Improved photoluminescence in Eu3+ doped LaVO4 phosphor via co-doping of Li+/Ca2+ ions

• Published in: Journal of luminescence 2022-01, Vol.241, p.118519, Article 118519
• Main Authors: Rai, Ekta, Yadav, Ram Sagar, Kumar, Dinesh, Singh, Akhilesh Kumar, Fulari, Vijay Janardhan, Rai, Shyam Bahadur
• Format: Article
• Language: English
• Subjects: Lanthanide ion; LaVO4; Li+ and Ca2+ ions; Phosphor; Solid state reaction method
• ISSN: 0022-2313; 1872-7883
• DOI: 10.1016/j.jlumin.2021.118519

This paper investigates the structural and optical properties of Eu3+ doped LaVO4 phosphor via co-doping of Li+ and Ca2+ ions. The unit cell volume and particles size vary with Li+ and Ca2+ ions. The Eu3+ doped phosphor emits intense red color at 613 nm due to Eu3+ ion on excitation with 266, 355 and 394 nm. The photoluminescence intensity of Eu3+ doped phosphor is enhanced up to 2.1 and 4.5 times via co-doping of Li+ and Ca2+ ions, respectively. Therefore, the Eu3+, Li+, Ca2+ co-doped LaVO4 phosphor may be suitable candidate for the development of display devices and white light emitting diodes. [Display omitted] •The Eu3+ doped LaVO4 phosphors were prepared through solid state reaction method.•The structural analysis reveals the crystalline nature of phosphor materials.•The Eu3+ doped phosphor emits intense red color at 613 nm on excitation with 394 nm.•PL intensity of Eu3+ doped phosphor is enhanced up to 2.1 and 4.5 times through co-doping of Li+ and Ca2+ ions, respectively.