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Zou Z, Guo T, Gong G, Lin F, Sun Y, Huang J, Liao J, Wen H. Site regulation and luminescence properties of Eu 3+, Eu 2+ in (La, Mg):SrAl 12O 19 matrix. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 302:123053. [PMID: 37393668 DOI: 10.1016/j.saa.2023.123053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 06/16/2023] [Accepted: 06/18/2023] [Indexed: 07/04/2023]
Abstract
The partially and equivalent substitution of La + Mg → Sr + Al in SrAl12O19 lattice is an effective strategy to provide trivalent sites, reduce the site occupation splitting of Al and stabilize the entire lattice. When excited by 397 nm, the Eu3+ activated La, Mg:SrAl12O19 (ASL) phosphor shows intense linear emission through the 5D0→7F4 transition at 707 nm when compared with SrAl12O19:Eu3+. Especially, the Eu, Mg co-doped Sr1-xLaxMgxAl12-xO19 with certain amount of x = 1/3 exhibits the significant intense photoluminescence, which was demonstrated through a lattice evolutional model. Eu2+ in the host with 1/3 ratio of (La, Mg) substitution shows broad blue emission and as short fluorescence lifetime as 248 ns. The temperature-depended fluorescence quenching behavior confirms the essence of strong electric-phonon coupling originated from distorted and polarized crystal field around Eu2+/Sr2+ site. Basing on site regulation of SrAl12O19 matrix, our study provides a reference for exploration on efficient rare earth ions activated luminescent laser or scintillation materials.
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Affiliation(s)
- Zhenggang Zou
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China; National Rare Earth Functional Material Innovation Center, Ganzhou 341100, China
| | - Tingting Guo
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Guoliang Gong
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China; National Rare Earth Functional Material Innovation Center, Ganzhou 341100, China; College of Rare Earths, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Fulin Lin
- Xiamen Institute of Rare Earth Materials, Haixi Institute, Chinese Academy of Sciences, Xiamen 361021, China
| | - Yijian Sun
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China; National Rare Earth Functional Material Innovation Center, Ganzhou 341100, China; College of Rare Earths, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Jianhui Huang
- National Rare Earth Functional Material Innovation Center, Ganzhou 341100, China; College of Rare Earths, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Jinsheng Liao
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Herui Wen
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China; National Rare Earth Functional Material Innovation Center, Ganzhou 341100, China
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2
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Denisenko YG, Molokeev MS, Jiang X, Sedykh AE, Aleksandrovsky AS, Oreshonkov AS, Roginskii EM, Zhernakov MA, Heuler D, Seuffert M, Lin Z, Andreev OV, Müller-Buschbaum K. Negative Thermal Expansion in the Polymorphic Modification of Double Sulfate β-AEu(SO 4) 2 (A-Rb +, Cs +). Inorg Chem 2023. [PMID: 37490422 DOI: 10.1021/acs.inorgchem.3c01624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2023]
Abstract
New polymorphic modifications of double sulfates β-AEu(SO4)2 (A-Rb+, Cs+) were obtained by the hydrothermal method, the structure of which differs significantly from the monoclinic modifications obtained earlier by solid-state methods. According to single-crystal diffraction data, it was found that the compounds crystallize in the orthorhombic system, space group Pnna, with parameters β-RbEu(SO4)2: a = 9.4667(4) Å, b = 13.0786(5) Å, c = 5.3760(2) Å, V = 665.61(5) Å3; β-CsEu(SO4)2: a = 9.5278(5) Å, b = 13.8385(7) Å, c = 5.3783(3) Å, V = 709.13(7) Å3. The asymmetric part of the unit cell contains one-half Rb+/Cs+ ion, one-half Eu3+ ion, both in special sites, and one SO42- ion. Both compounds exhibit nonlinear negative thermal expansion. According to the X-ray structural analysis and theoretical calculations, the polarizing effect of the alkali metal ion has a decisive influence on the demonstration of this phenomenon. Experimental indirect band gaps of β-Rb and β-Cs are 4.05 and 4.11 eV, respectively, while the direct band gaps are 4.48 and 4.54 eV, respectively. The best agreement with theoretical calculations is obtained using the ABINIT package employing PAW pseudopotentials with hybrid PBE0 functional, while norm-conserving pseudopotentials used in the frame of CASTEP code and LCAO approach in the Crystal package gave worse agreement. The properties of alkali ions also significantly affect the luminescent properties of the compounds, which leads to a strong temperature dependence of the intensity of the 5D0 → 7F4 transition in β-CsEu(SO4)2 in contrast to much weaker dependence of this kind in β-RbEu(SO4)2.
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Affiliation(s)
- Yuriy G Denisenko
- Institute of Inorganic and Analytical Chemistry, Justus-Liebig-University Gießen, Heinrich-Buff-Ring 17, Gießen 35392, Germany
- Regional Center ″New Generation″, Physics and Mathematics School of the Tyumen Region, Tyumen 625051, Russia
- Department of Science and Innovation, Tyumen State University, Tyumen 625003, Russia
| | - Maxim S Molokeev
- Laboratory of Crystal Physics, Kirensky Institute of Physics Federal Research Center KSC SB RAS, Krasnoyarsk 660036, Russia
- Department of Engineering Physics and Radioelectronic, Siberian Federal University, Krasnoyarsk 660041, Russia
- Department of Physics, Far Eastern State Transport University, Khabarovsk 680021, Russia
| | - Xingxing Jiang
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Alexander E Sedykh
- Institute of Inorganic and Analytical Chemistry, Justus-Liebig-University Gießen, Heinrich-Buff-Ring 17, Gießen 35392, Germany
| | - Aleksandr S Aleksandrovsky
- Laboratory of Coherent Optics, Kirensky Institute of Physics Federal Research Center KSC SB RAS, Krasnoyarsk 660036, Russia
- Institute of Nanotechnology, Spectroscopy and Quantum Chemistry, Siberian Federal University, Krasnoyarsk 660041, Russia
| | - Aleksandr S Oreshonkov
- Laboratory of Molecular Spectroscopy, Kirensky Institute of Physics Federal Research Center KSC SB RAS, Krasnoyarsk 660036, Russia
- School of Engineering and Construction, Siberian Federal University, Krasnoyarsk 660041, Russia
| | - Evgenii M Roginskii
- Solid State Spectroscopy Department, Ioffe Institute, St. Petersburg 194021, Russia
| | - Maksim A Zhernakov
- Institute of Inorganic and Analytical Chemistry, Justus-Liebig-University Gießen, Heinrich-Buff-Ring 17, Gießen 35392, Germany
- Chemistry Institute, Kazan Federal University, Kazan 420008, Russia
| | - Dominik Heuler
- Institute of Inorganic and Analytical Chemistry, Justus-Liebig-University Gießen, Heinrich-Buff-Ring 17, Gießen 35392, Germany
| | - Marcel Seuffert
- Institute of Inorganic and Analytical Chemistry, Justus-Liebig-University Gießen, Heinrich-Buff-Ring 17, Gießen 35392, Germany
| | - Zheshuai Lin
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Oleg V Andreev
- Department of Inorganic and Physical Chemistry, Tyumen State University, Tyumen 625003, Russia
- Laboratory of the Chemistry of Rare Earth Compounds, Institute of Solid State Chemistry, UB RAS, Yekaterinburg 620137, Russia
| | - Klaus Müller-Buschbaum
- Institute of Inorganic and Analytical Chemistry, Justus-Liebig-University Gießen, Heinrich-Buff-Ring 17, Gießen 35392, Germany
- Center for Materials Research (LaMa), Justus-Liebig-University of Giessen, Gießen 35392, Germany
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3
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Gaikwad SK, Kharat SP, Haritha K, Kolekar YD, Ramana CV. Effect of Dy 3+ and Tb 3+ Rare-Earth Cation Co-Substitution on the Structure, Magnetic, and Magnetostrictive Properties of Ni-Co-Ferrites. Inorg Chem 2023. [PMID: 37450403 DOI: 10.1021/acs.inorgchem.3c01117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/18/2023]
Abstract
The design and development of electromagnetic and magnetoelectric materials with enhanced properties and performance are desirable for numerous technologies, which are based on integrated electromagnetic materials and components. Nevertheless, engineering the crystalline materials with multi-complex chemistry and multiple cations is challenging. In this context, herein, we report on the effect of rare-earth (RE) cations, namely, Dy3+ and Tb3+, co-substituted into the Co-Ni-mixed ferrite materials for applications in stress/torque sensors. The RE-cations that co-substituted Co-Ni-ferrite materials with a composition of Ni0.8Co0.2Fe2-x(Dy1-yTby)xO4 (x = 0-0.1, y = 0.3; NCFDT) were prepared by the high-temperature solid-state chemical reaction method. The effect of variable composition (x) on the structure, morphology, chemical bonding, and magnetic properties of NCFDT materials is investigated in detail, and the structure-property optimization enabled realizing magnetostrictive NCFDT for sensor applications. X-ray diffraction analysis coupled with Rietveld refinement confirms the face-centered cubic crystal structure. Chemical bonding analysis made using Raman spectroscopic and Fourier transform infrared spectroscopic measurements validates the active modes corresponding to the spinel ferrite structure. The effect of Dy3+ and Tb3+ substitution is primarily seen in the grain size (range of 5-15 μm), as evident from the scanning electron microscopy patterns. Energy-dispersive spectroscopy confirms the presence of all constituent elements with expected composition and without any impurities. The magnetic property measurements indicate that the remnant magnetization (Mr) increases from 0.06 to 0.17 μB/f.u. with the rare-earth (Dy and Tb) substitution and has achieved the maximum squareness ratio (Mr/Ms) = 0.097 at x = 0.10. To validate their application potential in magneto-mechanical sensors, we have measured the magnetostriction coefficients (λ11 and λ12), which demonstrate high values of λ11 = -92 ppm (along the parallel direction) and λ12 = 66 ppm (along the perpendicular direction) for NCFDT with x = 0.05 at H = 7000 Oe. In addition, the maximum value of strain sensitivity is observed, particularly dλ11dH = -0.764 nm/A whereas dλ12dH = 0.361 nm/A. The correlation between strain sensitivity (dλ/dH) and susceptibility (dM/dH), as derived from magnetostriction and magnetization measurements, respectively, is established. The outcomes of this study indicate that Ni-Co-ferrites with Dy3+ and Tb3+ substitution are suitable for stress/torque sensors. These NCFDT ferrites may also be useful as a necessary constitutive phase for the manufacture of magnetoelectric composite materials, making them appropriate for magnetic field sensors and energy harvesting applications.
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Affiliation(s)
- Swati K Gaikwad
- Department of Physics, Savitribai Phule Pune University, Pune 411007, Maharashtra, India
- Department of Physics, Fergusson College (Autonomous), Pune 411004, Maharashtra, India
| | - Shahaji P Kharat
- Department of Physics, Savitribai Phule Pune University, Pune 411007, Maharashtra, India
- Department of Physics, Fergusson College (Autonomous), Pune 411004, Maharashtra, India
| | - Keerthi Haritha
- Environmental Science and Engineering, University of Texas at El Paso, 500 W. University Ave., El Paso, Texas 79968, United States
| | - Yesh D Kolekar
- Department of Physics, Savitribai Phule Pune University, Pune 411007, Maharashtra, India
| | - C V Ramana
- Centre for Advanced Materials Research (CMR), University of Texas at El Paso, El Paso, Texas 79968, United States
- Department of Aerospace & Mechanical Engineering, University of Texas at El Paso, El Paso, Texas 79968, United States
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Shtykova M, Vorob'eva V, Fedorov P, Molokeev M, Aleksandrovsky A, Elyshev A, Palamarchuk I, Yurev I, Ivanov A, Habibullayev N, Abulkhaev M, Andreev O. Features of phase equilibria and properties of phases in the Sb-Sm-Se system. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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5
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Culeac IP, Verlan VI, Bordian OT, Zubareva VE, Iovu MS, Bulhac II, Siminel NA, Siminel AV, Mihai G, Enachescu M. Synthesis and Characterization of Coordination Compound [Eu(µ 2-OC 2H 5)(btfa)(NO 3)(phen)] 2phen with High Luminescence Efficiency. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:2788. [PMID: 36014653 PMCID: PMC9415948 DOI: 10.3390/nano12162788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 08/10/2022] [Accepted: 08/10/2022] [Indexed: 06/15/2023]
Abstract
A high-luminescent, blue-light excitable europium(III) coordination complex, [Eu(µ2-OC2H5)(btfa)(NO3)(phen)]2phen (1) {btfa = benzoyl trifluoroacetone, phen = 1,10-phenantroline}, has been synthesized and investigated. The complex was characterized by infrared (IR) and photoluminescence (PL) spectroscopy. The PL emission spectra of powder samples registered in a range of 10.7-300 K exhibit characteristic metal-centered luminescence bands, assigned to internal radiative transitions of the Eu3+ ion, 5D1→7Fj and 5D0→7Fj (j = 0-4). The high-resolution spectrum of the transition 5D0→7F0 shows that it consists of two narrow components, separated by 0.96 meV, which indicates the presence in the matrix of two different sites of the Eu3+ ion. The splitting pattern of 5D0→7Fj (j = 0-4) transitions indicates that europium ions are located in a low-symmetry environment. The absolute quantum yield and the sensitization efficiency were determined to be 49.2% and 89.3%, respectively. The complex can be excited with low-cost lasers at around 405 nm and is attractive for potential applications in optoelectronics and biochemistry.
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Affiliation(s)
- Ion P. Culeac
- Institute of Applied Physics, MD-2028 Chisinau, Moldova
| | | | | | | | | | | | | | | | - Geanina Mihai
- Center for Surface Science and Nanotechnology, University Politehnica of Bucharest, 060042 Bucharest, Romania
- S.C. NanoPRO START MC S.R.L., 110310 Pitesti, Romania
| | - Marius Enachescu
- Center for Surface Science and Nanotechnology, University Politehnica of Bucharest, 060042 Bucharest, Romania
- Academy of Romanian Scientists, 550044 Bucharest, Romania
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6
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Zhou L, Chen Y, Shen Y, Lin J, Fu J, Lei L, Ye R, Deng D, Xu S. Designing Optical Thermometers Using Down/Upconversion Ca 14Al 10Zn 6O 35: Ti 4+, Eu 3+/Yb 3+, Er 3+ Thermosensitive Phosphors. Inorg Chem 2022; 61:10667-10677. [PMID: 35793498 DOI: 10.1021/acs.inorgchem.2c00769] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Down/upconversion Ca14Al10Zn6O35 inorganic phosphors codoped with Ti4+/Eu3+ or Yb3+/Er3+ were prepared. The crystal structure and downconversion luminescence properties of Ca14Al10Zn6O35:Ti4+, Eu3+ phosphors were studied in detail. Ti4+ and Eu3+ occupied Al3+ and Ca2+ sites in the host lattice, respectively. Under the excitation of 273 nm, the emission peak in the 300-570 nm band originated from the 2T2 → O2- transition of Ti4+. The f-f transition of Eu3+ ions generated multiple peaks in the 570-800 nm range. The emission intensity of Ti4+ and Eu3+ ions can be used as a fluorescence intensity ratio (FIR) signal. Based on the FIR technology, the maximum relative sensitivity (Sr) and the minimum temperature uncertainty (δT) reached 1.41% K-1 and 0.07 K, respectively. Meanwhile, the temperature-sensing behaviors were explored by the temperature-dependent upconversion spectra of Er3+- and Yb3+-codoped Ca14Al10Zn6O35 phosphors. Based on the fluorescence intensity ratio of thermal coupling levels (Er3+:2H11/2/4S3/2), the maximum Sr and minimum δT of upconversion phosphors reached 1.28% K-1 and 0.08 K in the temperature range of 293-473 K, respectively. Ca14Al10Zn6O35:Ti4+/Eu3+ (Yb3+/Er3+) phosphors realize temperature sensors with higher relative sensitivity, and it is a good candidate material for optical temperature measurement.
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Affiliation(s)
- Liuyan Zhou
- College of Materials and Chemistry, China Jiliang University, Hangzhou 310018, China
| | - Yanling Chen
- Key Laboratory of Rare Earth Optoelectronic Materials and Devices of Zhejiang Province, Institute of Optoelectronic Materials and Devices, China Jiliang University, Hangzhou 310018, China
| | - Yuyu Shen
- Key Laboratory of Rare Earth Optoelectronic Materials and Devices of Zhejiang Province, Institute of Optoelectronic Materials and Devices, China Jiliang University, Hangzhou 310018, China
| | - Jianhua Lin
- Key Laboratory of Rare Earth Optoelectronic Materials and Devices of Zhejiang Province, Institute of Optoelectronic Materials and Devices, China Jiliang University, Hangzhou 310018, China
| | - Jie Fu
- Key Laboratory of Rare Earth Optoelectronic Materials and Devices of Zhejiang Province, Institute of Optoelectronic Materials and Devices, China Jiliang University, Hangzhou 310018, China
| | - Lei Lei
- Key Laboratory of Rare Earth Optoelectronic Materials and Devices of Zhejiang Province, Institute of Optoelectronic Materials and Devices, China Jiliang University, Hangzhou 310018, China
| | - Renguang Ye
- Key Laboratory of Rare Earth Optoelectronic Materials and Devices of Zhejiang Province, Institute of Optoelectronic Materials and Devices, China Jiliang University, Hangzhou 310018, China
| | - Degang Deng
- Key Laboratory of Rare Earth Optoelectronic Materials and Devices of Zhejiang Province, Institute of Optoelectronic Materials and Devices, China Jiliang University, Hangzhou 310018, China
| | - Shiqing Xu
- Key Laboratory of Rare Earth Optoelectronic Materials and Devices of Zhejiang Province, Institute of Optoelectronic Materials and Devices, China Jiliang University, Hangzhou 310018, China
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7
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Denisenko YG, Atuchin VV, Molokeev MS, Sedykh AE, Khritokhin NA, Aleksandrovsky AS, Oreshonkov AS, Shestakov NP, Adichtchev SV, Pugachev AM, Sal’nikova EI, Andreev OV, Razumkova IA, Müller-Buschbaum K. Exploration of the Crystal Structure and Thermal and Spectroscopic Properties of Monoclinic Praseodymium Sulfate Pr 2(SO 4) 3. Molecules 2022; 27:3966. [PMID: 35807213 PMCID: PMC9267875 DOI: 10.3390/molecules27133966] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 06/15/2022] [Accepted: 06/17/2022] [Indexed: 02/01/2023] Open
Abstract
Praseodymium sulfate was obtained by the precipitation method and the crystal structure was determined by Rietveld analysis. Pr2(SO4)3 is crystallized in the monoclinic structure, space group C2/c, with cell parameters a = 21.6052 (4), b = 6.7237 (1) and c = 6.9777 (1) Å, β = 107.9148 (7)°, Z = 4, V = 964.48 (3) Å3 (T = 150 °C). The thermal expansion of Pr2(SO4)3 is strongly anisotropic. As was obtained by XRD measurements, all cell parameters are increased on heating. However, due to a strong increase of the monoclinic angle β, there is a direction of negative thermal expansion. In the argon atmosphere, Pr2(SO4)3 is stable in the temperature range of T = 30-870 °C. The kinetics of the thermal decomposition process of praseodymium sulfate octahydrate Pr2(SO4)3·8H2O was studied as well. The vibrational properties of Pr2(SO4)3 were examined by Raman and Fourier-transform infrared absorption spectroscopy methods. The band gap structure of Pr2(SO4)3 was evaluated by ab initio calculations, and it was found that the valence band top is dominated by the p electrons of oxygen ions, while the conduction band bottom is formed by the d electrons of Pr3+ ions. The exact position of ZPL is determined via PL and PLE spectra at 77 K to be at 481 nm, and that enabled a correct assignment of luminescent bands. The maximum luminescent band in Pr2(SO4)3 belongs to the 3P0 → 3F2 transition at 640 nm.
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Affiliation(s)
- Yuriy G. Denisenko
- Department of Inorganic and Physical Chemistry, Tyumen State University, 625003 Tyumen, Russia; (Y.G.D.); (N.A.K.); (E.I.S.); (O.V.A.); (I.A.R.)
- Department of General and Special Chemistry, Industrial University of Tyumen, 625000 Tyumen, Russia
- Institute of Inorganic and Analytical Chemistry, Justus-Liebig-University Giessen, 35392 Giessen, Germany; (A.E.S.); (K.M.-B.)
| | - Victor V. Atuchin
- Laboratory of Optical Materials and Structures, Institute of Semiconductor Physics, SB RAS, 630090 Novosibirsk, Russia
- Research and Development Department, Kemerovo State University, 650000 Kemerovo, Russia
- Department of Applied Physics, Novosibirsk State University, 630090 Novosibirsk, Russia
- Department of Industrial Machinery Design, Novosibirsk State Technical University, 630073 Novosibirsk, Russia
- R&D Center “Advanced Electronic Technologies”, Tomsk State University, Tomsk 634034, Russia
| | - Maxim S. Molokeev
- Laboratory of Crystal Physics, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 660036 Krasnoyarsk, Russia;
- School of Engineering Physics and Radio Electronics, Siberian Federal University, 660041 Krasnoyarsk, Russia
- Department of Physics, Far Eastern State Transport University, 680021 Khabarovsk, Russia
| | - Alexander E. Sedykh
- Institute of Inorganic and Analytical Chemistry, Justus-Liebig-University Giessen, 35392 Giessen, Germany; (A.E.S.); (K.M.-B.)
| | - Nikolay A. Khritokhin
- Department of Inorganic and Physical Chemistry, Tyumen State University, 625003 Tyumen, Russia; (Y.G.D.); (N.A.K.); (E.I.S.); (O.V.A.); (I.A.R.)
| | - Aleksandr S. Aleksandrovsky
- Laboratory of Coherent Optics, Kirensky Institute of Physics Federal Research Center KSC SB RAS, 660036 Krasnoyarsk, Russia;
- Institute of Nanotechnology, Spectroscopy and Quantum Chemistry, Siberian Federal University, 660041 Krasnoyarsk, Russia
| | - Aleksandr S. Oreshonkov
- Laboratory of Molecular Spectroscopy, Kirensky Institute of Physics Federal Research Center KSC SB RAS, 660036 Krasnoyarsk, Russia; (A.S.O.); (N.P.S.)
- School of Engineering and Construction, Siberian Federal University, 660041 Krasnoyarsk, Russia
| | - Nikolai P. Shestakov
- Laboratory of Molecular Spectroscopy, Kirensky Institute of Physics Federal Research Center KSC SB RAS, 660036 Krasnoyarsk, Russia; (A.S.O.); (N.P.S.)
| | - Sergey V. Adichtchev
- Institute of Automation and Electrometry, Russian Academy of Sciences, 630090 Novosibirsk, Russia; (S.V.A.); (A.M.P.)
| | - Alexey M. Pugachev
- Institute of Automation and Electrometry, Russian Academy of Sciences, 630090 Novosibirsk, Russia; (S.V.A.); (A.M.P.)
| | - Elena I. Sal’nikova
- Department of Inorganic and Physical Chemistry, Tyumen State University, 625003 Tyumen, Russia; (Y.G.D.); (N.A.K.); (E.I.S.); (O.V.A.); (I.A.R.)
- Research Department, Northern Trans-Ural Agricultural University, 625003 Tyumen, Russia
| | - Oleg V. Andreev
- Department of Inorganic and Physical Chemistry, Tyumen State University, 625003 Tyumen, Russia; (Y.G.D.); (N.A.K.); (E.I.S.); (O.V.A.); (I.A.R.)
| | - Illaria A. Razumkova
- Department of Inorganic and Physical Chemistry, Tyumen State University, 625003 Tyumen, Russia; (Y.G.D.); (N.A.K.); (E.I.S.); (O.V.A.); (I.A.R.)
| | - Klaus Müller-Buschbaum
- Institute of Inorganic and Analytical Chemistry, Justus-Liebig-University Giessen, 35392 Giessen, Germany; (A.E.S.); (K.M.-B.)
- Center for Materials Research (LaMa), Justus-Liebig-University Giessen, 35392 Giessen, Germany
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8
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Chen X, Bian R, Xiao W, Song X. A new rare-earth oxyborate Ba 3BiPbEuO(BO 3) 4 and the luminescence properties of the Ba 3BiPbY 1-xEu xO(BO 3) 4 phosphors. Dalton Trans 2022; 51:9454-9466. [PMID: 35678144 DOI: 10.1039/d2dt01063a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new rare-earth oxyborate Ba3BiPbEuO(BO3)4 was prepared, and its crystal structure was established by the single-crystal X-ray diffraction method with the following structural data: P63/mmc, a = 5.4305(1) Å, c = 26.3501(3) Å, V = 672.96(3) Å3 and Z = 2. This is a layered material containing two types of layers: one is formed by corner-sharing EuO6 octahedra and BO3 triangles and the other is composed of corner- or edge-sharing (Bi/Pb)O7 hexagonal pyramids and BO3 triangles. These layers and their equivalent partners are alternately stacked along the c-axis, with Ba2+ cations situated in between and within the layers. Furthermore, the phase composition, morphology, and IR, Raman, XPS, and UV-vis absorption spectra of this compound were studied. In addition, solid solutions of Ba3BiPbY1-xEuxO(BO3)4 (0 ≤ x ≤ 1) were prepared via the solid-state reaction method and their photoluminescence properties were investigated. Ba3BiPbYO(BO3)4 and Ba3BiPbEuO(BO3)4 showed blue and reddish-orange luminescence when excited at 242 and 394 nm, respectively. By doping Eu3+ into the Ba3BiPbYO(BO3)4 matrix and changing the Eu3+ doping concentration, luminescence color tunability from blue to orange-red was realized in Ba3BiPbY1-xEuxO(BO3)4 phosphors under excitation at 331 nm. This kind of material with color variability may have potential application in field-emission displays.
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Affiliation(s)
- Xuean Chen
- Faculty of Materials and Manufacturing, Key Laboratory of Advanced Functional Materials, Ministry of Education of China, Beijing University of Technology, 100124 Beijing, China.
| | - Ruru Bian
- Faculty of Materials and Manufacturing, Key Laboratory of Advanced Functional Materials, Ministry of Education of China, Beijing University of Technology, 100124 Beijing, China.
| | - Weiqiang Xiao
- Beijing Key Laboratory of Microstructure and Property of Solids, Beijing University of Technology, 100124 Beijing, China
| | - Xiaoyan Song
- Faculty of Materials and Manufacturing, Key Laboratory of Advanced Functional Materials, Ministry of Education of China, Beijing University of Technology, 100124 Beijing, China.
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9
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Huang S, Shang M, Yan Y, Dang P, Lin J. Regulation of Local Site Structures to Stabilize Mixed-Valence Eu 2+/3+ under a Reducing Atmosphere for Multicolor Photoluminescence. Inorg Chem 2022; 61:1756-1764. [PMID: 35005893 DOI: 10.1021/acs.inorgchem.1c03672] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Co-doping mixed-valence Eu2+/3+ in a single-phase phosphor is an efficient method to realize the emission color regulation, which holds great potential for anticounterfeiting and ratiometric temperature sensing. Here, the mixed-valence Eu-doped Sr1.95+xLi1-xSi1-xAlxO4F (0 ≤ x ≤ 0.25) phosphors were designed and prepared under a reducing atmosphere. The correlation of local phase structures and luminescence properties was discussed. Replacing Si4+-Li+ ion pairs with Al3+-Sr2+ ion pairs compresses the Sr sites occupied by Eu2+, and it stabilizes Eu3+ in a reducing atmosphere and leads to the coexistence of Eu2+ and Eu3+ in single-phase Sr1.95+xLi1-xSi1-xAlxO4F:0.05Eu (0 ≤ x ≤ 0.25) phosphors. Based on the wavelength-dependent luminescence color behaviors of Sr1.95+xLi1-xSi1-xAlxO4F:0.05Eu phosphors, the fluorescent anticounterfeit papers/patterns containing Sr1.95+xLi1-xSi1-xAlxO4F:0.05Eu phosphors were the same as ordinary paper under ambient conditions. However, the hidden colors or images can be read out with green-orange luminescence under 365/300 nm light excitation. Benefiting from the diverse thermal response emission behaviors of Eu2+ (530 nm) and Eu3+ (703 nm), Sr1.95+xLi1-xSi1-xAlxO4F:0.05Eu phosphors exhibit temperature sensing performances, with the maximum absolute and relative sensitivity being 0.0294 K-1 at 573 K and 0.83% K-1 at 348 K. More importantly, Sr1.95+xLi1-xSi1-xAlxO4F:0.05Eu phosphors showed excellent stability in humid, acid, and alkali environments, which contributed to applying mixed-valence Eu2+/3+-doped Sr1.95+xLi1-xSi1-xAlxO4F to the fields of multicolor anticounterfeiting and noncontact optical thermometry.
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Affiliation(s)
- Shuai Huang
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), School of Material Science and Engineering, Shandong University, Jinan 250061, P. R. China.,College of Materials Science and Engineering, Nanchang University, 999 Xuefu Road, Nanchang 330031, P. R. China
| | - Mengmeng Shang
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), School of Material Science and Engineering, Shandong University, Jinan 250061, P. R. China
| | - Yu Yan
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), School of Material Science and Engineering, Shandong University, Jinan 250061, P. R. China
| | - Peipei Dang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Jun Lin
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
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10
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Hebbar DN, Choudhari KS, Pathak N, Shivashankar S, Kulkarni SD. Microwave assisted Synthesis of ZnGa2-x-yEuxTbyO4 luminescent nanoparticles showing balanced white-light emission. NEW J CHEM 2022. [DOI: 10.1039/d1nj06047c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Phosphor-converted white-light-emitting diodes (pc-WLED) are technologically advanced next-generation lighting sources which will potentially substitute traditional lighting. Herein, we report microwave-assisted synthesis of single-phase, ZnGa2-x-yEuxTbyO4 nanophosphor in 10 min with high...
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11
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Pasechnik LA, Peshehonova AO, Lipina OА, Medyankina IS, Enyashin A, Chufarov AY, Tyutyunnik AP. Co-crystallization of red emitting (NH 4) 3Sc(SO 4) 3:Eu 3+ microfibers: structure-luminescence relationship for promising application in optical thermometry. CrystEngComm 2022. [DOI: 10.1039/d2ce00478j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
(NH4)3Sc(SO4)3:Eu3+ phosphor has been synthesized as rod-like microparticles by the crystallization from an aqueous solution. Its crystal structure belongs to monoclinic system, space group P21/c, Z = 4. An enantiotropic...
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12
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Ta S, Zhang H, Wu W, Wang Y, Zhang P, Cheng Z, Xu S, Goodman BA, Deng W. Luminescence properties of Eu 2O 3-doped ZrO 2–Y 2O 3 single crystals. CrystEngComm 2022. [DOI: 10.1039/d2ce01054b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The optical properties of the Eu3+-doped Y2O3-stabilized ZrO2 crystals demonstrate potential for various applications based on their intense emission of orange light.
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Affiliation(s)
- Shengdi Ta
- School of Physical Science and Technology, Guangxi University, 100 East Daxue Road, Nanning 530004, Guangxi, People's Republic of China
| | - Huiting Zhang
- School of Physical Science and Technology, Guangxi University, 100 East Daxue Road, Nanning 530004, Guangxi, People's Republic of China
| | - Wenxia Wu
- School of Physical Science and Technology, Guangxi University, 100 East Daxue Road, Nanning 530004, Guangxi, People's Republic of China
| | - Yazhao Wang
- School of Physical Science and Technology, Guangxi University, 100 East Daxue Road, Nanning 530004, Guangxi, People's Republic of China
| | - Peng Zhang
- School of Physical Science and Technology, Guangxi University, 100 East Daxue Road, Nanning 530004, Guangxi, People's Republic of China
| | - Zeyu Cheng
- School of Physical Science and Technology, Guangxi University, 100 East Daxue Road, Nanning 530004, Guangxi, People's Republic of China
| | - Shoulei Xu
- School of Physical Science and Technology, Guangxi University, 100 East Daxue Road, Nanning 530004, Guangxi, People's Republic of China
| | - Bernard Albert Goodman
- School of Physical Science and Technology, Guangxi University, 100 East Daxue Road, Nanning 530004, Guangxi, People's Republic of China
| | - Wen Deng
- School of Physical Science and Technology, Guangxi University, 100 East Daxue Road, Nanning 530004, Guangxi, People's Republic of China
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Wei D, Yang X, Liu Y, Seo HJ. Microstructural origin of peculiar spectra and excellent luminescence properties of Y 10Ta 4O 25:Eu 3+ with a fluorite-related structure. Inorg Chem Front 2022. [DOI: 10.1039/d2qi01620f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Y10Ta4O25:Eu3+ presents peculiar spectra and excellent red luminescence properties due to its special fluorite-related structure. The microstructure was characterized by the site-selective luminescence of Eu3+ activators.
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Affiliation(s)
- Donglei Wei
- School of Electronic and Information Engineering, Changshu Institute of Technology, Changshu, 215500, China
- Department of Physics, Pukyong National University, Busan 48513, Republic of Korea
| | - Xifeng Yang
- School of Electronic and Information Engineering, Changshu Institute of Technology, Changshu, 215500, China
| | - Yushen Liu
- School of Electronic and Information Engineering, Changshu Institute of Technology, Changshu, 215500, China
| | - Hyo Jin Seo
- Department of Physics, Pukyong National University, Busan 48513, Republic of Korea
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Gao Y, Qian H, Jiang P, Cong R, Yang T. Bi 3+ photoluminescence in Y 1-xBi xCa 3(GaO) 3(BO 3) 4 and energy transfer to Eu 3+ and Tb 3+ in co-doped phosphors. Dalton Trans 2021; 50:16660-16669. [PMID: 34755741 DOI: 10.1039/d1dt03100g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bi3+ possesses outer shell lone pair electrons, and, thus the so-involved photoluminescence (PL) is sensitive to the surrounding coordination. Besides, the similarity in the structural chemistry between Bi3+ and rare earth (RE) ions inspires us to investigate the Bi3+-PL performance in RE3+-containing hosts. Herein, Y1-xBixCa3(GaO)3(BO3)4 (0.01 ≤ x ≤ 0.15) compounds were prepared by a high temperature solid state reaction method. The successful cationic doping and phase purity were confirmed by powder X-ray diffraction analysis. This series of phosphors exhibit the very strong absorption of Bi3+ 1S0 → 3P1 at 272 nm along with the intense blue emission with a maximum at 399 nm and a full width at half maximum (FWHM) of 59 nm. They retained 78.86% of the emission intensity at 150 °C, with reference to that at room temperature. Moreover, Bi3+ could also behave as a sensitizer to enhance the emission efficiency of RE3+ and thus to realize color-tunable phosphors. The energy transfer was proved in the co-doped phosphors Y0.95-yBi0.05EuyCa3(GaO)3(BO3)4 (0.05 ≤ y ≤ 0.6) and Y0.95-zBi0.05TbzCa3(GaO)3(BO3)4 (0.05 ≤ z ≤ 0.6), and color-tunable emissions from blue to red, or from blue to green were realized in these two series of phosphors.
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Affiliation(s)
- Yan Gao
- College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, People's Republic of China.
| | - Huayu Qian
- College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, People's Republic of China.
| | - Pengfei Jiang
- College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, People's Republic of China.
| | - Rihong Cong
- College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, People's Republic of China.
| | - Tao Yang
- College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, People's Republic of China.
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15
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Denisenko YG, Sedykh AE, Basova SA, Atuchin VV, Molokeev MS, Aleksandrovsky AS, Krylov AS, Oreshonkov AS, Khritokhin NA, Sal'nikova EI, Andreev OV, Müller-Buschbaum K. Exploration of the structural, spectroscopic and thermal properties of double sulfate monohydrate NaSm(SO4)2·H2O and its thermal decomposition product NaSm(SO4)2. ADV POWDER TECHNOL 2021. [DOI: 10.1016/j.apt.2021.08.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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16
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Crystal Structure, Vibrational, Spectroscopic and Thermochemical Properties of Double Sulfate Crystalline Hydrate [CsEu(H2O)3(SO4)2]·H2O and Its Thermal Dehydration Product CsEu(SO4)2. CRYSTALS 2021. [DOI: 10.3390/cryst11091027] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Crystalline hydrate of double cesium europium sulfate [CsEu(H2O)3(SO4)2]·H2O was synthesized by the crystallization from an aqueous solution containing equimolar amounts of 1Cs+:1Eu3+:2SO42− ions. Anhydrous salt CsEu(SO4)2 was formed as a result of the thermal dehydration of the crystallohydrate. The unusual effects observed during the thermal dehydration were attributed to the specific coordination of water molecules in the [CsEu(H2O)3(SO4)2]·H2O structure. The crystal structure of [CsEu(H2O)3(SO4)2]·H2O was determined by a single crystal X-ray diffraction analysis, and the crystal structure of CsEu(SO4)2 was obtained by the Rietveld method. [CsEu(H2O)3(SO4)2]·H2O crystallizes in the monoclinic system, space group P21/c (a = 6.5574(1) Å, b = 19.0733(3) Å, c = 8.8364(2) Å, β = 93.931(1)°, V = 1102.58(3) Å3). The anhydrous sulfate CsEu(SO4)2 formed as a result of the thermal destruction crystallizes in the monoclinic system, space group C2/c (a = 14.327(1) Å, b = 5.3838(4) Å, c = 9.5104(6) Å, β = 101.979(3) °, V = 717.58(9) Å3). The vibration properties of the compounds are fully consistent with the structural models and are mainly determined by the deformation of non-rigid structural elements, such as H2O and SO42−. As shown by the diffused reflection spectra measurements and DFT calculations, the structural transformation from [CsEu(H2O)3(SO4)2]·H2O to CsEu(SO4)2 induced a significant band gap reduction. A noticeable difference of the luminescence spectra between cesium europium sulfate and cesium europium sulfate hydrate is detected and explained by the variation of the extent of local symmetry violation at the crystallographic sites occupied by Eu3+ ions, namely, by the increase in inversion asymmetry in [CsEu(H2O)3(SO4)2]·H2O and the increase in mirror asymmetry in CsEu(SO4)2. The chemical shift of the 5D0 energy level in cesium europium sulfate hydrate, with respect to cesium europium sulfate, is associated with the presence of H2O molecules in the vicinity of Eu3+ ion.
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18
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Ionic liquid mediated green synthesis of Ag-Au/Y2O3 nanoparticles using leaves extracts of Justicia adhatoda: Structural characterization and its biological applications. ADV POWDER TECHNOL 2021. [DOI: 10.1016/j.apt.2021.04.030] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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19
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Wang S, Han YJ, Shi L, Tang ML, Jia MX, Wang ZY, Mu ZF, Lu XL, Zhang ZW, Song AJ. Realizing a Novel Red-Emitting Ca0.99MoO4:0.01Eu3+, Al3+ Phosphor: Charge Compensation, Molten Salt Synthesis. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2021. [DOI: 10.1134/s0036024421140259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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20
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Denisenko YG, Sedykh AE, Molokeev MS, Oreshonkov AS, Aleksandrovsky AS, Krylov AS, Khritokhin NA, Sal’nikova EI, Andreev OV, Müller-Buschbaum K. Crystal and electronic structure, thermochemical and photophysical properties of europium-silver sulfate monohydrate AgEu(SO4)2·H2O. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2020.121898] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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21
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Park SJ, Joo MH, Hong SM, Kang JG, Rhee CK, Lee SW, Sohn Y. Electrochemical Eu(iii) behaviours and Eu oxysulfate recovery over terpyridine-functionalized indium tin oxide electrodes. Inorg Chem Front 2021. [DOI: 10.1039/d0qi01342k] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The Eu element was recovered as EuSO4 over new terpyridine-functionalized ITO by an electrochemical method and luminescent Eu2O2SO4 was obtained by post-thermal annealing.
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Affiliation(s)
- So Jeong Park
- Department of Chemistry
- Chungnam National University
- Daejeon 34134
- Republic of Korea
| | - Min Hee Joo
- Department of Chemistry
- Chungnam National University
- Daejeon 34134
- Republic of Korea
- Department of Chemical Engineering and Applied Chemistry
| | - Sung-Min Hong
- Department of Chemistry
- Chungnam National University
- Daejeon 34134
- Republic of Korea
- Department of Chemical Engineering and Applied Chemistry
| | - Jun-Gill Kang
- Department of Chemistry
- Chungnam National University
- Daejeon 34134
- Republic of Korea
- IDK
| | - Choong Kyun Rhee
- Department of Chemistry
- Chungnam National University
- Daejeon 34134
- Republic of Korea
| | - Sung Woo Lee
- Central Laboratory Center
- Hankyung National University
- Anseong
- Republic of Korea
| | - Youngku Sohn
- Department of Chemistry
- Chungnam National University
- Daejeon 34134
- Republic of Korea
- Department of Chemical Engineering and Applied Chemistry
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22
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Bouguerra M, Mahroug A, Wróbel A, Trzybiński D, Woźniak K, Belhouchet M. Physico-chemical study of new supramolecular-architectured hybrid organic–inorganic sulfates incorporating diammoniumdiphenylsulfone cations. RSC Adv 2021; 11:26368-26378. [PMID: 35479443 PMCID: PMC9037390 DOI: 10.1039/d1ra03696c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 07/12/2021] [Indexed: 01/18/2023] Open
Abstract
Two new hybrid organic–inorganic compounds, which incorporate 3,3′-diammoniumdiphenylsulfone or 4,4′-diammoniumdiphenylsulfone cations and sulfate anions, were synthesized and analyzed in detail.
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Affiliation(s)
- Manel Bouguerra
- Physico-Chemistry of Solid State Laboratory
- Department of Chemistry
- Faculty of Sciences of Sfax
- Sfax
- Tunisia
| | - Adel Mahroug
- Physico-Chemistry of Solid State Laboratory
- Department of Chemistry
- Faculty of Sciences of Sfax
- Sfax
- Tunisia
| | - Agata Wróbel
- Biological and Chemical Research Centre
- Faculty of Chemistry
- University of Warsaw
- 02-089 Warsaw
- Poland
| | - Damian Trzybiński
- Biological and Chemical Research Centre
- Faculty of Chemistry
- University of Warsaw
- 02-089 Warsaw
- Poland
| | - Krzysztof Woźniak
- Biological and Chemical Research Centre
- Faculty of Chemistry
- University of Warsaw
- 02-089 Warsaw
- Poland
| | - Mohamed Belhouchet
- Physico-Chemistry of Solid State Laboratory
- Department of Chemistry
- Faculty of Sciences of Sfax
- Sfax
- Tunisia
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23
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Denisenko YG, Sal’nikova EI, Basova SA, Molokeev MS, Krylov AS, Aleksandrovsky AS, Oreshonkov AS, Atuchin VV, Volkova SS, Khritokhin NA, Andreev OV. Synthesis of Samarium OxysulfateSm 2O 2SO 4 in the High-Temperature Oxidation Reaction and Its Structural, Thermal and Luminescent Properties. Molecules 2020; 25:molecules25061330. [PMID: 32183320 PMCID: PMC7144115 DOI: 10.3390/molecules25061330] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 03/10/2020] [Accepted: 03/10/2020] [Indexed: 12/03/2022] Open
Abstract
The oxidation process of samariumoxysulfide was studied in the temperature range of 500–1000 °C. Our DTA investigation allowed for establishing the main thermodynamic (∆Hºexp = −654.6 kJ/mol) and kinetic characteristics of the process (Ea = 244 kJ/mol, A = 2 × 1010). The enthalpy value of samarium oxysulfate (ΔHºf (Sm2O2SO4(monocl)) = −2294.0 kJ/mol) formation was calculated. The calculated process enthalpy value coincides with the value determined in the experiment. It was established that samarium oxysulfate crystallizes in the monoclinic symmetry class and its crystal structure belongs to space group C2/c with unit cell parameters a = 13.7442 (2), b = 4.20178 (4) and c = 8.16711 (8)Å, β = 107.224 (1)°, V = 450.498 (9)Å3, Z = 4. The main elements of the crystalline structure are obtained and the cation coordination environment is analyzed in detail. Vibrational spectroscopy methods confirmed the structural model adequacy. The Sm2O2SO4luminescence spectra exhibit three main bands easily assignable to the transitions from 4G5/2 state to 6H5/2, 6H7/2, and 6H9/2 multiplets.
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Affiliation(s)
- Yu. G. Denisenko
- Department of General and Special Chemistry, Industrial University of Tyumen, 625000 Tyumen, Russia;
| | - E. I. Sal’nikova
- Institute of Chemistry, Tyumen State University, 625003 Tyumen, Russia; (E.I.S.); (S.A.B.); (N.A.K.); (O.V.A.)
- Department of General Chemistry, Northen Trans-Ural Agricultural University, 625003 Tyumen, Russia
| | - S. A. Basova
- Institute of Chemistry, Tyumen State University, 625003 Tyumen, Russia; (E.I.S.); (S.A.B.); (N.A.K.); (O.V.A.)
| | - M. S. Molokeev
- Laboratory of Crystal Physics, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 660036 Krasnoyarsk, Russia;
- School of Engineering Physics and Radioelectronics, Siberian Federal University, 660041 Krasnoyarsk, Russia
- Department of Physics, Far Eastern State Transport University, Khabarovsk 680021, Russia
| | - A. S. Krylov
- Laboratory of Molecular Spectroscopy, Kirensky Institute of Physics Federal Research Center KSC SB RAS, 660036 Krasnoyarsk, Russia; (A.S.K.); (A.S.O.)
| | - A. S. Aleksandrovsky
- Laboratory of Coherent Optics, Kirensky Institute of Physics Federal Research Center KSC SB RAS, 660036 Krasnoyarsk, Russia;
- Institute of Nanotechnology, Spectroscopy and Quantum Chemistry, Siberian Federal University, 660041 Krasnoyarsk, Russia
| | - A. S. Oreshonkov
- Laboratory of Molecular Spectroscopy, Kirensky Institute of Physics Federal Research Center KSC SB RAS, 660036 Krasnoyarsk, Russia; (A.S.K.); (A.S.O.)
- School of Engineering and Construction, Siberian Federal University, 660041 Krasnoyarsk, Russia
| | - V. V. Atuchin
- Laboratory of Optical Materials and Structures, Institute of Semiconductor Physics, SB RAS, 630090 Novosibirsk, Russia
- Laboratory of Semiconductor and Dielectric Materials, Novosibirsk State University, 630090 Novosibirsk, Russia
- Research and Development Department, Kemerovo State University, 650000 Kemerovo, Russia
- Correspondence:
| | - S. S. Volkova
- Research Resource Center “Natural Resource Management and Physico-Chemical Research”, Tyumen State University, 625003 Tyumen, Russia;
| | - N. A. Khritokhin
- Institute of Chemistry, Tyumen State University, 625003 Tyumen, Russia; (E.I.S.); (S.A.B.); (N.A.K.); (O.V.A.)
| | - O. V. Andreev
- Institute of Chemistry, Tyumen State University, 625003 Tyumen, Russia; (E.I.S.); (S.A.B.); (N.A.K.); (O.V.A.)
- Laboratory of the chemistry of rare earth compounds, Institute of Solid State Chemistry, UB RAS, 620137 Ekaterinburg, Russia
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24
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Oreshonkov AS, Roginskii EM, Shestakov NP, Gudim IA, Temerov VL, Nemtsev IV, Molokeev MS, Adichtchev SV, Pugachev AM, Denisenko YG. Structural, Electronic and Vibrational Properties of YAl 3(BO 3) 4. MATERIALS 2020; 13:ma13030545. [PMID: 31979242 PMCID: PMC7040588 DOI: 10.3390/ma13030545] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 01/20/2020] [Accepted: 01/21/2020] [Indexed: 11/16/2022]
Abstract
The crystal structure of YAl3(BO3)4 is obtained by Rietveld refinement analysis in the present study. The dynamical properties are studied both theoretically and experimentally. The experimental Raman and Infrared spectra are interpreted using the results of ab initio calculations within density functional theory. The phonon band gap in the Infrared spectrum is observed in both trigonal and hypothetical monoclinic structures of YAl3(BO3)4. The electronic band structure is studied theoretically, and the value of the band gap is obtained. It was found that the YAl3(BO3)4 is an indirect band gap dielectric material.
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Affiliation(s)
- Aleksandr S. Oreshonkov
- Laboratory of Molecular Spectroscopy, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk 660036, Russia;
- School of Engineering and Construction, Siberian Federal University, Krasnoyarsk 660041, Russia
- Correspondence:
| | - Evgenii M. Roginskii
- Laboratory of Spectroscopy of Solid State, Ioffe Institute, St. Petersburg 194021, Russia;
| | - Nikolai P. Shestakov
- Laboratory of Molecular Spectroscopy, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk 660036, Russia;
| | - Irina A. Gudim
- Laboratory of Radiospectroscopy and Spintronics, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk 660036, Russia; (I.A.G.); (V.L.T.)
| | - Vladislav L. Temerov
- Laboratory of Radiospectroscopy and Spintronics, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk 660036, Russia; (I.A.G.); (V.L.T.)
| | - Ivan V. Nemtsev
- Federal Research Center KSC SB RAS, Krasnoyarsk 660036, Russia;
| | - Maxim S. Molokeev
- Laboratory of Crystal Physics, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk 660036, Russia;
- School of Engineering Physics and Radio Electronics, Siberian Federal University, Krasnoyarsk 660041, Russia
| | - Sergey V. Adichtchev
- Institute of Automation and Electrometry, Russian Academy of Sciences, Novosibirsk 630090, Russia; (S.V.A.); (A.M.P.)
| | - Alexey M. Pugachev
- Institute of Automation and Electrometry, Russian Academy of Sciences, Novosibirsk 630090, Russia; (S.V.A.); (A.M.P.)
| | - Yuriy G. Denisenko
- Department of Inorganic and Physical Chemistry, Tyumen State University, Tyumen 625003, Russia
- Department of General and Special Chemistry, Industrial University of Tyumen, Tyumen 625000, Russia
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26
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Denisenko YG, Molokeev MS, Krylov AS, Aleksandrovsky AS, Oreshonkov AS, Atuchin VV, Azarapin NO, Plyusnin PE, Sal’nikova EI, Andreev OV. High-temperature oxidation of europium (II) sulfide. J IND ENG CHEM 2019. [DOI: 10.1016/j.jiec.2019.05.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Xue YL, Zhang AY, Han XY, Cui XQ, Deng L, Zhou YX, Yu YP, Zhao D. K 3Eu 5(PO 4) 6: hydrothermal synthesis, crystal structure and photoluminescence properties. ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 2019; 75:883-890. [PMID: 31271376 DOI: 10.1107/s2053229619007794] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 05/29/2019] [Indexed: 11/10/2022]
Abstract
An anhydrous orthophosphate, K3Eu5(PO4)6 (tripotassium pentaeuropium hexaphosphate), has been prepared by a high-temperature solid-state reaction combined with hydrothermal synthesis, and its crystal structure was determined by single-crystal X-ray diffraction analysis (SC-XRD). The results show that the compound crystallizes in the monoclinic space group C2/c and the structure features a three-dimensional framework of [Eu5(PO4)6]∞, with the tunnel filled by K+ ions. The IR spectrum, UV-Vis spectrum and luminescence properties of polycrystalline samples of K3Eu5(PO4)6, annealed at temperatures of 650, 700, 750, 800 and 850 °C, were investigated. Although with a full Eu3+ concentration (9.96 × 1021 ions cm-3), the self-activated phosphor K3Eu5(PO4)6 shows s strong luminescence emission intensity with a quantum yield of 37%. Under near-UV light excitation (393 nm), the series of samples shows the characteristic emissions of Eu3+ ions in the visible region from 575 to 715 nm. The sample sintered at 800 °C gives the strongest emission and its lifetime sintered at 800 °C (1.88 ms) is also the longest of all.
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Affiliation(s)
- Ya Li Xue
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan 454000, People's Republic of China
| | - Ai Yun Zhang
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan 454000, People's Republic of China
| | - Xiao Yang Han
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan 454000, People's Republic of China
| | - Xiao Qi Cui
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan 454000, People's Republic of China
| | - Ling Deng
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan 454000, People's Republic of China
| | - Yi Xiang Zhou
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan 454000, People's Republic of China
| | - Ya Ping Yu
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan 454000, People's Republic of China
| | - Dan Zhao
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan 454000, People's Republic of China
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