Year-end Sale % OFF 
Abstract
Ti4+-activated zinc calcium aluminate phosphors, owing to their excellent luminescence properties, nontoxicity, environment friendliness and low price, have a certain prospect in the field of plant cultivation. In this study, we have successfully synthesized a series of Ca14-yAl10-xZn6-zO35:xTi4+ (CAZO:Ti4+) phosphors through a high-temperature solid-state method. Furthermore, the emission spectrum of CAZO:Ti4+ located in bluish violet-emitting band, and has an emission peak at 378 nm upon the excitation of 268 nm due to the charge transfer of Ti4+-O2-. Moreover, the luminescence intensity of as-synthetized phosphors can be improved by cation vacancies engineering to compensate for charge unbalance. Especially, the luminescence intensity could be further improved when the Ca2+ vacancy is 0.35 mol or the Zn2+ vacancy is 0.275 mol. Furthermore, the X-ray powder diffraction (XRD) analysis and crystal structure are checked and confirmed that the synthesized material is pure phase. The concentration quenching mechanism, FT-IR spectra, UV–vis absorption properties, lifetimes and electron transition process of Ca14-yAl10-xZn6-zO35: xTi4+ were discussed in detail. From the above, the phosphor has a potential application for plant growth field due to its broad bluish violet emission.
Published Version
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.
