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Ogugua SN, Abram C, Fond B, Kroon RE, Beyrau F, Swart HC. Effect of annealing conditions on the luminescence properties and thermometric performance of Sr 3Al 2O 5Cl 2:Eu 2+ and SrAl 2O 4:Eu 2+ phosphors. Dalton Trans 2024; 53:4551-4563. [PMID: 38349055 DOI: 10.1039/d3dt03836j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2024]
Abstract
We report on the synthesis, photoluminescence optimization and thermometric properties of Sr3Al2O5Cl2:Eu2+ and SrAl2O4:Eu2+ phosphor powders. The photoluminescence of Sr2.9Al2O5Cl2:0.1Eu2+ phosphors exhibits a blue-shift with an increasing annealing temperature owing to a decrease in the crystal field strength of the host caused by evaporation of Cl from the material. The quenching of the blue band in favour of the red band observed in the luminescence spectra of Sr2.9Al2O5Cl2:0.1Eu2+ with an increased annealing temperature was explained using the mechanism of the Landau-Zener transitions. The quantum yield and the lifetime of the phosphors depend on the annealing temperature. Phosphor samples annealed at 850 °C, 1000 °C, 1200 °C and 1500 °C were found to be potential luminescence thermometers using the luminescence spectral method. For Sr3Al2O5Cl2:Eu2+ annealed at 1000 °C, the temperature-dependent dual-band intensity ratio demonstrated a high-temperature sensitivity of ∼1.47%/°C in the temperature range of 23 °C to 40 °C which is superior to other reported phosphors with a microsecond decay time, suggesting that the material has potential for sensitive thermometry applications at ambient temperatures.
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Affiliation(s)
- Simon N Ogugua
- Department of Physics, University of the Free State, Bloemfontein, ZA9300, South Africa.
| | - Christopher Abram
- Department of Mechanical and Aerospace Engineering, Princeton University, NJ 08544, USA.
| | - Benoît Fond
- Department of Aeronautics, ONERA the French Aerospace Lab, 92190 Meudon, France.
| | - Robin E Kroon
- Department of Physics, University of the Free State, Bloemfontein, ZA9300, South Africa.
| | - Frank Beyrau
- Lehrstuhl für Technische Thermodynamik, Otto-von-Guericke-Universität Magdeburg, 39106 Magdeburg, Germany.
| | - Hendrik C Swart
- Department of Physics, University of the Free State, Bloemfontein, ZA9300, South Africa.
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Singh P, Mishra H, Rai SB. Multicolor tunable emission through energy transfer in Dy 3+/Ho 3+ co-doped CaTiO 3 phosphors with high thermal stability for solid state lighting applications. Sci Rep 2023; 13:21221. [PMID: 38040827 PMCID: PMC10692187 DOI: 10.1038/s41598-023-46065-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Accepted: 10/27/2023] [Indexed: 12/03/2023] Open
Abstract
The exploration of multicolor emitting phosphors with single phase is extremely important for n-UV chip excited LED/WLED's and multicolor display devices. In this paper, Dy3+, Ho3+ singly doped and Dy3+/Ho3+ co-doped CaTiO3 phosphor materials have been synthesized by solid state reaction method at 1473 K. The synthesized materials were characterized by XRD, FE-SEM, EDX, FTIR, PL and lifetime measurements. The PL emission spectra of Dy3+ doped CaTiO3 phosphors give intense blue and yellow emissions under UV excitation, while the PL emission spectra of Ho3+ doped CaTiO3 phosphor show intense green emission under UV/blue excitations. Further, to get the multicolor emission including white light, Dy3+ and Ho3+ were co-doped simultaneously in CaTiO3 host. It is found that alongwith colored and white light emissions, it also shows energy transfer from Dy3+ to Ho3+ with 367 nm and from Ho3+ to Dy3+ under 362 nm excitations. The energy transfer efficiency is found to be 67.76% and 69.39% for CaTiO3:4Dy3+/3Ho3+ and CaTiO3:3Ho3+/5Dy3+ phosphors, respectively. The CIE color coordinates, CCT and color purity of the phosphors have been calculated, which show color tunability from whitish to deep green via greenish yellow color. The lifetime of 4F9/2 level of Dy3+ ion and 5S2 level of Ho3+ ion is decreased in presence of Ho3+ and Dy3+ ions, respectively. This is due to energy transfer from Dy3+ to Ho3+ ions and vice versa. A temperature dependent photoluminescence studied of CaTiO3:4Dy3+/2Ho3+ phosphor show a high thermal stability (82% at 423 K of initial temperature 303 K) in the temperature range 303-483 K with activation energy 0.17 eV. The PLQY are 30%, 33% and 35% for CaTiO3:4Dy3+, CaTiO3:4Dy3+/2Ho3+ and CaTiO3:3Ho3+ phosphors, respectively. Hence, Dy3+, Ho3+ singly doped and Dy3+/Ho3+ co-doped CaTiO3 phosphor materials can be used in the field of single matrix perovskite color tunable phosphors which may be used in multicolor display devices, n-UV chip excited LED/WLED's and photodynamic therapy for the cancer treatment.
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Affiliation(s)
- Priti Singh
- Laser and Spectroscopy Laboratory, Department of Physics, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
| | - Hirdyesh Mishra
- Physics Section, Mahila Maha Vidhyalaya, Department of Physics, Banaras Hindu University, Varanasi, 221005, India
| | - Shyam Bahadur Rai
- Laser and Spectroscopy Laboratory, Department of Physics, Institute of Science, Banaras Hindu University, Varanasi, 221005, India.
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Tian L, Shen L, Tian D, Ge Y, Sun Z, Liu Y. Rare earth metals detection and recognition based on laser induced breakdown spectroscopy and machine learning. OPTICS EXPRESS 2023; 31:20545-20558. [PMID: 37381447 DOI: 10.1364/oe.493905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 05/19/2023] [Indexed: 06/30/2023]
Abstract
The rapid detection and identification of the electronic waste (e-waste) containing rare earth (RE) elements is of great significance for the recycling of RE elements. However, the analysis of these materials is extremely challenging due to extreme similarities in appearance or chemical composition. In this research, a new system based on laser induced breakdown spectroscopy (LIBS) and machine learning algorithms is developed for identifying and classifying e-waste of rare-earth phosphors (REPs). Three different kinds of phosphors are selected and the spectra is monitored using this new developed system. The analysis of phosphor spectra shows that there are Gd, Yd, and Y RE element spectra in the phosphor. The results also verify that LIBS could be used to detect RE elements. An unsupervised learning method, principal component analysis (PCA), is used to distinguish the three phosphors and training data set is stored for further identification. Additionally, a supervised learning method, backpropagation artificial neural network (BP-ANN) algorithm is used to establish a neural network model to identify phosphors. The result show that the final phosphor recognition rate reaches 99.9%. The innovative system based on LIBS and machine learning (ML) has the potential to improve rapid in situ detection of RE elements for the classification of e-waste.
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Nosov VG, Betina AA, Bulatova TS, Guseva PB, Kolesnikov IE, Orlov SN, Panov MS, Ryazantsev MN, Bogachev NA, Skripkin MY, Mereshchenko AS. Effect of Gd 3+, La 3+, Lu 3+ Co-Doping on the Morphology and Luminescent Properties of NaYF 4:Sm 3+ Phosphors. MATERIALS (BASEL, SWITZERLAND) 2023; 16:2157. [PMID: 36984038 PMCID: PMC10058261 DOI: 10.3390/ma16062157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 03/03/2023] [Accepted: 03/06/2023] [Indexed: 06/18/2023]
Abstract
The series of luminescent NaYF4:Sm3+ nano- and microcrystalline materials co-doped by La3+, Gd3+, and Lu3+ ions were synthesized by hydrothermal method using rare earth chlorides as the precursors and citric acid as a stabilizing agent. The phase composition of synthesized compounds was studied by PXRD. All synthesized materials except ones with high La3+ content (where LaF3 is formed) have a β-NaYF4 crystalline phase. SEM images demonstrate that all particles have shape of hexagonal prisms. The type and content of doping REE significantly effect on the particle size. Upon 400 nm excitation, phosphors exhibit distinct emission peaks in visible part of the spectrum attributed to 4G5/2→6HJ transitions (J = 5/2-11/2) of Sm3+ ion. Increasing the samarium (III) content results in concentration quenching by dipole-dipole interactions, the optimum Sm3+concentration is found to be of 2%. Co-doping by non-luminescent La3+, Gd3+ and Lu3+ ions leads to an increase in emission intensity. This effect was explained from the Sm3+ local symmetry point of view.
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Affiliation(s)
- Viktor G. Nosov
- Saint-Petersburg State University, 7/9 Universitetskaya Emb., 199034 St. Petersburg, Russia
| | - Anna A. Betina
- Saint-Petersburg State University, 7/9 Universitetskaya Emb., 199034 St. Petersburg, Russia
| | - Tatyana S. Bulatova
- Saint-Petersburg State University, 7/9 Universitetskaya Emb., 199034 St. Petersburg, Russia
| | - Polina B. Guseva
- Saint-Petersburg State University, 7/9 Universitetskaya Emb., 199034 St. Petersburg, Russia
| | - Ilya E. Kolesnikov
- Saint-Petersburg State University, 7/9 Universitetskaya Emb., 199034 St. Petersburg, Russia
| | - Sergey N. Orlov
- Saint-Petersburg State University, 7/9 Universitetskaya Emb., 199034 St. Petersburg, Russia
- Federal State Unitary Enterprise “Alexandrov Research Institute of Technology”, 72 Koporskoe Shosse, 188540 Sosnovy Bor, Russia
- Institute of Nuclear Industry, Peter the Great St. Petersburg Polytechnic University (SPbSU), 29, Polytechnicheskaya Street, 195251 St. Petersburg, Russia
| | - Maxim S. Panov
- Saint-Petersburg State University, 7/9 Universitetskaya Emb., 199034 St. Petersburg, Russia
- Center for Biophysical Studies, Saint Petersburg State Chemical Pharmaceutical University, 14 Professor Popov Str., Lit. A, 197022 St. Petersburg, Russia
| | - Mikhail N. Ryazantsev
- Saint-Petersburg State University, 7/9 Universitetskaya Emb., 199034 St. Petersburg, Russia
- Nanotechnology Research and Education Centre RAS, Saint Petersburg Academic University, 8/3 Khlopina Street, 194021 St. Petersburg, Russia
| | - Nikita A. Bogachev
- Saint-Petersburg State University, 7/9 Universitetskaya Emb., 199034 St. Petersburg, Russia
| | - Mikhail Yu Skripkin
- Saint-Petersburg State University, 7/9 Universitetskaya Emb., 199034 St. Petersburg, Russia
| | - Andrey S. Mereshchenko
- Saint-Petersburg State University, 7/9 Universitetskaya Emb., 199034 St. Petersburg, Russia
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Nosov VG, Toikka YN, Petrova AS, Butorlin OS, Kolesnikov IE, Orlov SN, Ryazantsev MN, Kolesnik SS, Bogachev NA, Skripkin MY, Mereshchenko AS. Brightly Luminescent (Tb xLu 1-x) 2bdc 3·nH 2O MOFs: Effect of Synthesis Conditions on Structure and Luminescent Properties. Molecules 2023; 28:molecules28052378. [PMID: 36903620 PMCID: PMC10005128 DOI: 10.3390/molecules28052378] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 03/02/2023] [Accepted: 03/02/2023] [Indexed: 03/08/2023] Open
Abstract
Luminescent, heterometallic terbium(III)-lutetium(III) terephthalate metal-organic frameworks (MOFs) were synthesized via direct reaction between aqueous solutions of disodium terephthalate and nitrates of corresponding lanthanides by using two methods: synthesis from diluted and concentrated solutions. For (TbxLu1-x)2bdc3·nH2O MOFs (bdc = 1,4-benzenedicarboxylate) containing more than 30 at. % of Tb3+, only one crystalline phase was formed: Ln2bdc3·4H2O. At lower Tb3+ concentrations, MOFs crystallized as the mixture of Ln2bdc3·4H2O and Ln2bdc3·10H2O (diluted solutions) or Ln2bdc3 (concentrated solutions). All synthesized samples that contained Tb3+ ions demonstrated bright green luminescence upon excitation into the 1ππ* excited state of terephthalate ions. The photoluminescence quantum yields (PLQY) of the compounds corresponding to the Ln2bdc3 crystalline phase were significantly larger than for Ln2bdc3·4H2O and Ln2bdc3·10H2O phases due to absence of quenching from water molecules possessing high-energy O-H vibrational modes. One of the synthesized materials, namely, (Tb0.1Lu0.9)2bdc3·1.4H2O, had one of the highest PLQY among Tb-based MOFs, 95%.
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Affiliation(s)
- Viktor G. Nosov
- Saint-Petersburg State University, 7/9 Universitetskaya emb., 199034 St. Petersburg, Russia
| | - Yulia N. Toikka
- Saint-Petersburg State University, 7/9 Universitetskaya emb., 199034 St. Petersburg, Russia
| | - Anna S. Petrova
- Saint-Petersburg State University, 7/9 Universitetskaya emb., 199034 St. Petersburg, Russia
| | - Oleg S. Butorlin
- Saint-Petersburg State University, 7/9 Universitetskaya emb., 199034 St. Petersburg, Russia
| | - Ilya E. Kolesnikov
- Saint-Petersburg State University, 7/9 Universitetskaya emb., 199034 St. Petersburg, Russia
| | - Sergey N. Orlov
- Saint-Petersburg State University, 7/9 Universitetskaya emb., 199034 St. Petersburg, Russia
- Federal State Unitary Enterprise “Alexandrov Research Institute of Technology”, 72 Koporskoe Shosse, 188540 Sosnovy Bor, Russia
- Institute of Nuclear Industry, Peter the Great St. Petersburg Polytechnic University (SPbSU), 29 Polytechnicheskaya Street, 195251 St. Petersburg, Russia
| | - Mikhail N. Ryazantsev
- Saint-Petersburg State University, 7/9 Universitetskaya emb., 199034 St. Petersburg, Russia
- Nanotechnology Research and Education Centre RAS, Saint Petersburg Academic University, ul. Khlopina 8/3, 194021 St. Petersburg, Russia
| | - Stefaniia S. Kolesnik
- Saint-Petersburg State University, 7/9 Universitetskaya emb., 199034 St. Petersburg, Russia
| | - Nikita A. Bogachev
- Saint-Petersburg State University, 7/9 Universitetskaya emb., 199034 St. Petersburg, Russia
| | - Mikhail Yu. Skripkin
- Saint-Petersburg State University, 7/9 Universitetskaya emb., 199034 St. Petersburg, Russia
| | - Andrey S. Mereshchenko
- Saint-Petersburg State University, 7/9 Universitetskaya emb., 199034 St. Petersburg, Russia
- Correspondence: ; Tel.: +7-951-677-5465
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Dalal H, Kumar M, Devi S, Sehrawat P, Sheoran M, Devi P, Sehrawat N, Malik RK. Combustion Synthesis and Study of Double Charge Transfer in Highly Efficient Cool White-emitting Dy 3+ Activated Vanadate-based Nanophosphor for Advanced Solid-state Lighting. J Fluoresc 2023; 33:497-508. [PMID: 36449228 DOI: 10.1007/s10895-022-03098-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 11/21/2022] [Indexed: 12/05/2022]
Abstract
A series of Ca9Gd(VO4)7: Dy3+ (x = 0.01-0.20) nanophosphor crystals emitting a cool white light were synthesized by solution combustion methodology. The X-ray diffraction patterns were analyzed and processed using Rietveld refinement. The fabricated nanophosphor was found to crystallize in a trigonal crystal lattice with space group R3c(161). The morphological behavior of the prepared nanophosphor was investigated using transmission electron microscopy (TEM) and scanning electron microscopy (SEM). The photoluminescence properties of the nanophosphor correspond to cool white emission upon near-ultraviolet (NUV) excitation at 327 nm due to 4F9/2 → 6H15/2 (bluish) and 4F9/2 → 6H13/2 (yellowish) radiative relaxations at 487 nm and 576 nm respectively. Also, there is a strong occurrence of double charge transfer from O2- ions to Dy3+ and V5+ ions with the latter being stronger due to the high positive charge of V5+ ions. Color coordinates (x = 0.2878, y = 0.3259) are consistent with white emission. Auzel's model was implemented to examine the non-radiative relaxation (113.5 ms-1), radiative lifetime (1.4856 ms), and quantum efficiency (83.13%) values. The crystalline and optical behavior of the synthesized cool white emitting nanophosphor facilitates its use in near-UV-based WLEDs and other advanced solid-state lighting.
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Affiliation(s)
- Hina Dalal
- Department of Chemistry, Maharshi Dayanand University, Rohtak, 124001, India
| | - Mukesh Kumar
- Department of Chemistry, Maharshi Dayanand University, Rohtak, 124001, India
| | - Suman Devi
- Department of Chemistry, Banasthali Vidyapith, Banasthali, 304022, India
| | - Priyanka Sehrawat
- Department of Chemistry, Maharshi Dayanand University, Rohtak, 124001, India
| | - Monika Sheoran
- Department of Chemistry, Maharshi Dayanand University, Rohtak, 124001, India
| | - Poonam Devi
- Department of Chemistry, Banasthali Vidyapith, Banasthali, 304022, India
| | - Neeraj Sehrawat
- Department of Chemistry, Maharshi Dayanand University, Rohtak, 124001, India
| | - Rajesh Kumar Malik
- Department of Chemistry, Maharshi Dayanand University, Rohtak, 124001, India.
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Elakkiya V, Sumathi S. Bismuth and Vanadium-Substituted Yttrium Phosphates for Cool Coating Applications. ACS OMEGA 2022; 7:44266-44277. [PMID: 36506200 PMCID: PMC9730463 DOI: 10.1021/acsomega.2c05748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 11/17/2022] [Indexed: 06/17/2023]
Abstract
Luminescent yttrium phosphate is engineered into an environmentally benign near infrared (NIR) reflective yellow pigment by the substitution of bismuth and vanadium metals in the host lattice. A series of YP(1-x)V x O4 (x = 0, 0.05, 0.1, 0.15, 0.2, and 0.4), Y(1-y)Bi y PO4 (y = 0.1 and 0.3), and Y(1-y)Bi y P(1-x)V x O4 (x = y = 0.2, 0.4, and 0.6) were prepared by the precipitation method. Secondary phase was noticed at x = 0.2 and y = 0.2 while substituting vanadium and bismuth, respectively, due to high ionic radii of the dopant ions. Co substitution of vanadium and bismuth in the YPO4 lattice enhanced both NIR reflectance and yellow color of all the fabricated materials. XPS spectra proved the presence of trivalent bismuth and pentavalent vanadium in Y0.4Bi0.6P0.4V0.6O4. Due to the substitution effect, a more defined morphology was noticed, which enhanced the scattering co-efficient of the fabricated materials; hence, the NIR reflectance of the materials was increased from 68% (YPO4) to 83% (Y0.4Bi0.6P0.4V0.6O4). Chemical and thermal stability test of Y0.4Bi0.6P0.4V0.6O4 confirmed the color and strength of the designed pigment. With good yellow hue (b* = +56.06), high NIR solar reflectance (R* = 83%), and good stability, Y0.4Bi0.6P0.4V0.6O4 can act as an environmentally benign cool yellow pigment.
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Evolution of Highly Biocompatible and Thermally Stable YVO4:Er3+/Yb3+ Upconversion Mesoporous Hollow Nanospheriods as Drug Carriers for Therapeutic Applications. NANOMATERIALS 2022; 12:nano12152520. [PMID: 35893490 PMCID: PMC9332312 DOI: 10.3390/nano12152520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 07/19/2022] [Accepted: 07/19/2022] [Indexed: 12/10/2022]
Abstract
In recent times, upconversion nanomaterials with mesoporous hollow structures have gained significant interest as a prospective nano-platform for cancer imaging and therapeutic applications. In this study, we report a highly biocompatible YVO4:1Er3+/10Yb3+ upconversion mesoporous hollow nanospheriods (YVO4:Er3+/Yb3+ UC-MHNSPs) by a facile and rapid self-sacrificing template method. The Rietveld analysis confirmed their pure phase of tetragonal zircon structure. Nitrogen adsorption–desorption isotherms revealed the mesoporous nature of these UC-MHNSPs and the surface area is found to be ~87.46 m2/g. Under near-infrared excitation (980 nm), YVO4:Er3+/Yb3+ UC-MHNSPs showed interesting color tunability from red to green emission. Initially (at 0.4 W), energy back transfer from Er3+ to Yb3+ ions leads to the strong red emission. Whereas at high pump powers (1 W), a fine green emission is observed due to the dominant three-photon excitation process and traditional energy transfer route from Er3+ to Yb3+ ions. The bright red light from the membrane of HeLa cells confirmed the effective cellular uptake of YVO4:Er3+/Yb3+ UC-MHNSPs. The resonant decrease in cell viability on increasing the concentration of curcumin conjugated YVO4:Er3+/Yb3+ UC-MHNSPs established their excellent antitumor activity. Therefore, the acquired results indicate that these YVO4:Er3+/Yb3+ UC-MHNSPs are promising drug carriers for bioimaging and various therapeutic applications.
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Luminescence properties of rare earth complexes bonded to novel mesoporous spherical hybrid materials. J RARE EARTH 2022. [DOI: 10.1016/j.jre.2022.01.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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10
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Kolesnikov IE, Afanaseva EV, Kurochkin MA, Vaishlia EI, Kolesnikov EY, Lähderanta E. Dual-center co-doped and mixed ratiometric LuVO 4:Nd 3+/Yb 3+nanothermometers. NANOTECHNOLOGY 2022; 33:165504. [PMID: 35008067 DOI: 10.1088/1361-6528/ac49c3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Accepted: 01/10/2022] [Indexed: 06/14/2023]
Abstract
During last decade luminescence thermometry has become a widely studied research field due to its potential applications for real time contactless temperature sensing where usual thermometers cannot be used. Special attention is paid to the development of accurate and reliable thermal sensors with simple reading. To address existing problems of ratiometric thermometers based on thermally-coupled levels, LuVO4:Nd3+/Yb3+thermal sensors were studied as a proof-of-concept of dual-center thermometer obtained by co-doping or mixture. Both approaches to create a dual-center sensor were compared in terms of energy transfer efficiency, relative sensitivity, and temperature resolution. Effect of excitation mechanism and Yb3+doping concentration on thermometric performances was also investigated. The best characteristics ofSr = 0.34% K-1@298 K and ΔT = 0.2 K were obtained for mixed phosphors upon host excitation.
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Affiliation(s)
- Ilya E Kolesnikov
- St. Petersburg State University, Universitetskaya nab. 7-9, 199034, St. Petersburg, Russia
- LUT University, Skinnarilankatu 34, FI-53850, Lappeenranta, Finland
| | - Elena V Afanaseva
- Peter the Great St. Petersburg Polytechnic University, Polytechnicheskaya str. 29, 195251, St. Petersburg, Russia
| | - Mikhail A Kurochkin
- St. Petersburg State University, Universitetskaya nab. 7-9, 199034, St. Petersburg, Russia
| | - Elena I Vaishlia
- Peter the Great St. Petersburg Polytechnic University, Polytechnicheskaya str. 29, 195251, St. Petersburg, Russia
| | - Evgenii Yu Kolesnikov
- Peter the Great St. Petersburg Polytechnic University, Polytechnicheskaya str. 29, 195251, St. Petersburg, Russia
| | - Erkki Lähderanta
- LUT University, Skinnarilankatu 34, FI-53850, Lappeenranta, Finland
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11
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Kolesnikov IE, Afanaseva EV, Kurochkin MA, Vaishlia EI, Kalinichev AA, Kolesnikov EY, Lähderanta E. Upconverting NIR-to-NIR LuVO 4:Nd 3+/Yb 3+ Nanophosphors for High-Sensitivity Optical Thermometry. ACS APPLIED MATERIALS & INTERFACES 2022; 14:1757-1764. [PMID: 34978182 DOI: 10.1021/acsami.1c20937] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Accurate contactless thermometry is required in many rapidly developing modern applications such as biomedicine, micro- and nanoelectronics, and integrated optics. Ratiometric luminescence thermal sensing attracts a lot of attention due to its robustness toward systematic errors. Herein, a phonon-assisted upconversion in LuVO4:Nd3+/Yb3+ nanophosphors was successfully applied for temperature measurements within the 323-873 K range via the luminescence intensity ratio technique. Dual-activating samples were obtained by codoping and mixing single-doped nanopowders. The effect of the type of dispersion system and the Yb3+ doping concentration was studied in terms of thermometric performances. The relative thermal sensitivity reached a value of 2.6% K-1, while the best temperature resolution was 0.2 K. The presented findings show the way to enhance the thermometric characteristics of contactless optical sensors.
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Affiliation(s)
- Ilya E Kolesnikov
- St. Petersburg State University, Universitetskaya nab. 7-9, 199034 St. Petersburg, Russia
- LUT University, Skinnarilankatu 34, 53850 Lappeenranta, Finland
| | - Elena V Afanaseva
- Peter the Great St. Petersburg Polytechnic University, Polytechnicheskaya str. 29, 195251 St. Petersburg, Russia
| | - Mikhail A Kurochkin
- St. Petersburg State University, Universitetskaya nab. 7-9, 199034 St. Petersburg, Russia
| | - Elena I Vaishlia
- Peter the Great St. Petersburg Polytechnic University, Polytechnicheskaya str. 29, 195251 St. Petersburg, Russia
| | - Alexey A Kalinichev
- St. Petersburg State University, Universitetskaya nab. 7-9, 199034 St. Petersburg, Russia
| | - Evgenii Yu Kolesnikov
- Peter the Great St. Petersburg Polytechnic University, Polytechnicheskaya str. 29, 195251 St. Petersburg, Russia
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12
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Li M, Zhou J, Lei R, Wang H, Huang F, Xu S. Synthesis of ZrO 2:Pr 3+,Gd 3+ nanocrystals for optical thermometry with a thermal sensitivity above 2.32% K -1 over 270 K of sensing range. Dalton Trans 2021; 50:15688-15695. [PMID: 34693945 DOI: 10.1039/d1dt02070f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Nowadays, there is enthusiastic effort to develop luminescent thermometers used for remote and high-sensitivity temperature readout over a wide sensing range. Herein, Pr3+ and Gd3+ co-doped ZrO2 nanocrystals are designed, prepared and investigated by XRD, Raman spectroscopy, XPS, TEM, EDS, DRS, PLE and PL spectroscopy. Upon 275 nm irradiation, the PL spectrum of ZrO2:Pr3+,Gd3+ is found to be composed of a narrow emission peak at 314 nm (Gd3+ 6P7/2-8S7/2), a broad defect-related emission band at 400 nm, and several emission peaks in the wavelength region of 585-700 nm (Pr3+ 1D2-3H4, 3P0-3H6, and 3P0-3F2), which exhibit different thermal responses owing to the effects of the various non-radiative relaxation processes and trap energy levels. Accordingly, the luminescence intensity ratio (LIR) between the Pr3+ 1D2-3H4 and Gd3+ 6P7/2-8S7/2 transitions demonstrates excellent relative sensing sensitivity values ((2.32 ± 0.01)% K-1-(8.32 ± 0.05)% K-1) and low temperature uncertainties (0.08 K-0.28 K) over a wide temperature sensing range of 303 K to 573 K, which are remarkably better than those of many other luminescence thermometers. What is discussed in the present study may be conducive to broadening the research region of RE3+ doped luminescence thermometric phosphors, especially for materials with rich 4f-4f transition lines and defect-related luminescence.
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Affiliation(s)
- Minghui Li
- College of Materials and Chemistry, China Jiliang University, Hangzhou, 310018, China.,Institute of Optoelectronic Materials and Devices, China Jiliang University, Hangzhou, 310018, China.
| | - Jun Zhou
- School of Physics, Southeast University, Nanjing, 211189, China
| | - Ruoshan Lei
- Institute of Optoelectronic Materials and Devices, China Jiliang University, Hangzhou, 310018, China.
| | - Huanping Wang
- Institute of Optoelectronic Materials and Devices, China Jiliang University, Hangzhou, 310018, China.
| | - Feifei Huang
- Institute of Optoelectronic Materials and Devices, China Jiliang University, Hangzhou, 310018, China.
| | - Shiqing Xu
- Institute of Optoelectronic Materials and Devices, China Jiliang University, Hangzhou, 310018, China.
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Runowski M, Zheng T, Woźny P, Du P. NIR emission of lanthanides for ultrasensitive luminescence manometry-Er 3+-activated optical sensor of high pressure. Dalton Trans 2021; 50:14864-14871. [PMID: 34604874 DOI: 10.1039/d1dt02681j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Pressure is an important physical parameter and hence its monitoring is very important for different industrial and scientific applications. Although commonly used luminescent pressure sensors (ruby-Al2O3:Cr3+ and SrB4O7:Sm2+) allow optical monitoring of pressure in compressed systems (usually in a diamond anvil cell; DAC), their detection resolution is limited by sensitivity, i.e., pressure response in a form of the detected spectral shift. Here we report, a breakthrough in optical pressure sensing by developing an ultra-sensitive NIR pressure sensor (dλ/dP = 1.766 nm GPa-1). This luminescent manometer is based on the optically active YVO4:Yb3+-Er3+ phosphor material which exhibits the largest spectral shift as a function of pressure compared to other luminescent pressure gauges reported elsewhere. In addition, thanks to the locations of excitation and emission in the NIR range, the developed optical manometer allows high-pressure measurements (without spectral overlapping/interferences) of various luminescent organic and inorganic materials, which are typically excited and can emit in the UV-vis spectral ranges.
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Affiliation(s)
- Marcin Runowski
- Adam Mickiewicz University, Faculty of Chemistry, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland.
| | - Teng Zheng
- Adam Mickiewicz University, Faculty of Chemistry, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland.
| | - Przemysław Woźny
- Adam Mickiewicz University, Faculty of Chemistry, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland.
| | - Peng Du
- Department of Microelectronic Science and Engineering, School of Physical Science and Technology, Ningbo University, 315211 Ningbo, Zhejiang, China.
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Hou P, Ju P, Hao L, Chen C, Jiang F, Ding H, Sun C. Colorimetric determination of hydrogen peroxide based on the robust peroxidase-like activities of flower-like YVO4 microstructures. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126427] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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15
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Myoung N, Jung GB. Effects of annealing temperature and neodymium concentration on structural and photoluminescence properties of Nd3+-doped Y2O3-SiO2 powders. J RARE EARTH 2021. [DOI: 10.1016/j.jre.2020.06.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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16
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Kulakova AN, Nigoghossian K, Félix G, Khrustalev VN, Shubina ES, Long J, Guari Y, Carlos LD, Bilyachenko AN, Larionova J. New Magnetic and Luminescent Dy(III) and Dy(III)/Y(III) Based Tetranuclear Silsesquioxane Cages. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100308] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Alena N. Kulakova
- Nesmeyanov Institute of Organoelement Compounds Russian Academy of Sciences Vavilova str., 28 Moscow 119991 Russia
- Peoples' Friendship University of Russia RUDN University) Miklukho-Maklay Str., 6 117198 Moscow Russia
- ICGM Univ. Montpellier CNRS, ENSCM Montpellier France
| | | | - Gautier Félix
- ICGM Univ. Montpellier CNRS, ENSCM Montpellier France
| | - Victor N. Khrustalev
- Peoples' Friendship University of Russia RUDN University) Miklukho-Maklay Str., 6 117198 Moscow Russia
- Zelinsky Institute of Organic Chemistry Russian Academy of Sciences Leninsky Prospect 47 Moscow 119991 Russia
| | - Elena S. Shubina
- Nesmeyanov Institute of Organoelement Compounds Russian Academy of Sciences Vavilova str., 28 Moscow 119991 Russia
| | - Jérôme Long
- ICGM Univ. Montpellier CNRS, ENSCM Montpellier France
| | - Yannick Guari
- ICGM Univ. Montpellier CNRS, ENSCM Montpellier France
| | - Luis D. Carlos
- Phantom-g Physics Department and CICECO – Aveiro Institute of Materials University of Aveiro 3810-193 Aveiro Portugal
| | - Alexey N. Bilyachenko
- Nesmeyanov Institute of Organoelement Compounds Russian Academy of Sciences Vavilova str., 28 Moscow 119991 Russia
- Peoples' Friendship University of Russia RUDN University) Miklukho-Maklay Str., 6 117198 Moscow Russia
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Singh S, Simantilleke AP, Singh D. Crystal structure and photoluminescence investigations of Y3Al5O12:Dy3+ nanocrystalline phosphors for WLEDs. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2020.138300] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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18
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Kolesnikov IE, Vidyakina AA, Vasileva MS, Nosov VG, Bogachev NA, Sosnovsky VB, Skripkin MY, Tumkin II, Lähderanta E, Mereshchenko AS. The effect of Eu 3+ and Gd 3+ co-doping on the morphology and luminescence of NaYF 4:Eu 3+, Gd 3+ phosphors. NEW J CHEM 2021. [DOI: 10.1039/d1nj02193a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Eu3+ and Gd3+ doping results in the size reduction of β-NaYF4: Eu3+, Gd3+ microparticles; Gd3+ co-doping enhances the luminescence intensity.
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Affiliation(s)
- Ilya E. Kolesnikov
- Saint-Petersburg State University
- 7/9 Universitetskaya emb
- St. Petersburg 199034
- Russia
- LUT University
| | | | - Marina S. Vasileva
- Saint-Petersburg State University
- 7/9 Universitetskaya emb
- St. Petersburg 199034
- Russia
| | - Viktor G. Nosov
- Saint-Petersburg State University
- 7/9 Universitetskaya emb
- St. Petersburg 199034
- Russia
| | - Nikita A. Bogachev
- Saint-Petersburg State University
- 7/9 Universitetskaya emb
- St. Petersburg 199034
- Russia
- Sirius University of Science and Technology
| | | | - Mikhail Y. Skripkin
- Saint-Petersburg State University
- 7/9 Universitetskaya emb
- St. Petersburg 199034
- Russia
- Sirius University of Science and Technology
| | - Ilya I. Tumkin
- Saint-Petersburg State University
- 7/9 Universitetskaya emb
- St. Petersburg 199034
- Russia
| | | | - Andrey S. Mereshchenko
- Saint-Petersburg State University
- 7/9 Universitetskaya emb
- St. Petersburg 199034
- Russia
- Sirius University of Science and Technology
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Suta M, Meijerink A. A Theoretical Framework for Ratiometric Single Ion Luminescent Thermometers—Thermodynamic and Kinetic Guidelines for Optimized Performance. ADVANCED THEORY AND SIMULATIONS 2020. [DOI: 10.1002/adts.202000176] [Citation(s) in RCA: 100] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Markus Suta
- Condensed Matter and Interfaces Debye Institute for Nanomaterials Science Department of Chemistry, Utrecht University Princetonplein 1 Utrecht 3584 CC The Netherlands
| | - Andries Meijerink
- Condensed Matter and Interfaces Debye Institute for Nanomaterials Science Department of Chemistry, Utrecht University Princetonplein 1 Utrecht 3584 CC The Netherlands
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Runowski M, Woźny P, Stopikowska N, Martín IR, Lavín V, Lis S. Luminescent Nanothermometer Operating at Very High Temperature-Sensing up to 1000 K with Upconverting Nanoparticles (Yb 3+/Tm 3+). ACS APPLIED MATERIALS & INTERFACES 2020; 12:43933-43941. [PMID: 32869638 PMCID: PMC7660569 DOI: 10.1021/acsami.0c13011] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Lanthanide-based luminescent nanothermometers play a crucial role in optical temperature determination. However, because of the strong thermal quenching of the luminescence, as well as the deterioration of their sensitivity and resolution with temperature elevation, they can operate in a relatively low-temperature range, usually from cryogenic to ≈800 K. In this work, we show how to overcome these limitations and monitor very high-temperature values, with high sensitivity (≈2.1% K-1) and good thermal resolution (≈1.4 K) at around 1000 K. As an optical probe of temperature, we chose upconverting Yb3+-Tm3+ codoped YVO4 nanoparticles. For ratiometric sensing in the low-temperature range, we used the relative intensities of the Tm3+ emissions associated with the 3F2,3 and 3H4 thermally coupled levels, that is, 3F2,3 → 3H6/3H4 → 3H6 (700/800 nm) band intensity ratio. In order to improve sensitivity and resolution in the high-temperature range, we used the 940/800 nm band intensity ratio of the nonthermally coupled levels of Yb3+ (2F5/2 → 2F7/2) and Tm3+ (3H4 → 3H6). These NIR bands are very intense, even at extreme temperature values, and their intensity ratio changes significantly, allowing accurate temperature sensing with high thermal and spatial resolutions. The results presented in this work may be particularly important for industrial applications, such as metallurgy, catalysis, high-temperature synthesis, materials processing and engineering, and so forth, which require rapid, contactless temperature monitoring at extreme conditions.
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Affiliation(s)
- Marcin Runowski
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
- . Phone: 0048618291778
| | - Przemysław Woźny
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
| | - Natalia Stopikowska
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
| | - Inocencio R. Martín
- Departamento de Física, MALTA Consolider Team,
IMN and IUdEA, Universidad de La Laguna, Apdo. Correos 456, E-38200 San Cristóbal de
La Laguna, Santa Cruz de Tenerife, Spain
| | - Víctor Lavín
- Departamento de Física, MALTA Consolider Team,
IMN and IUdEA, Universidad de La Laguna, Apdo. Correos 456, E-38200 San Cristóbal de
La Laguna, Santa Cruz de Tenerife, Spain
| | - Stefan Lis
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
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- M, Jain M, Vashishtha P, Gupta G, Sharma A, Von SO, Vij A, Thakur A. Switchable cool and cold white emission from dysprosium doped SrZnO 2. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2020; 33:035703. [PMID: 32992301 DOI: 10.1088/1361-648x/abbc9c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In presented work, excitation selective novel cool and cold white emission is reported from dysprosium (Dy) doped SrZnO2nanophosphors, synthesized by combustion technique. The host lattice provided selective excitation routes for Dy3+levels and intrinsic defects levels via charge transfer (270 nm) and host defects absorption bands (375 nm), respectively. The emission due to Dy3+levels was found to be exhibiting cool white emission and that from intrinsic defects was cold white emission, as characterized from correlated color temperature. UV irradiated glow curve analysis complemented the results by exhibiting signal due to Dy assisted traps on near UV exposure (254 nm) and that of host related traps at far UV exposure (365 nm). The luminescence phenomenon is comprehended through proposed band model. The obtained results proclaimed SrZnO2:Dy as a potential member among white emitting phosphors to be used as standard daylight sources in commercial and aesthetic lighting.
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Affiliation(s)
- Manju -
- Punjabi University, Patiala, Punjab, INDIA
| | - Megha Jain
- Punjabi University, Patiala, Punjab, INDIA
| | | | | | - Aditya Sharma
- Advanced Analysis Centre, Manav Rachna International University, Faridabad, Haryana, INDIA
| | - Sung Ok Von
- Korea Institute of Science and Technology, Seongbuk-gu, Seoul, Korea (the Republic of)
| | - Ankush Vij
- Nano Analysis Centre Beam-line Division Pohang Accelerator Lab, Amity University Haryana, Gurgaon, Haryana, INDIA
| | - Anup Thakur
- Basic & Applied Sciences, Punjabi University, Patiala, 147002, INDIA
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22
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Medvedev VA, Mamonova DV, Kolesnikov IE, Khokhlova AR, Mikhailov MD, Manshina AA. Synthesis and luminescence properties of YVO4: Nd3+, Er3+ and Tm3+ nanoparticles. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2020.107990] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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23
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Luminescence Quenching Behavior of Hydrothermally Grown YVO 4:Eu 3+ Nanophosphor Excited under Low Temperature and Vacuum Ultra Violet Discharge. MATERIALS 2020; 13:ma13153270. [PMID: 32717897 PMCID: PMC7435471 DOI: 10.3390/ma13153270] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 07/20/2020] [Accepted: 07/22/2020] [Indexed: 11/24/2022]
Abstract
The luminescence quenching behavior and energy transfer process in hydrothermally grown Eu3+-doped YVO4 nanophosphors were studied using low temperature photoluminescence spectroscopy. The luminescence efficiency of nanophosphor is dependent on the acidity of its solution media and the post annealing condition after hydrothermal processing. The overall results suggest that the abnormal luminescence behavior of Eu3+-doped nanocrystalline YVO4 under low temperature photoexcitation is due to the incorporated non-radiative hydroxyl groups often encountered in hydrothermal synthesis as well as to the inefficient energy transfer to luminescent ions from vanadate groups.
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Kaczmarek AM, Liu Y, Kaczmarek MK, Liu H, Artizzu F, Carlos LD, Van Der Voort P. Developing Luminescent Ratiometric Thermometers Based on a Covalent Organic Framework (COF). Angew Chem Int Ed Engl 2020; 59:1932-1940. [DOI: 10.1002/anie.201913983] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Indexed: 11/11/2022]
Affiliation(s)
- Anna M. Kaczmarek
- Department of ChemistryGhent University Krijgslaan 281-S3 9000 Ghent Belgium
| | - Ying‐Ya Liu
- State Key Laboratory of Fine ChemicalsDalian University of Technology 116024 Dalian P. R. China
| | - Mariusz K. Kaczmarek
- Institute of Mechanics and Applied Computer ScienceKazimierz Wielki University in Bydgoszcz Kopernika 1 85-074 Bydgoszcz Poland
| | - Hengshuo Liu
- State Key Laboratory of Fine ChemicalsDalian University of Technology 116024 Dalian P. R. China
| | - Flavia Artizzu
- Department of ChemistryGhent University Krijgslaan 281-S3 9000 Ghent Belgium
| | - Luís D. Carlos
- Departamento de Fisica and CICECO—Aveiro Institute of MaterialsUniversidade de Aveiro 3810-193 Aveiro Portugal
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Kaczmarek AM, Liu Y, Kaczmarek MK, Liu H, Artizzu F, Carlos LD, Van Der Voort P. Developing Luminescent Ratiometric Thermometers Based on a Covalent Organic Framework (COF). Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201913983] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Anna M. Kaczmarek
- Department of ChemistryGhent University Krijgslaan 281-S3 9000 Ghent Belgium
| | - Ying‐Ya Liu
- State Key Laboratory of Fine ChemicalsDalian University of Technology 116024 Dalian P. R. China
| | - Mariusz K. Kaczmarek
- Institute of Mechanics and Applied Computer ScienceKazimierz Wielki University in Bydgoszcz Kopernika 1 85-074 Bydgoszcz Poland
| | - Hengshuo Liu
- State Key Laboratory of Fine ChemicalsDalian University of Technology 116024 Dalian P. R. China
| | - Flavia Artizzu
- Department of ChemistryGhent University Krijgslaan 281-S3 9000 Ghent Belgium
| | - Luís D. Carlos
- Departamento de Fisica and CICECO—Aveiro Institute of MaterialsUniversidade de Aveiro 3810-193 Aveiro Portugal
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Sensors for optical thermometry based on luminescence from layered YVO 4: Ln 3+ (Ln = Nd, Sm, Eu, Dy, Ho, Er, Tm, Yb) thin films made by atomic layer deposition. Sci Rep 2019; 9:10247. [PMID: 31308425 PMCID: PMC6629663 DOI: 10.1038/s41598-019-46694-8] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 06/25/2019] [Indexed: 11/08/2022] Open
Abstract
Below the Earth’s crust, temperatures may reach beyond 600 K, impeding the batteries used to power conventional thermometers. Fluorescence intensity ratio based temperature probes can be used with optical fibers that can withstand these conditions. However, the probes tend to exhibit narrow operating ranges and poor sensitivity above 400 K. In this study, we have investigated single and dual layered YVO4: Ln3+ (Ln = Nd, Sm, Eu, Dy, Ho, Er, Tm, Yb) thin films (100–150 nm) for use in fluorescence intensity ratio based temperature sensors in the 300–850 K range. The type of lanthanide emission can be fine-tuned by adjusting the thickness of each layer, and the layered structure allows for emission from otherwise incompatible lanthanide pairs. This novel multi-layered approach enables high sensitivity over a broad temperature range. The highest relative sensitivity was achieved for a dual layered YVO4: Eu3+/YVO4: Dy3+ sample, exhibiting a maximum sensitivity of 3.6% K−1 at 640 K. The films were successfully deposited on all tested substrates (silicon, iron, aluminum, glass, quartz, and steel), and can be applied homogenously to most surfaces without the use of binders. The films are unaffected by water, enabling non-contact temperature sensing in water, where IR thermometers are not an option.
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