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Structural and Optical Modification in 4H-SiC Following 30 keV Silver ion irradiation
Linköping University, Department of Physics, Chemistry and Biology, Semiconductor Materials. Linköping University, Faculty of Science & Engineering. Jamia Millia Islamia, India.
Jamia Millia Islamia, India.
Jamia Millia Islamia, India.
Jawaharlal Nehru Univ, India.
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2018 (English)In: INTERNATIONAL CONFERENCE ON INVENTIVE RESEARCH IN MATERIAL SCIENCE AND TECHNOLOGY (ICIRMCT 2018), AMER INST PHYSICS , 2018, Vol. 1966, article id UNSP 020035-1Conference paper, Published paper (Refereed)
Abstract [en]

The market of high power, high frequency and high temperature based electronic devices is captured by SiC due to its superior properties like high thermal conductivity and high sublimation temperature and also due to the limitation of silicon based electronics in this area. There is a need to investigate effect of ion irradiation on SiC due to its application in outer space as outer space is surrounded both by low and high energy ion irradiations. In this work, effect of low energy ion irradiation on structural and optical property of 4H-SiC is investigated. ATR-FTIR is used to study structural modification and UV-Visible spectroscopy is used to study optical modifications in 4H-SiC following 30 keV Ag ion irradiation. FTIR showed decrease in bond density of SiC along the ion path (track) due to the creation of point defects. UV-Visible absorption spectra showed decrease in optical band gap from 3.26 eV to 2.9 eV. The study showed degradation of SiC crystallity and change in optical band gap following low energy ion irradiation and should be addressed while fabricationg devices based on SiC for outer space application. Additionally, this study provides a platform for introducing structural and optical modification in 4H-SiC using ion beam technology in a controlled manner.

Place, publisher, year, edition, pages
AMER INST PHYSICS , 2018. Vol. 1966, article id UNSP 020035-1
Series
AIP Conference Proceedings, ISSN 0094-243X
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:liu:diva-149886DOI: 10.1063/1.5038714ISI: 000436343800035ISBN: 978-0-7354-1671-0 (print)OAI: oai:DiVA.org:liu-149886DiVA, id: diva2:1236405
Conference
International Conference on Inventive Research in Material Science and Technology (ICIRMCT)
Note

Funding Agencies|Graphene Flagship [CNECT-ICT-604391]; Swedish Research Council [2015-05876]

Available from: 2018-08-02 Created: 2018-08-02 Last updated: 2018-08-02

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Kaushik, Priya DarshniSyväjärvi, MikaelYakimova, RositsaYazdi, Gholamreza
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