Thermoluminescence properties and evaluation of trapping parameters of Eu³⁺ and Dy³⁺ activated K₃Ca₂(SO₄)₃Cl phosphors

ABSTRACT

In this study, we have reported thermoluminescence (TL) properties and trapping parameters of Eu³⁺ and Dy³⁺_-doped K₃Ca₂(SO₄)₃Cl phosphors. The host materials have been prepared by a simple cost-effective wet chemical method. The TL glow curves of γ-irradiated halo-sulfate phosphors are observed at a constant heating rate of 5°C/s and a dose rate of 0.3712 kGy/hr for 3Gy dose. The TL glow curve of synthesized phosphor samples has a simple glow curve with an isolated peak. K₃Ca₂(SO₄)₃Cl:Eu³⁺ phosphors show TL response linearity in the range of 12Gy–62Gy. But, K₃Ca₂(SO₄)₃Cl:Dy³⁺ phosphors show TL response linearity in the range of 12Gy–87Gy. In this work, we have also calculated the trapping parameters of synthesized phosphors by different methods, such as Chen’s peak shape method, Initial Rise (IR) Method, Ilich method, E-Shape glow curve method, E-Luschik methods, E-Halperin and Braner method. An easy method of synthesis, simple glow curve with isolated peak, efficient dose response, low value of activator concentration and low fading suggests that these phosphors may be potential candidates for thermoluminescence dosimetry and image storage.

KEYWORDS:

• Thermoluminescence
• wet chemical method
• halo-sulfate phosphors
• trapping parameters
• dosimetry

Disclosure statement

No potential conflict of interest was reported by the author(s).

Correction Statement

This article has been corrected with minor changes. These changes do not impact the academic content of the article.

Additional information

Notes on contributors

Nahida Baig

Dr. Nahida Baig obtained her PhD degree in Physics from Rashtra Sant Tukadoji Maharaj Nagpur University Nagpur, India. Presently she is Associate Professor in Physics at Janata Mahavidyalaya, Chandrapur, M.S. India. She has about 15 years of teaching experience at undergraduate and post graduate level. Her current research interests are in the areas of Synthesis and Characterization of Luminescent Materials. She has published about 14 research papers and attended several National and International Conferences in this area. She is also a member of Board of Studies in Physics at Gondwana University Gadchiroli, India.

N.S. Dhoble

Dr. N. S. Dhoble is presently working as Professor in Department of Chemistry, Sevadal Mahila Mahavidhyalaya, Nagpur. She is obtained PhD degree in 1993 from R.T.M Nagpur University, Nagpur. She has 26 years of teaching and 25 Years of Research Experience. She worked on the synthesis and characterization of inorganic phosphor, development of radiation dosimetry phosphors using thermo luminescence technique and ionizing radiation. She is published/filed 09 patents and 100 research papers published in Scopus indexing journals. She is also author of 36 books in UG level.

Yatish R. Parauha

Yatish R. Parauha, is pursuing Ph.D. in Materials Science, from Department of Physics, RTM Nagpur University, Nagpur. He obtained his M.Sc degree in Physics, 2017 from Govt. Model Science (Autonomous) College Jabalpur, which is affiliated by Rani Durgavati University, Jabalpur. Presently working as DST INSPIRE Research Fellow in Department of Physics, RTM Nagpur University, Nagpur. He is working under the guidance of Dr. S.J. Dhoble, Professor at Department of Physics, R.T.M Nagpur University, Nagpur. He leads an active research field that focuses on the synthesis, optical spectroscopy of various luminescent materials. In the field of rare earth activated luminescent material his recent work involves fundamental research on finding new concepts also related to applications in WLEDs, TL Dosimetric Phototherapy and display devices. Mr. Yatish has published 23 research papers in the Scopus indexing journals and 4 UGC listed journals. He has 3 patents granted and 3 patents are published.

Meenal Joshi

Meenal Joshi has completed her Masters (MSc.) in Analytical Chemistry in year 2003 from Post Graduate Teaching Department, R. T.M. Nagpur University, Nagpur, India. She did Ph.D. in Chemistry in year 2013 from Post Graduate Teaching Department, R. T.M. Nagpur University in collaboration with CSIR-National Environmental Engineering and Research Institute, Nagpur, India. She was awarded with Senior Research Fellowship by Centre for Scientific and Industrial Research (CSIR), New Dehli, India, (2009-2012) and also worked as Quick Hire Fellow Under the Quick Hire Scheme of CSIR in NEERI, Nagpur, June 2013 to June 2015. She also received Outstanding Young researcher Award April 2015 for significant contribution to R&D in Environmental Science & Engineering by CSIR-NEER, Nagpur. Presently she is working as Assistant Professor in Engineering College, Nagpur, India. Her area of interest includes Photocatalysis, material science, Nanomaterial synthesis, dye degradation, water splitting for hydrogen generation, carbon sequestration etc. She has 16 SCI publications and one world patent along with one Indian patent to her credit. Total citations are 648, h-index is 12 and i-10 index is13.

S.J. Dhoble

Prof. S. J. Dhoble obtained his M.Sc. degree in Physics from Rani Durgavati University, Jabalpur, India in 1988. He obtained his Ph.D. degree in 1992 in Solid State Physics from Nagpur University, Nagpur, India. Dr. Dhoble is presently working as a Professor in the Department of Physics, Rashtrasant Tukadoji Maharaj Nagpur University, Nagpur, India. He has about 29 years of teaching at undergraduate and post graduate level and 28 years research experience. Dr. Dhoble stands among the ‘Top 2% Scientists in the World' in the prestigious list published by a team of scientists in US' Stanford University, in one of the highly rated journals, PLOS Biology. During his research career, he has worked on the synthesis and characterization of solid-state lighting materials and phosphors for solar cell efficiency enhancement, as well as development of radiation dosimetry phosphors. Dr. Dhoble published 41 patents and few of them are already granted (Granted patents are 10: 01 South Korean, 07 Australian and 02 Indian). More than 692 research papers are published in Scopus indexing journals and his h-index is 35 and has 7321 citations on Scopus. Dhoble's citation on Google Scholar is 9242 and h-index is 40 and i10-index is 274. Dr. Dhoble also published 19 books at International level, such as: Elsevier, Springer, CRC press and NOVA publications. Dr. Dhoble successfully guided 65 students for Ph.D. degree. He also edited/authored 16 International books. Dr. Dhoble is an Editor of ‘Luminescence: The Journal of Biological and Chemical Luminescence', John Wiley & Sons Ltd. Publication. He is also a recipient of India’s Top Faculty Research Award-2018 by Careers 360, for the top ten researchers in India in Physics on the basis of the research papers published in Scopus research database in the session 2017-2018, on 20th March 2018. He is also a Fellow of the Luminescence Society of India (LSI) and Fellow of Maharashtra Academic of Sciences (MASc).