Abstract
This paper reports the enhancement in photoluminescence due to the alkaline ions (M2+) co-doping in YVO4:Eu3+ phosphors prepared by solid state reaction method. The as synthesized samples were found to have single phase tetragonal structure and the incorporation of dopant/codopant did not affect the crystal structure. The characteristic bands of YO and VO were located at 450cm−1 and 830cm−1, respectively. The microscopic images exhibited the irregular morphology of the synthesized phosphor consisting of μm sized particles. Upon UV excitations, all phosphors showed intense red–orange emissions corresponding to the 5D0→7FJ=1,2:Eu3+ transitions, and the emission intensity was further enhanced due to codoping. Divalent ions introduced radiative defect centers, which enhances the PL intensity significantly. The calculation of spectral parameters was done through Judd–Ofelt theory from emission spectra. The photometric characterizations and corresponding calculations indicated the suitability of the phosphor for display devices.
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 callMore From: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy
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.
