Optical and electronic properties of GaAsBi alloys for device applications

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Optical and electronic properties of GaAsBi alloys for device applications Masnadi Shirazi Nejad, Mostafa

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GaAs1-xBix is a new III-V semiconductor alloy that shows promise for many optoelectronic applications. In this thesis, several characterization techniques were used to explore the properties of molecular beam epitaxy grown GaAs1-xBix alloys in a wide range of Bi-content. The fundamental bandgap and the optical absorption coefficient of pseudomorphic GaAs1-xBix/GaAs films are studied by optical transmission and photoluminescence spectroscopies. All GaAs1-xBix films (0≤x≤17.8%) show direct optical bandgaps. The bandgap (Eg) decreases strongly with increasing Bi-content, reaching 0.52 eV (~2.4 µm) at 17.8% Bi. At Eg

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Title	Optical and electronic properties of GaAsBi alloys for device applications
Creator	Masnadi Shirazi Nejad, Mostafa
Publisher	University of British Columbia
Date Issued	2015
Description	GaAs1-xBix is a new III-V semiconductor alloy that shows promise for many optoelectronic applications. In this thesis, several characterization techniques were used to explore the properties of molecular beam epitaxy grown GaAs1-xBix alloys in a wide range of Bi-content. The fundamental bandgap and the optical absorption coefficient of pseudomorphic GaAs1-xBix/GaAs films are studied by optical transmission and photoluminescence spectroscopies. All GaAs1-xBix films (0≤x≤17.8%) show direct optical bandgaps. The bandgap (Eg) decreases strongly with increasing Bi-content, reaching 0.52 eV (~2.4 µm) at 17.8% Bi. At Eg
Genre	Thesis/Dissertation
Type	Text
Language	eng
Date Available	2015-08-20
Provider	Vancouver : University of British Columbia Library
Rights	Attribution-NonCommercial-NoDerivs 2.5 Canada
DOI	10.14288/1.0166601
URI	http://hdl.handle.net/2429/54559
Degree (Theses)	Doctor of Philosophy - PhD
Program (Theses)	Electrical and Computer Engineering
Affiliation	Applied Science, Faculty of; Electrical and Computer Engineering, Department of
Degree Grantor	University of British Columbia
Graduation Date	2015-09
Campus	UBCV
Scholarly Level	Graduate
Rights URI	http://creativecommons.org/licenses/by-nc-nd/2.5/ca/
Aggregated Source Repository	DSpace

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UBC Theses and Dissertations

UBC Theses and Dissertations

Optical and electronic properties of GaAsBi alloys for device applications Masnadi Shirazi Nejad, Mostafa

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