SYNTHESIS AND PHOTOLUMINESCENCE PROPERTIES OF ELLIPSOIDAL La2O2SO4:Eu3+ PHOSPHORS
Keywords:
lanthanium oxysulfate, ellipsoidal morphology, homogeneous precipitation reaction, photoluminescence
Abstract
This research was focused on the homogeneous precipitation synthesis of a series of Eu3+ ion-activated ellipsoidal La2O2SO4 phosphors based on the La2(SO4)3-CO(NH2)2 reaction system. The structural identification, thermal analysis, morphology and luminescence properties of the as-prepared products were characterized with Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), thermogravimetry and differential scanning calorimetry (TG/DSC), field emission scanning electron microscopy (FESEM) and photoluminescence (PL) spectra. Pure La2O2SO4 ellipsoidal particles with a long radius of about 2 µm and a short radius of about 1 µm were successfully prepared by calcining a rhombus-like precursor at 800 °C for 2 h in air. The formation mechanism of the precursor and its corresponding calcination product were also proposed. Photoluminescence results revealed that the strongest red emission peak was centered at 619 nm upon 249-nm ultraviolet (UV) light excitation in La2O2SO4:x%Eu3+ (x = 3, 6, 9, 12 and 15) phosphors. The exchange interaction was responsible for the concentration quenching mechanism of the 5D0→7F2 transition of Eu3+ ions in the La2O2SO4 host lattice. The optimal x value was 15 and the corresponding decay process showed a single exponential decay behavior whose lifetime t and color correlation temperature (CCT) were calculated to be 2.112 ms and 2752 K, respectively.
References
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[2] S. Zhukov, A. Yatsenko, V. Chernyshev, Structural study of lanthanum oxysulfate (LaO)2SO4, Mater. Res. Bull., 32 (1997) 1, 43–50, doi:10.1016/S0025-5408(96)00159-6
[3] Q.W. Pan, D.D. Yang, S.L. Kang, J.R. Qiu, G.P. Dong, Regulating mid-infrared to visible fluorescence in monodispersed Er3+-doped La2O2S (La2O2SO4) nanocrystals by phase modulation, Sci. Rep., 6 (2016), 37141, doi:10.1038/srep37141
[4] M. Machida, K. Kawamura, K. Ito, K. Ikeue, Large-capacity oxygen storage by lanthanide oxysulfate/oxysulfide systems, Chem. Mater., 17 (2005) 6, 1487–1492, doi:10.1021/cm0479640
[5] M. Machida, T. Kawano, M. Eto, D.J. Zhang, K. Ikeue, Ln dependence of the large-capacity oxygen storage/release property of Ln oxysulfate/oxysulfide systems, Chem. Mater. 19 (2007) 4, 954–960, doi:10.1021/cm062625n
[6] W.Y. Zhang, Isabel. W. C. E. Arends, K. Djanashvili, Nanoparticles of lanthanide oxysulfate/oxysulfide for improved oxygen storage/release, Dalton Trans., 45 (2016) 36, 14019–14022, doi:10.1039/C6DT01667G
[7] M. Machida, K. Kawamura, K. Ito, Novel oxygen storage mechanism based on redox of sulfur in lanthanum oxysulfate/oxysulfide, Chem. Commun., 6 (2004), 662–663, doi:10.1039/B315839J
[8] P.V.M. Dixini, V.G. Celante, M.F.F. Lelis, M.B.J.G. Freitas, Recycling of the anode from spent Ni-MH batteries for synthesis of the lanthanide oxysulfifide/oxysulfate compounds used in an oxygen storage and release system, J. Power Sources, 260 (2014), 163–168, doi:10.1016/j.jpowsour.2014.03.006
[9] D.J. Zhang, F. Yoshioka, K. Ikeue, M. Machida, Synthesis and oxygen release/storage properties of Ce-substituted La-oxysulfates, (La1-xCex)2O2SO4, Chem. Mater., 20 (2008) 21, 6697–6703, doi:10.1021/cm801629b
[10] Y. Uneme, S. Tamura, N. Imanaka, Sulfur dioxide gas sensor based on Zr4+ and O2- ion conducting solid electrolytes with lanthanum oxysulfate as an auxiliary sensing electrode, Sensor. Actuat. B, 177 (2013) , 529–534, doi:10.1016/j.snb.2012.11.010
[11] S. Yamamoto, S. Tamura, N. Imanaka, New type of potassium ion conducting solid based on lanthanum oxysulfate, J. Alloy. Compd., 418 (2006), 226–229, doi:10.1016/j.jallcom.2005.10.064
[12] J.D. Lessard, I. Valsamakis, M. Flytzani-Stephanopoulos, Novel Au/La2O3 and Au/La2O2SO4 catalysts for the water–gas shift reaction prepared via an anion adsorption method, Chem. Commun., 40 (2012), 4857–4859, doi:10.1039/C2CC31105D
[13] M. Shoji, K. Sakurai, A versatile scheme for preparing single-phase yttrium oxysulfate phosphor, J. Alloy. Compd., 426 (2006) 1-2, 244-246, doi:10.1016/j.jallcom.2005.12.110
[14] A.M. Srivastava, A.A. Setlur, H.A. Comanzo, Y. Gao, M.E. Hannah, J.A. Hughes, U. Happek, Optical spectroscopy and thermal quenching of the Ce3+ luminescence in yttrium oxysulfate, Y2O2[SO4], Opt. Mater., 30 (2008) 10, 1499–1503, doi:10.1016/j.optmat.2007.09.003
[15] E. I. Sal’nikova, D. I. Kaliev, and P. O. Andreev, Kinetics of phase formation upon the treatment of La2(SO4)3 and La2O2SO4 in a hydrogen flow, Russ. J. Phys. Chem. A, 85 (2011) 12, 2121–2125, doi:10.1134/s0036024411120296
[16] Porcher, D.R. Svoronos, Preparation and optical properties of europium-activated rare earth oxysulfates, J. Solid State Chem., 46 (1983), 101–111, doi:10.1016/0022-4596(83)90130-5
[17] L.C. Machado, M.T. D’Orlando de Azeredo, H.P. Soares Correˆa, J. do Rosa´rio Matos, I.O. Mazali, Formation of oxysulfifide LnO2S2 and oxysulfate LnO2SO4 phases in the thermal decomposition process of lanthanide sulfonates (Ln=La, Sm) J. Therm. Anal. Calorim. 107 (2012) , 305–311, doi:10.1007/s10973-011-1451-7
[18] R. V. Rodrigues, L. C. Machado, J. R. Matos, E. J. B. Muri, A. A. L. Marins, H. F. Brito, C.A.C. Passos, Oxysulfate/oxysulfifide of Tb3+ obtained by thermal decomposition of terbium sulfate hydrates under different atmospheres, J Therm. Anal. Calorim., 122 (2015), 765–773, doi:10.1007/s10973-015-4786-7
[19] K. Ikeue, T. Kawano, M. Eto, D.J. Zhang, M. Machida, X-ray structural study on the different redox behavior of La and Pr oxysulfates/oxysulfifides, J. Alloy. Compd., 451 (2008) 1-2, 338–340, doi:10.1016/j.jallcom.2007.04.145
[20] X.J. Wang, J.G. Li, M.S. Molokeev, X.J. Wang, W.G. Liu, Q. Zhu, H. Tanaka, K. Suzuta, B.N. Kim, Y. Sakka, Hydrothermal crystallization of a Ln2(OH)4SO4·nH2O layered compound for a wide range of Ln (Ln=La–Dy), thermolysis, and facile transformation into oxysulfate and oxysulfide phosphors, RSC Adv., 7 (2017), 13331–13339, doi:10.1039/C7RA00645D
[21] X.H. Liu, D. Zhang, J.H. Jiang, N. Zhang, R.Z. Ma, H.B. Zeng, B.P. Jia, S.B. Zhang, G.Z. Qiu, General synthetic strategy for high-yield and uniform rare-earth oxysulfate (RE2O2SO4, RE=La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Y, Ho, and Yb) hollow spheres, RSC Adv., 2 (2012), 9362–9365, doi:10.1039/C2RA21007J
[22] F.S. Chen, G. Chen, T. Liu, N. Zhang, X.H. Liu, H.M. Luo, J.H. Li, L.M. Chen, R.Z. Ma, G.Z. Qiu, Controllable fabrication and optical properties of uniform gadolinium oxysulfate hollow spheres, Sci. Rep., 5 (2015), 17934, doi:10.1038/srep17934
[23] G. Chen, F.S. Chen, X.H. Liu, W. Ma, H.M. Luo, J.H. Li, R.Z. Ma, G.Z. Qiu, Hollow spherical rare-earth-doped yttrium oxysulfate: A novel structure for upconversion, Nano Res., 7 (2014) 8, 1093–1102, doi:10.1007/s12274-014-0472-5
[24] W.J. Bian, M. Zhou, G. Chen, X. Yu, M. Pokhrel, Y.B. Mao, H.M. Luo, Upconversion luminescence of ytterbium and erbium co-doped gadolinium oxysulfate hollow nanoparticles, Appl. Mater. Today, 13 (2018), 381–386, doi:10.1016/j.apmt.2018.11.006
[25] X.Z. Huang, Z. Liu, Y.Y. Yang, Y. Tian, Salt syntheis of La2O2SO4 nanosheets and theri luminescent properties with Eu3+ doping, Func. Mater. Lett., 6 (2013) 2, 1350019, doi:10.1142/S1793604713500197
[26] M. Yang, H.Y. Shi, L.W. Ma, Q.Y. Gui, J.L. Ma, M.M. Lin, A. Sunna, WJ. Zhang, L.M. Dai, J. Qu, Y. Liu, Multifunctional luminescent nanofibres from Eu3+-doped La2O2SO4 with enhanced oxygen storage capability, J. Alloy. Compd., 695 (2017), 202–207, doi:10.1016/j.jallcom.2016.10.164
[27] L.H. Lee, Applications of the hard-soft acid-base (HSAB) principle to solid adhesion and surface tribointeractions, Progr. Colloid Polym. Sci., 82 (1990), 337–344, doi:10.1007/BFb0118276
[28] D.Y. Liu, S. Ren, G.S. Wang, L.S. Wen, J. Yu, Rapid synthesis and morphology control of nickel powders via a microwave-assisted chemical reduction method J. Mater. Sci., 44 (2009) 1, 108–113, doi:10.1007/s10853-008-3116-x
[29] Q.L. Dai, H.W. Song, M.Y. Wang, X. Bai, B. Dong, R.F. Qin, X.S. Qu, H. Zhang, Size and concentration effects on the photoluminescence of La2O2S:Eu3+ nanocrystals, J. Phys. Chem. C., 112 (2008) 49, 19399–19404, doi:10.1021/jp808343f
[30] B. Zhang, H. Zou, H. Guan, Y. Dai, Y. Song, X. Zhou, Y. Sheng, Lu2O2S: Tb3+, Eu3+ nanorods: Luminescence, energy transfer, and multicolour tunable emission, CrystEngComm., 18 (2016) ,7620–7628, doi:10.1039/C6CE01441K
Published
2022-12-08
How to Cite
1.
Li X, GaoL, Lian J. SYNTHESIS AND PHOTOLUMINESCENCE PROPERTIES OF ELLIPSOIDAL La2O2SO4:Eu3+ PHOSPHORS. MatTech [Internet]. 2022Dec.8 [cited 2025Dec.15];56(6):669–676. Available from: https://mater-tehnol.si/index.php/MatTech/article/view/634
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