameters for a-C and a-C:I thin films have been identified. Comparison between without and with iodine doping on a-C thin film properties have also been studied. Hetero-junction of both films fabricated with n-Si found photovoltaic behavior.

Metadata

Item Type: Thesis (Masters)
Creators:
Creators
Email / ID Num.
Kamaruzaman, Dayana
2010178251
Contributors:
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Name
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Thesis advisor
Mahmood, Mohamad Rusop
UNSPECIFIED
Subjects: T Technology > TK Electrical engineering. Electronics. Nuclear engineering > Electronics > Apparatus and materials
T Technology > TK Electrical engineering. Electronics. Nuclear engineering > Electronics > Applications of electronics
Divisions: Universiti Teknologi MARA, Shah Alam > Faculty of Electrical Engineering
Programme: Master of Science in Electrical Engineering
Keywords: Iodine doping, amorphous carbon, camphoric carbon precursor
Date: 2013
URI: https://ir.uitm.edu.my/id/eprint/20428
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