Abstract
Zinc telluride is a versatile wide band gap semiconductor used in many applications. But it has certain limitations like large dimensions and large band gaps. Introducing alkali metal to its bulk lattice (3D) can reduce its dimensions and lanthanide can produce a red shift in the energy gap by converting it into quaternary compounds. The alkali and lanthanide incorporated quaternary zinc tellurides CsLnZnTe3 (Ln = La, Pr, Nd and Sm) form layered crystal structure in which ∞2LnZnTe3− layers are separated by Cs+ layer. The famous lanthanide contraction is experimental both from lattice constants and bond lengths. The calculated band gaps are 2.26, 2.28, 2.12, 2.05 eV for CsLaZnTe3, CsPrZnTe3, CsNdZnTe3 and CsSmZnTe3, respectively. These compounds show direct band gap nature. The energy band gaps of these compounds have not been evaluated yet both experimentally and theoretically. Energy loss functions, refractive index and dielectric functions were also calculated to explore the potential applications of CsLnZnTe3 in optoelectronic devices.
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.
