Abstract
In this work we study the nuances of composition determination of AlxGa1−xAs alloys by Raman spectroscopy. We mainly focus on understanding the effect of induced strain on the frequency of the optical phonons, a possible source of the dispersion in the calibration curves found in the literature. We conclude that while GaAs-like and AlAs-like Raman peaks may show a wide dispersion across samples of the same composition, aluminum concentration can still be accurately determined via Raman spectroscopy, provided that the difference between the GaAs-like and AlAs-like longitudinal optical modes is used, regardless of residual strain present.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
