najoNanosystems: Physics, Chemistry, MathematicsНаносистемы: физика, химия, математика2220-80542305-7971Университет ИТМОnajo-1348Research ArticleCHEMISTRY AND MATERIAL SCIENCEХИМИЯ И МАТЕРИАЛОВЕДЕНИЕSynthesis of hexagonal LaF3: Nd3+, Sm3+ nano crystals and studies of NLO propertiesGaurkhedeS. G.

Department of Physics

Andheri (W) Mumbai-400058

s.gaurkhede@gmail.comKhandpekarM. M.

Material Research Lab, Department of Physics

Kalyan – 421304

PatiS. P.

Palur Hills, Behrampur-761008, Odisha

SinghA. T.

Department of Physics

Kalyan-421301

Bhavans College of ASCIndiaBirla CollegeIndiaNational Institute of Science and TechnologyIndiaK.M. Agarwal College of ASCIndia20132208202542241246Copyright © Gaurkhede S.G., Khandpekar M.M., Pati S.P., Singh A.T., 20252025Gaurkhede S.G., Khandpekar M.M., Pati S.P., Singh A.T.Gaurkhede S.G., Khandpekar M.M., Pati S.P., Singh A.T.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://nanojournal.ifmo.ru/jour/article/view/1348

Hexagonal shaped LaF3 nanocrystals (NC) doped by Nd3+ and Sm3+ ions were synthesized using a domestic microwave oven. The powder XRD study confirmed that the crystalline size of the particle was approximately 20 nm (JCPDS standard card (32–0483) of pure hexagonal LaF3 crystals). The Transmission Electron Microscope (TEM) analysis indicated the size of the primary and secondary particles were between 15–20 nm. The presence of fundamental groups was verified by FTIR spectra. The synthesized nanocrystals were also studied for Non-Linear Optical (NLO) properties. The Second Harmonic Generation (SHG) efficiencies of LaF3: Nd3+, Sm3+containing rare earth elements were found to be less than that of pure Potassium Dihydroxyl Phosphate (KDP) crystals. Keywords: microwave radiation, hexagonal shape, luminescent properties, x-ray diffraction.

microwave radiationhexagonal shapeluminescent propertiesx-ray diffractionReferencesB.M. Tissue. Synthesis and luminescence of lanthanide ions in nanoscale insulating hosts. Chemistry of Materials, 10 (10), P. 2837–2845 (1998).B.M. Tissue. Synthesis and luminescence of lanthanide ions in nanoscale insulating hosts. Chemistry of Materials, 10 (10), P. 2837–2845 (1998).H. Song, B. Chen, et al. Ultraviolet light-induced spectral change in cubic nano-crystalline Y2O3: Eu3+. Chemical Physics Letters, 372 (3), P. 368–372 (2003).H. Song, B. Chen, et al. Ultraviolet light-induced spectral change in cubic nano-crystalline Y2O3: Eu3+. Chemical Physics Letters, 372 (3), P. 368–372 (2003).M. Nishi, S. Tanabe, et al. Optical telecommunication- band fluorescence properties of Er3+-doped YAG nanocrystals synthesized by glycothermal method. Optical Materials, 27 (4), P. 655–662 (2005).M. Nishi, S. Tanabe, et al. Optical telecommunication- band fluorescence properties of Er3+-doped YAG nanocrystals synthesized by glycothermal method. Optical Materials, 27 (4), P. 655–662 (2005).M.M. Lezhnina, H. Kaetker, U.H. Kynast. Synthesis and optical characterization of rare earth nanofluorides. Optical Materials, 30 (2), P. 264–272 (2007).M.M. Lezhnina, H. Kaetker, U.H. Kynast. Synthesis and optical characterization of rare earth nanofluorides. Optical Materials, 30 (2), P. 264–272 (2007).Y.X. Pan , Q. Su, et al. Synthesis and red luminescence of Pr3+ doped CaTiO3 nanophosphor from polymer precursor. J. Solid State Chem, 174 (1), P. 69–73 (2003).Y.X. Pan , Q. Su, et al. Synthesis and red luminescence of Pr3+ doped CaTiO3 nanophosphor from polymer precursor. J. Solid State Chem, 174 (1), P. 69–73 (2003).P.Y. Jia, J. Lin, M. Yu. Sol-gel deposition and luminescence properties of LiYF4: Tb3+ thin films. Journal of Luminescence, 122 (1), P. 134–136 (2007).P.Y. Jia, J. Lin, M. Yu. Sol-gel deposition and luminescence properties of LiYF4: Tb3+ thin films. Journal of Luminescence, 122 (1), P. 134–136 (2007).S. Sivakumar, F.C.J.M. Van Veggel, P.S. May. Near-infrared (NIR) to red and green up-conversion emission from silica sol-gel thin films made with La045Yb050Er005F3 nanoparticles, hetero-looping-enhanced energy transfer (Hetero LEET): a new up-conversion process. Journal of the American Chemical Society, 129 (3), P. 620–625 (2007).S. Sivakumar, F.C.J.M. Van Veggel, P.S. May. Near-infrared (NIR) to red and green up-conversion emission from silica sol-gel thin films made with La045Yb050Er005F3 nanoparticles, hetero-looping-enhanced energy transfer (Hetero LEET): a new up-conversion process. Journal of the American Chemical Society, 129 (3), P. 620–625 (2007).J.S. Zhang, W.P. Qin, D. Zhao. Spectral variations and energy transfer processes on both Er3+ ion concen tration and excitation densities in Yb3+-Er3+ co-doped LaF3 materials. Journal of Luminescence, 122 (2), P. 506–508 (2007).J.S. Zhang, W.P. Qin, D. Zhao. Spectral variations and energy transfer processes on both Er3+ ion concen tration and excitation densities in Yb3+-Er3+ co-doped LaF3 materials. Journal of Luminescence, 122 (2), P. 506–508 (2007).F. Evanics, P.R. Diamente, et al. Water-soluble GdF3 and GdF3/LaF3 nanoparticles-physical characterization and NMR relaxation properties. Chemistry of Materials, 18 (10), P. 2499–2505 (2006).F. Evanics, P.R. Diamente, et al. Water-soluble GdF3 and GdF3/LaF3 nanoparticles-physical characterization and NMR relaxation properties. Chemistry of Materials, 18 (10), P. 2499–2505 (2006).F. Wang, Y. Zhang, X. Fan, M. Wang. One-pot synthesis of chitosan / LaF3:Eu3+ nanocrystals for bio applications. Nanotechnology, 17 (5), P. 1527–1532 (2006).F. Wang, Y. Zhang, X. Fan, M. Wang. One-pot synthesis of chitosan / LaF3:Eu3+ nanocrystals for bio applications. Nanotechnology, 17 (5), P. 1527–1532 (2006).P.R. Diamente, F.C.J.M. Van Veggel. Water-soluble Ln3+-doped LaF3 nanoparticles: retention of strong luminescence and potential as biolabels. Journal of Fluorescence, 15 (4), P. 543–551 (2005).P.R. Diamente, F.C.J.M. Van Veggel. Water-soluble Ln3+-doped LaF3 nanoparticles: retention of strong luminescence and potential as biolabels. Journal of Fluorescence, 15 (4), P. 543–551 (2005).D.Y. Kong, Z.L. Wang, C.K. Lin, Z.W. Quan. Bio-functionalization of CeF3:Tb3+ nanoparticles. Nanotech nology, 18 (7), Article ID 075601 (2007).D.Y. Kong, Z.L. Wang, C.K. Lin, Z.W. Quan. Bio-functionalization of CeF3:Tb3+ nanoparticles. Nanotech nology, 18 (7), Article ID 075601 (2007).M. Bralic, N. Radic, S. Brinic, E. Generalic. Fluoride electrode with LaF3-membrane and simple disjoining solid state internal contact. Talanta, 55 (3), P. 581–586 (2001).M. Bralic, N. Radic, S. Brinic, E. Generalic. Fluoride electrode with LaF3-membrane and simple disjoining solid state internal contact. Talanta, 55 (3), P. 581–586 (2001).N. Miura, J. Hisamoto, et al. Solid-state oxygen sensor using sputtered LaF3 film. Sensors and Actuators, 16 (4), P. 301–310 (2001).N. Miura, J. Hisamoto, et al. Solid-state oxygen sensor using sputtered LaF3 film. Sensors and Actuators, 16 (4), P. 301–310 (2001).O.V. Kudryavtseva, L.S. Garashina, K.K. Rivkina, B.P. Sobolev. Solubility of LnF3 in lanthanum fluoride. Soviet Physics-Crystallography, 18 (2), P. 531–536 (1974).O.V. Kudryavtseva, L.S. Garashina, K.K. Rivkina, B.P. Sobolev. Solubility of LnF3 in lanthanum fluoride. Soviet Physics-Crystallography, 18 (2), P. 531–536 (1974).H.R. Zheng, X.J. Wang, et al. Up-converted emission in Pr3+ doped fluoride nanocrystals-based oxyfluoride glass ceramics. Journal of Luminescence, 108 (14), P. 395–399 (2004).H.R. Zheng, X.J. Wang, et al. Up-converted emission in Pr3+ doped fluoride nanocrystals-based oxyfluoride glass ceramics. Journal of Luminescence, 108 (14), P. 395–399 (2004).X.J. Wang, S.H. Huang, R. Reeves. Studies of the spectroscopic properties of Pr3+ doped LaF3 nanocrys tals/glass. Journal of Luminescence, 94, P. 229–233 (2001).X.J. Wang, S.H. Huang, R. Reeves. Studies of the spectroscopic properties of Pr3+ doped LaF3 nanocrys tals/glass. Journal of Luminescence, 94, P. 229–233 (2001).S. Tanabe, H. Hayashi, T. Hanada, N. Onodera. Fluorescence properties of Er3+ ions in glass ceramics containing LaF3 nanocrystals. Optical Materials, 19 (3), P. 343–349 (2002).S. Tanabe, H. Hayashi, T. Hanada, N. Onodera. Fluorescence properties of Er3+ ions in glass ceramics containing LaF3 nanocrystals. Optical Materials, 19 (3), P. 343–349 (2002).M.J. Dejneka. The luminescence and structure of novel transparent oxyfluoride glass-ceramics. Journal of Non- Crystalline Solids, 239 (1), P. 149–155 (1998).M.J. Dejneka. The luminescence and structure of novel transparent oxyfluoride glass-ceramics. Journal of Non- Crystalline Solids, 239 (1), P. 149–155 (1998).S. Fujihara, C. Mochizuki, T. Kimura. Formation of LaF3 microcrystals in sol-gel silica. Journal of Non Crystalline Solids, 244 (2), P. 267–274 (1999).S. Fujihara, C. Mochizuki, T. Kimura. Formation of LaF3 microcrystals in sol-gel silica. Journal of Non Crystalline Solids, 244 (2), P. 267–274 (1999).B.S. Zhuchkov, V.P. Tolstoy, I.V. Murin. Synthesis of ScF3, LaF3 nanolayers and nLaF3-mScF3 multinanolay ers at the surface of silicon by successive ionic layer deposition method. Solid State Ionics, 101 (1), P. 165–170 (1997).B.S. Zhuchkov, V.P. Tolstoy, I.V. Murin. Synthesis of ScF3, LaF3 nanolayers and nLaF3-mScF3 multinanolay ers at the surface of silicon by successive ionic layer deposition method. Solid State Ionics, 101 (1), P. 165–170 (1997).J.F. Zhou, Z.S. Wu, et al. Study on an antiwear and extreme pressure additive of surface coated LaF3 nanoparticles in liquid paraffin. Wear, 249 (6), P. 333–337 (2001).J.F. Zhou, Z.S. Wu, et al. Study on an antiwear and extreme pressure additive of surface coated LaF3 nanoparticles in liquid paraffin. Wear, 249 (6), P. 333–337 (2001).D.B. Pi, F. Wang et al. Luminescence behavior of Eu3+ doped LaF3 nanoparticles. Spectrochimica Acta A, 61 (11), P. 2455–2459 (2005).D.B. Pi, F. Wang et al. Luminescence behavior of Eu3+ doped LaF3 nanoparticles. Spectrochimica Acta A, 61 (11), P. 2455–2459 (2005).J.W. Stouwdam, G.A. Hebbink, et al. Lanthanide-doped nanoparticles with excellent luminescent properties in organic media. Chemistry of Materials, 15 (24), P. 4604–4616 (2003).J.W. Stouwdam, G.A. Hebbink, et al. Lanthanide-doped nanoparticles with excellent luminescent properties in organic media. Chemistry of Materials, 15 (24), P. 4604–4616 (2003).J.X. Meng, M.F. Zhang, Y.L. Liu. Hydrothermal preparation and luminescence of LaF3:Eu3+ nanoparticles. Spectrochimica Acta A, 66 (1), P. 81–85 (2007).J.X. Meng, M.F. Zhang, Y.L. Liu. Hydrothermal preparation and luminescence of LaF3:Eu3+ nanoparticles. Spectrochimica Acta A, 66 (1), P. 81–85 (2007).W.T. Carnall, G.L. Goodman, K. Rajnak, R.S. Rana. A systematic analysis of the spectra of the lanthanides doped into single crystal LaF3. The Journal of Chemical Physics, 90 (7), P. 3443–3457 (1989).W.T. Carnall, G.L. Goodman, K. Rajnak, R.S. Rana. A systematic analysis of the spectra of the lanthanides doped into single crystal LaF3. The Journal of Chemical Physics, 90 (7), P. 3443–3457 (1989).Y.F. Liu, W. Chen, et al. X-ray luminescence of LaF3:Tb3+ and LaF3:Ce3+, Tb3+ water-soluble nanoparticles. Journal of Applied Physics, 103 (6), Article ID 063105 (2008).Y.F. Liu, W. Chen, et al. X-ray luminescence of LaF3:Tb3+ and LaF3:Ce3+, Tb3+ water-soluble nanoparticles. Journal of Applied Physics, 103 (6), Article ID 063105 (2008).F. Wang, Y. Zhang, X. Fan, M. Wang. Facile synthesis of water-soluble LaF3:Ln3+ nanocrystals. Journal of Materials Chemistry, 16 (11), P. 1031–1034 (2006).F. Wang, Y. Zhang, X. Fan, M. Wang. Facile synthesis of water-soluble LaF3:Ln3+ nanocrystals. Journal of Materials Chemistry, 16 (11), P. 1031–1034 (2006).J. Wang, J. Hu, et al. Oleic acid (OA)-modified LaF3: Er,Yb nanocrystals and their polymer hybrid materials for potential optical-amplificationapplications. Journal of Materials Chemistry, 17 (16), P. 1597–1601 (2007).J. Wang, J. Hu, et al. Oleic acid (OA)-modified LaF3: Er,Yb nanocrystals and their polymer hybrid materials for potential optical-amplificationapplications. Journal of Materials Chemistry, 17 (16), P. 1597–1601 (2007).X. Wang, J. Zhuang, Q. Peng, Y. Li. Hydrothermal synthesis of rare-earth fluoride nanocrystals. Inorganic Chemistry, 45 (17), P. 6661–6665 (2006).X. Wang, J. Zhuang, Q. Peng, Y. Li. Hydrothermal synthesis of rare-earth fluoride nanocrystals. Inorganic Chemistry, 45 (17), P. 6661–6665 (2006).H. Guo, T. Zhang, et al. Ionic liquid based approach to monodisperse luminescent LaF3:Ce,Tb nanodiskettes: synthesis, structural and photoluminescent properties. Journal of Nanoscience and Nanotechnology, 10 (3), P. 1913–1919 (2010).H. Guo, T. Zhang, et al. Ionic liquid based approach to monodisperse luminescent LaF3:Ce,Tb nanodiskettes: synthesis, structural and photoluminescent properties. Journal of Nanoscience and Nanotechnology, 10 (3), P. 1913–1919 (2010).W.Y. Feng, T.Y. Wen, et al. Synthesis of LaF3 superfine powder by microwave heating method. Trans. Nonferrous Met. Soc. China, 14 (4), P.738–741 (2004).W.Y. Feng, T.Y. Wen, et al. Synthesis of LaF3 superfine powder by microwave heating method. Trans. Nonferrous Met. Soc. China, 14 (4), P.738–741 (2004).P.J. Thistlethwaite, M.S. Hook. Diffuse reflectance fourier transform infrared study of the adsorption of oleate/oleic acid onto titania. Langmuir, 16 (11), P.4993–4998 (2000).P.J. Thistlethwaite, M.S. Hook. Diffuse reflectance fourier transform infrared study of the adsorption of oleate/oleic acid onto titania. Langmuir, 16 (11), P.4993–4998 (2000).P.J. Thistlethwaite, M.L. Gee, D. Wilson. Diffuse reflectance infrared fourier transform spectroscopic studies of the adsorption of oleate/oleic acid onto zirconia, Langmuir, 12 (26), P. 6487–6491 (1996).P.J. Thistlethwaite, M.L. Gee, D. Wilson. Diffuse reflectance infrared fourier transform spectroscopic studies of the adsorption of oleate/oleic acid onto zirconia, Langmuir, 12 (26), P. 6487–6491 (1996).S.K. Kurtz, T.T. Perry. A powder technique for the evaluation of nonlinear optical materials. Journal of Applied Physics, 39 (8), P. 3798–3813 (1968)S.K. Kurtz, T.T. Perry. A powder technique for the evaluation of nonlinear optical materials. Journal of Applied Physics, 39 (8), P. 3798–3813 (1968)

The authors declare that there are no conflicts of interest present.