We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Photoluminescence Studies of Bluish-White Emission from Dy<sup>3+</sup>-Activated Li<sub>2</sub>CaSiO<sub>4</sub> Phosphor.
- Authors
Parimala, M. P. D.; Rao, M. C.; Dubey, V.; Murthy, K. V. R.
- Abstract
Dy3+-doped Li2CaSiO4 phosphors were prepared by high temperature solid-state reaction. Structural studies were carried out using X-ray diffraction technique. Scanning electron microscopy was used to get information about the morphology of the prepared samples. Also, photoluminescence analysis of the phosphor samples for different concentrations of the doping ion with variable excitations was presented. When doped with Dy3+, Li2CaSiO4 emits intense emission bands at 485 and 576 nm (excited at 353 nm). Our study shows that the as-prepared phosphor may be useful in white light-emitting diodes as a bluish component. The corresponding transitions of the doping ion and concentration quenching effect were studied in detail. The CIE 1931 (x, y) chromaticity coordinates (x = 0.24 and y = 0.31) show the distribution of the spectral region calculated from photoluminescence emission spectra.
- Subjects
KASHIO Keisanki KK; PHOTOLUMINESCENCE; PHOSPHORS; LIGHT emitting diodes; TERBIUM; SCANNING electron microscopy; DOPING agents (Chemistry)
- Publication
Journal of Applied Spectroscopy, 2023, Vol 90, Issue 2, p461
- ISSN
0021-9037
- Publication type
Article
- DOI
10.1007/s10812-023-01554-2