Abstract
Abstract For this study, a microcomputer‐controlled electrolyte electroreflec‐tance (EER) system has been set up. EER measurements are carried out on samples of Ga1‐xAlx, As alloys in the photon energy range of 1.4 to 4.2 eV at room temperature. The E0, E0+?0, E 1 and E 1 +? 1 transitions have been determined as a function of alloy composition x. The transition energies at critical points show quadratic dependence on the alloy composition, with the relation E(x)=a+bx+cx2. Based on this relation, the EER technique has been utilized to study the variations in composition across the surface of the sample. This technique is nondestructive and can readily be employed under atmospheric conditions at room temperature. This method is sensitive enough to determine the changes of composition ?x within a range of \% with a spatial resolution of 150 μm.
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.
