Abstract
In the present study Ni-doped ZnO and Ni, Cu-doped ZnO nanoparticles were successfully synthesized by co-precipitation method. Structural studies confirmed the dominant presence of hexagonal wurtzite ZnO phase at lower Cu concentration and CuO phase was observed at higher Cu (Cu=5%) concentration. The existence of Cu2+ ions were dominant at Cu⩽3% (responsible for lattice shrinkage) and the presence of Cu+ ions were dominant at Cu>3% (responsible for lattice expansion). The change in UV–visible absorption and energy gap were discussed by secondary phase generation and charge carrier density. The low absorption loss and high transmittance at Cu=3% doped samples is used as potential candidate for opto-electronic devices. The increase of green band intensity and decrease of UV band at higher Cu concentration confirmed the existence of more defect related states.
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.