Estimation of spectroscopic parameters and TL glow curve analysis of Eu3+-activated CaY2O4 phosphor
- Title
- Estimation of spectroscopic parameters and TL glow curve analysis of Eu3+-activated CaY2O4 phosphor
- Creator
- Ram T.; Verma N.; Kaur J.; Misra A.K.; Dubey V.; Dubey N.; Michalska-Doma?ska M.; Saji J.; Yadav R.S.
- Description
- The solid-state reaction method was utilised to create a down-conversion phosphor in an air environment in CaY2O4:Eu3+ nanocrystalline material. The calcination temperature was set at 1000 C, and the sintering temperature was set at 1300 C. Following annealing, confirmation of the crystallinity quality of the phosphor was accomplished by the use of X-ray diffraction analysis. The particle size was predicted to be 43.113 nm using Scherrer's formula. To produce down-conversion luminescence spectra, an excitation wavelength of 247 nm was applied with a fluorescence spectrophotometer. The PL got increasingly intense as the concentration of the dopant increased. The maximum intensity was measured at 2.0 mol% of Eu3+ ion, which gradually decreased as the concentration increased because of concentration quenching. To analyse spectrophotometric peak determinations, the approach developed by the Commission Internationale de l'lairage (CIE) was used. Thermoluminescence (TL) glow curve analysis of the CaY2O4:Eu3+-doped phosphor manufactured here revealed a wide TL centred at 225 C, which comprised of so many peaks that may be extracted by the computerised glow curve deconvolution (CGCD) approach using glow-fit software. The associated kinetic parameters were then determined. The prepared phosphor may be useful for application in various display devices upon excitation by 247 nm; the prominent 613 nm peak of the Eu3+ ion (5D0 ? 7F2) electric dipole transition features a red component. CaY2O4:Eu3+ phosphors show promise as materials for potential use in phosphor-converted white LEDs in the field of solid-state lighting technology. The linear connection that the TL glow curve has with UV dose provides evidence for its possible use in dosimetry. 2023 The Royal Society of Chemistry.
- Source
- RSC Advances, Vol-13, No. 38, pp. 26357-26365.
- Date
- 2023-01-01
- Publisher
- Royal Society of Chemistry
- Coverage
- Ram T., Department of Physics, Government Vishwanath Yadav Tamaskar Post Graduate Autonomous College, C.G., Durg, India; Verma N., Department of Physics, Government Vishwanath Yadav Tamaskar Post Graduate Autonomous College, C.G., Durg, India; Kaur J., Department of Physics, Government Vishwanath Yadav Tamaskar Post Graduate Autonomous College, C.G., Durg, India; Misra A.K., Department of Physics, Government Vishwanath Yadav Tamaskar Post Graduate Autonomous College, C.G., Durg, India; Dubey V., Department of Physics, North Eastern Hill University (NEHU), Meghalaya, Shillong, 493022, India; Dubey N., Department of Physics, Government Vishwanath Yadav Tamaskar Post Graduate Autonomous College, C.G., Durg, India; Michalska-Doma?ska M., Institute of Optoelectronics, Military University of Technology, Kaliskiego 2, Mazovia, Warsaw, 00-908, Poland; Saji J., Department of Sciences and Humanities, School of Engineering and Technology CHRIST (Deemed to be University), Bangalore, India; Yadav R.S., Department of Statistics, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
- Rights
- All Open Access; Gold Open Access; Green Open Access
- Relation
- ISSN: 20462069; CODEN: RSCAC
- Format
- Online
- Language
- English
- Type
- Article
Collection
Citation
Ram T.; Verma N.; Kaur J.; Misra A.K.; Dubey V.; Dubey N.; Michalska-Doma?ska M.; Saji J.; Yadav R.S., “Estimation of spectroscopic parameters and TL glow curve analysis of Eu3+-activated CaY2O4 phosphor,” CHRIST (Deemed To Be University) Institutional Repository, accessed February 25, 2025, https://archives.christuniversity.in/items/show/14045.