Abstract
Quaternary semiconductors in the kesterite phase are of keen interest for next-generation photovoltaics. For a given chemical composition, several idealized crystal structures are available, with quite different electronic band structures and gaps. Also complicating the picture are imperfections in the actual crystal structure realized during processing. The authors study Cu${}_{2}$ZnGeSe${}_{4}$ via ellipsometry and density functional theory, identifying its major optical features and relating them to structural imperfections. This work points the way to improved alloying and band-gap engineering.
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.
