Structural and spectral studies of Ce3+ doped Sr3Y(BO3)3 nano phosphors prepared by combustion synthesis. (7th June 2022)

• Record Type: Journal Article
• Authors: Hargunani, Sanjay Prakash; Sonekar, Rajkumar Pandurang; Singh, Anoop; Khosla, Ajit; Arya, Sandeep
• Is Part Of: Materials technology. Volume 37:Number 7(2022)
• Page Start: 450
• Page End: 461
• Publication Date: 2022-06-07
• Subjects: Blue phosphor -- solid-state lighting -- photoluminescence -- transilluminators; Materials -- Periodicals; Materials science -- Periodicals; Materials -- Technological innovations -- Periodicals; 620.1105
• DOI: 10.1080/10667857.2020.1859052
• Languages: English
• ISSNs: 1066-7857

Abstract

ABSTRACT: In this work, a series of Ce 3+ activated Sr3 Y(BO3 )3 phosphors were synthesized by the solution combustion method. The synthesized phosphors were characterized via X-ray diffraction (XRD), scanning electron microscopy (SEM) and Fourier-transform infrared (FTIR) spectroscopy for their structural and morphological studies. Further, the optical properties of phosphors were studied via photoluminescence emission (PLE) spectroscopy. The results showed a broad photoluminescence excitation wavelength band from 250 to 380 nm. The PLE spectrum consists of a major peak centered at 340 nm. Concentration quenching for 433 nm emission line is observed at 8 mol% of Ce 3+ ion and it is due to electrical multipolar interaction. The non-radiative transition between Ce 3+ ions occurs via dipole–dipole interaction for the concentration quenching of Ce 3+ in Ce 3+ doped Sr3 Y(BO3 )3 . The CIE-coordinates for PL emission at 8 mol% concentration of Ce 3+ are obtained as (X = 0.1677, Y = 0.0078).