Abstract
Pulsed laser deposited MgxZn1−xO films grown on sapphire substrates exhibited wurtzite hexagonal structure at lower Mg concentrations (x<0.20), whereas use of MgO substrates promotes cubic rocksalt structure. For x≥0.20, single-phase cubic ZnMgO thin films with 〈200〉 orientation were realized on MgO substrates. However, the films grown on sapphire substrates exhibited single-phase cubic structure with 〈111〉 orientation only when x≥0.4. We show that the optical bandgap of wurtzite ZnMgO films can be tuned from 3.27eV to 3.80eV. On the other hand cubic ZnMgO films exhibited larger bandgap values as high as 5.99eV.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: 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.