Investigation of structural and thermal response of Sm 3+ doped Sr 3 MgSi 2 O 8 phosphors
- PDF / 1,784,454 Bytes
- 16 Pages / 439.37 x 666.142 pts Page_size
- 106 Downloads / 211 Views
Investigation of structural and thermal response of Sm3+ doped Sr3MgSi2O8 phosphors Pradeep Dewangan1,2 · D. P. Bisen1 · Nameeta Brahme1 · Shweta Sharma1 · Raunak Kumar Tamrakar3 · Ishwar Prasad Sahu4 Received: 21 March 2020 / Accepted: 15 September 2020 © Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract Present study deals with the effect of Sm3+ doping on crystal and optical behaviour of Sr3MgSi2O8. For these studies prepared phosphor was characterized by using X-ray powder diffraction and luminescence spectra by recording excitation and emissions spectra. Emission spectra have emission wave lengths centered at 490 nm and 545 nm. Effect of Sm3+ ion concentration shows dipole–dipole interaction was responsible for the quenching shown by phosphor. The thermoluminescence curves were used to define the ability of the trap to trapping the carriers for Sm3+ doped Sr3MgSi2O8 phosphor. Keywords Sr3MgSi2O8:Sm3+ · Solid state reaction method · Luminescence
1 Introduction Rare earth doped S r3MgSi2O8 phosphors have been broadly contemplated by scientists inferable from their interesting physical and optical properties. These nanomaterials have been used in device fabrication, enthusiasm for examination of their conceivable ease of use in various fields of gadget applications. They may take jobs in part of gadgets, for example, opto-electronics, sensors, identifiers, im-petuses, luminescent and bio-medical gadgets. A few kinds of silicate-based phosphor have been found and examined (Talwar et al. 2009; Klasens et al. 1957; Barry 1968; Blasse et al. 1968; Liu et al. 2014; Pan et al. 2011).
* Pradeep Dewangan [email protected] 1
SoS in Physics and Astrophysics, Pt. Ravishankar Shukla University, Raipur, Chhattisgarh 492010, India
2
Department of Physics, Faculty of Science, Shri Rawatpura Sarkar University, Raipur, Chhattisgarh 492015, India
3
Department of Applied Physics, Bhilai Institute of Technology (Seth Balkrishan Memorial), Near Bhilai Power House, Durg, Chhattisgarh 49100, India
4
Department of Physics, Indira Gandhi National Tribal University, Amarkantak, Madhya Pradesh 484887, India
13
Vol.:(0123456789)
441
P. Dewangan et al.
Page 2 of 16
In this type of material synthesis temperature play a major role to produce pure phases materials, its luminescent brightness, brilliance and luminescence characteristics. Recently, silicate based materials have been extensively studied as host lattices for rare earth doping, which show un-usual, interesting luminescence properties (Pan et al. 2011; Zhang et al. 2016; Wang et al. 2018; Jung and Seo 2006). Previously, optical and thermal response was investigations were achieved and reported for Sr3MgSi2O8:Sm3+ phosphor (Pan et al. 2011). In present study, synthesis, crystal structure, photoluminescence and thermoluminescence properties of Sm3+ doped Sr3MgSi2O8 phosphor. The phase purity and structure was characterized by XRD, morphology and particle size determination was performed by SEM and TEM respe
Data Loading...
