Abstract
TiO2:Ho3+–Yb3+ nanomaterials with various Li+ concentrations were synthesized by the sol-gel method. The enhancement effect of Li+ ions on the upconversion luminescence of nanomaterials was investigated. Li+ ion doping promotes the dissolution of Ho3+ and Yb3+ in the matrix, as the charge imbalance caused by the substitution of Ti4+ with Ho3+ and Yb3+ can be compensated by Ti4+ → Ho3+ (Yb3+) + Li+. The upconversion luminescence of TiO2:Ho3+–Yb3+ can be enhanced by improving the crystallinity of the matrix. The results show that maximum luminescence intensity can be obtained when the charge imbalance between Ho3+ (Yb3+) and Ti4+ is fully compensated by Li+ ion doping.
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.
