Spectroscopic Properties of Er3+ Doped in Zinc Lithium Calcium Potassiumniobate Phosphate Glasses

Abstract

Zinc lithium calcium potassiumniobate phosphate glasses containing Er3+ in (45-x): P2O5:10ZnO:10Li2O:10CaO:10K2O:15Nb2O5:xEr2O3. (where x=1, 1.5,2 mol %) have been prepared by melt-quenching method. The amorphous nature of the glasses was confirmed by x-ray diffraction studies. Optical absorption, Excitation, and fluorescence spectra were recorded at room temperature for all glass samples. Judd-Ofelt intensity parameters ?? (?=2, 4, 6) are evaluated from the intensities of various absorption bands of optical absorption spectra. Using these intensity parameters various radiative properties like spontaneous emission probability, branching ratio, radiative life time and stimulated emission cross–section of various emission lines have been evaluated.

Introduction

I. INTRODUCTION

Rare-earth ions doped glass-ceramics are important materials for optical fibers, wave guide lasers, sensors and optical amplifiers [1-5].Oxide glasses are the most stable host matrices for practical applications due to their high chemical durability and thermal stability[6-10].Phosphate glasses are extremely attractive materials for linear and non-linear application in optics, due to their important aspects such as their low melting temperature, low phonon energy, high refractive index, high dielectric constant, good chemical durability, high thermal stability, good solubility of rare earth ions[11-16].The addition of heavy metal oxide to phosphate glasses decreases the phonon energy. Thus, leads to increase in its quantum efficiency of luminescence from the exited state of rare earth ions .Er3+ doped rare earth doped glasses considerable literature has recently emerged concerning the structure, optical, mechanical, thermal, and electrical properties [17-20].

In this work, the spectroscopic properties of Er3+ -doped (45-x): P2O5:10ZnO:10Li2O:10CaO:10K2O:15Nb2O5:xEr2O3 (where x=1, 1.5,2 mol %) glasses were investigated. The Optical absorption, Excitation and fluorescence spectra of Er3+ of the glasses were investigated. The intensities of the transitions for the rare earth ions have been estimated successfully using the Judd-Ofelt theory, The laser parameters such as radiative probabilities(A),branching ratio (β), radiative life time(τR) and stimulated emission cross section(σp) are evaluated using J.O.intensity parameters( Ωλ, λ=2,4 and 6).

II. EXPERIMENTAL TECHNIQUES

A. Preparation of Glasses    

The following Er3+ doped zinc lithium calcium potassiumniobate phosphate glass samples (45-x): P2O5:10ZnO:10Li2O:10CaO:10K2O:15Nb2O5:xEr2O3 (where x=1, 1.5.2) have been prepared by melt-quenching method. Analytical reagent grade chemical used in the present study consist of P2O5, ZnO, Li2O, CaO, K2O, Nb2O5 and Er2O3. All weighed chemicals were powdered by using an Agate pestle mortar and mixed thoroughly before each batch (10g) was melted in alumina crucibles in silicon carbide based an electrical furnace.

Silicon Carbide Muffle furnace was heated to working temperature of 10700C, for preparation of zinc lithium calcium potassiumniobate phosphate glasses, for two hours to ensure the melt to be free from gases. The melt was stirred several times to ensure homogeneity. For quenching, the melt was quickly poured on the steel plate & was immediately inserted in the muffle furnace for annealing. The steel plate was preheated to1000C.While pouring; the temperature of crucible was also maintained to prevent crystallization. And annealed at temperature of 3500C for 2h to remove thermal strains and stresses. Every time fine powder of cerium oxide was used for polishing the samples. The glass samples so prepared were of good optical quality and were transparent. The chemical compositions of the glasses with the name of samples are summarized in Table 1

Conclusion

In the present study, the glass samples of composition (45-x): P2O5:10ZnO:10Li2O:10CaO:10K2O:15Nb2O5:xEr2O3 (where x =1, 1.5, 2 mol %) have been prepared by melt-quenching method. The value of stimulated emission cross-section (?p) is found to be maximum for the transition (4F7/2?4I15/2) for glass ZLCPNP (ER 01), suggesting that glass ZLCPNP (ER 01) is better compared to the other two glass systems ZLCPNP (ER1.5) and ZLCPNP (ER02).

References

David L Veasey, David S Funk, Philip M peters, Norman A Sanford, Gregory P Peskin, Wei- Chin Liu, SN Houde walter, Joseph S Hayden (2000). Yb/Er co-doped waveguide lasers in phosphate glass, J. of non cryst. Solids 263,369-381. Meena, S.L. (2022). Spectral and Upconversiuon Properties of Eu3+Doped in Zinc Lithium Cadmium Alumino Borogerminate Glasses, Int. J. of Inn. Res. in Sci.,Eng.and Tech., 11(2), 1675-1681. Reddy,B. N. K., Sailaja, S., Thyaga rajan, K. and Sudhakar Reddy, B.(2020). study of RE ion doped oxide materials wood head publishing, 293-304. Kolavekar,S. B. and Ayachit, N.H. (2019). Synthesis of Praseodymium trioxide doped lead boro tellurite glasses and their optical and physical properties, J.of Materiomics ,5, 455-462. Kaur,A., Khanna, A. and Aleksandrov, L.I.(2017). Structural, thermal, optical and photo luminescent properties of barium tellurite glasses doped with rare earth ions, Journal of Non-Crystalline Sollids 476,67-74. Meena, S.L.(2022). Spectral and FTIR Analysisof Ho3+ ions doped Zinc LithiumTungsten Alumino Bismuth borate Glasses, Int. J. of Eng. And Sci. Inv., 11(6), 57-63. Rao,V.R. and Jayasankar, C.K.(2019).Spectroscopic investigation on multi-channel visible and NIR emission of Sm3+ doped alkali-alkaline earth fluoro phosphate glasses,Opt.Mater,91,7-16. Kashif ,I., Ratep,A. and Ahmed,S.(2020).Spectroscopic properties of lithium borate glass containing Sm3+ and Nd3+ ions, Int. J. of Adv. in App. Sci. 9( 3), 211-219. Kumar, G.R. and Rao, C.S.(2020).Influence of Bi2O3, Sb2O3 and Y2O3 on optical properties of Er2O3-doped CaO–P2O5–B2O3 glasses, , Bull. Mater. Sci. 43:71, 1-7 Yasukevich, A. S., Rachkovskaya, G.E., Zakharen, G.B., Trusova, E.E., Kornienko, A. A., Dunina, E.B., Kisel,V. E. and Kuleshov, N. V.(2020).Spectral luminescence properties of oxyfluoride lead silicate germante glass doped with Tm^(3+) ions,Journal of luminescence, 117667. Yaacob,SNS , Sahar, MR, Sazali, ES, Mahraz, Z. A., Sulhadi, K., Mahraz, Z.A. and Sulhadi, K.(2018).Comprehensive study on compositional modification of Tb3+ doped Zinc phosphate Glass, Solid State Sciences 81,51-57. Deepa, A. V., murygasen, Priya, Muralimanohar, P., Sathyamoorthy, K.and Vinothkumar, P.(2019). A comparison on the structural and optical properties of different rare earth doped phosphate glass, Optik, 181,361-367. Shikerkar, A.G., Desa, J.A.E., Krishna, P.S.R. and Chitr, R.(2000).Diffraction studies of rare earth phosphate glasses, J. of Non- crystalline solids,270,234-246. Mandal, P., Chowdhary, S. and Ghosh,S.(2019). Spectroscopic characterization of Er3+ doped lead zinc phosphate glass via Judd- Ofelt analysis, Bulletin of Materials Science 42. El Maaref, A.A., Badr, S., Shaaban, Kh.S., Abdel Wahab, E.A. and Elokr,M.M.(2019). Optical properties and radiative rates of Nd3+ doped zinc- sodium phosphate Glasses,” Journal of rare Earth, 37, 253-259. Meena S.L.(2021). Spectral and Transmittance properties of Ho3+ ions doped Zinc LithiumLead Calcium Borophosphate Glasses,10(9),50-56. Lemiere, A., Bondzior. B., Aromäki, I.and Petit, L.(2022). Study of visible, NIR, and MIR spectroscopic properties of Er3+-doped tellurite glasses and glass–ceramics, J. Am. Ceram Soc.,105,7186–7195. Zhang Y, Xia L, Li C, Ding J, Li J and Zhou X.(2021). Enhanced 2.7 µm mid-infrared emission in Er3+/Ho3+ co-doped tellurite glass. Opt Laser Technol.138:106913. Aouaini, F., Maaoui, A., Mohamed, N.B.H., Alanazi. M.M. and El Maati LA. (2022).Visible to infrared down conversion of Er3+ doped tellurite glass for luminescent solar converters. J Alloys Compd. 894:162506. Romanowski, W. R., Komar J. and Lisiecki, R.(2022).Examining the Spectroscopic and Thermographic Qualities of Er3+-doped Oxyfluoride Germanotellurite Glasses, Materials , 15,2-14. Gorller-Walrand, C. and Binnemans, K. (1988). Spectral Intensities of f-f Transition. In: Gshneidner Jr., K.A. and Eyring, L., Eds., Handbook on the Physics and Chemistry of Rare Earths, Vol. 25, Chap. 167, North-Holland, Amst., 101. Sharma, Y.K., Surana, S.S.L. and Singh, R.K. (2009). Spectroscopic Investigations and Luminescence Spectra of Sm3+ Doped Soda Lime Silicate Glasses. Journal of Rare Earths, 27, 773. Judd, B.R. (1962). Optical Absorption Intensities of Rare Earth Ions. Physical Review, 127, 750. Ofelt, G.S. (1962). Intensities of Crystal Spectra of Rare Earth Ions. The Journal of Chemical Physics, 37, 511. Sinha, S.P. (1983). Systematics and properties of lanthanides, Reidel, Dordrecht. Krupke, W.F. (1974).IEEE J. Quantum Electron QE, 10,450.

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Copyright © 2022 Pankaj Deedwaniya , S. L. Meena. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.