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Abstract
The series of Mn2+ single doped fluoride-based K3Ca2(SO4)3F phosphor was prepared by the conventional high temperature solid-state reaction method. The formation of phase purity and morphology was studied by the XRD and SEM analyses. The prepared material was irradiated by γ-rays from 60Co source and the thermoluminescence (TL) characteristic was carried out by Nucleonix 1009I TL reader. The prominent TL dosimetry peak observed for K3Ca2(SO4)3F:1mol% Mn2+, annealed at 800°C centred at 217°C, revealed deeper traps. The TL exhibits a linear response as a function of dose rate up to 4 kGy. The computerised glow curve deconvolution (GCD) method, employed for the analysis of TL glow curve, shows the kinetics of the first order. The trapping parameters were evaluated using Chen’s peak shape method, initial rise method and Ilich method. The results exhibit that the synthesised phosphor was found to be a potential candidate for radiation dosimetry applications.
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Notes on contributors
M. D. Mehare
Mr. M. D. Mehare is working as Assistant Professor in Department of Applied Physics, Priyadarshini College of Engineering, Nagpur, India. He obtained his Master degree from R.T.M Nagpur university, Nagpur in 2005 and completed his M.Phil. (Physics) from Alagappa University Karaikudi (TN) in 2009. He obtained his Ph.D. degree in Physics from R.T.M. Nagpur university, Nagpur (M.S). He has published two patents and more than 15 research papers in international and national journals. He received best paper presentation award in ICMBAT-2018. He also cleared national level examinations (NET) UGC-CSIR (all India rank 259). He is author for one B.E. syllabus book (Advanced Physics) and also life member of various professional bodies like Indian Association of Physics Teachers (IAPT), Indian Society for Technical Education (ISTE), International Association of Engineers (IAENG).
C. M. Mehare
Mrs. C. M. Mehare has obtained M.Sc. degree in Chemistry from Sant Gadge Baba Amravati University, Amravati (India) in 2013. Presently she is working in nanomaterial laboratory, under the supervision of Dr.S.J.Dhoble professor, Department of Physics, R.T.M. Nagpur University, Nagpur India. Her research area is synthesis of phosphors for white light emitting diodes (w-LEDs) for solid-state lighting. She has published two patent and fourteen research papers in various referred international journals and conferences, also received best research poster presentation awards in (NCSCA-2019) and (NSIMD-2019).
N. S. Dhoble
Dr. N. S. Dhoble achieved her Ph.D. degree from R. T. M. Nagpur University, Nagpur. She has published more than 128 research papers in international and national journals. Her Scopus h - index is 17 and has citations over 884 on Scopus. She supervised 6 doctoral students as a supervisor and co - supervisor. She has been author for 38 B.Sc. syllabus books and also co - author for chapter “Li based Phosphors for Thermoluminescence Dosimetry” (published in CRC press). She successfully completed a major project and a minor project sponsored by Government of India. She received “The 20th Century awards for achievement” (4th Feb 2000) and “Intellectual Women Scientist of 2012” by International Biological Centre, Cambridge, England.
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. Dr. S.J. Dhoble is presently working as a Professor in the Department of Physics, R.T.M. Nagpur University, Nagpur, India. During his research career, he has worked on the synthesis and characterization of solid-state lighting materials, as well as development of radiation dosimetry phosphors using thermoluminescence technique and utilization of fly ash. Dr. Dhoble published/filed 32 patents and more than 682 research papers published in Scopus indexing journals. His h-index 35 and citations 7284 on Scopus. He also authored an Elsevier book on “Principles and applications of organic light emitting diode”, “Nanomaterials for Green Energy”, “Spectroscopy of Lanthanide Doped Oxide Materials”; Springer book on “Phosphate phosphors for solid state lighting”; Taylor &Francis Group book on “Phosphors for energy saving and conversion technology”; Pan Stanford Publishing Pte. Ltd book on “Phosphors: Synthesis and Applications”. Dr. Dhoble is Editor: Luminescence: The Journal of Biological and Chemical Luminescence, John Wiley & Sons Ltd. Publication (Impact Factor: 1.691). He is also recipient of India's Top Faculty Research Award-2018 by Careers 360, received in Teen Murti Bhawan, New Delhi, for the top ten researchers in India in Physics on the basis of research papers published in Scopus research database in session 2017-2018, on 20th March 2018.