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Chen JZ, Zhang Y, Liu M, Ma Y, Shen ZQ, Mi JX, Wang SH, Wu SF, Huang YX. Two Noncentrosymmetric Bismuth Phosphates: Rational Design Synthesis and Optical Properties. Inorg Chem 2023; 62:14431-14438. [PMID: 37622651 DOI: 10.1021/acs.inorgchem.3c02300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/26/2023]
Abstract
Developing strategies to rational design noncentrosymmetric structure still attract much interest for their applications in nonlinear optical and piezoelectric materials. Two noncentrosymmetric (NCS) alkaline earth metal bismuth phosphates have been successfully achieved via partial replacement of Bi3+ with Ca2+ or Sr2+ ions. BiCa(H0.5PO4)2 (designated as CaBiPO) and BiSr(H0.5PO4)2 (designated as SrBiPO), together with their solid solution Bi(Sr1-xCax)(H0.5PO4)2 (0 < x ≤ 0.5), crystallize in the NCS space group C2. Both CaBiPO and SrBiPO exhibit ultraviolet nonlinear optical (NLO) properties, and their second-harmonic generation effects belong to type-II phase matching. Meanwhile, they could also act as photoluminescence hosts in which the Eu3+-doping samples SrBiPO:xEu3+ (x = 0.02-0.2) emit orange light. The effect of different radius ions on the derivative structures and the structure-NLO property relationship has also been discussed in detail.
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Affiliation(s)
- Jia-Ze Chen
- College of Materials, Xiamen University, Xiamen 361005, China
| | - Yu Zhang
- College of Materials, Xiamen University, Xiamen 361005, China
| | - Mingfeng Liu
- College of Materials, Xiamen University, Xiamen 361005, China
| | - Yao Ma
- College of Materials, Xiamen University, Xiamen 361005, China
| | - Zhen-Qiang Shen
- College of Materials, Xiamen University, Xiamen 361005, China
| | - Jin-Xiao Mi
- College of Materials, Xiamen University, Xiamen 361005, China
| | - Shuai-Hua Wang
- Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
| | - Shao-Fan Wu
- Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
| | - Ya-Xi Huang
- College of Materials, Xiamen University, Xiamen 361005, China
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2
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Balhara A, Gupta SK, Debnath AK, Sudarshan K. Utilizing Energy Transfer in Mn 2+/Ho 3+/Yb 3+ Tri-doped ZnAl 2O 4 Nanophosphors for Tunable Luminescence and Highly Sensitive Visual Cryogenic Thermometry. ACS OMEGA 2023; 8:30459-30473. [PMID: 37636912 PMCID: PMC10448494 DOI: 10.1021/acsomega.3c03629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 07/28/2023] [Indexed: 08/29/2023]
Abstract
Lanthanide (Ln3+)-doped upconversion (UC) phosphors converting near-infrared (NIR) light to visible light hold very high promise toward biomedical applications. The scientific findings on luminescent thermometers revealed their superiority for noninvasive thermal sensing. However, only few reports showcase their potential for applications in extreme conditions (temperatures below -70 °C) restricted by low thermal sensitivity. Here, we demonstrate the tailoring of luminescence properties via introducing Ho3+-Mn2+ energy transfer (ET) routes with judicious codoping of Mn2+ ions in ZnAl2O4/Ho3+,Yb3+ phosphor. Preferentially, a singular red UC emission is required to improve the bioimaging sensitivity and minimize tissue damage. We could attain UC emission with 94% red component by a two-photon UC process. Higher temperature annealing brings the color coordinates to the green domain, highlighting the potential for color-tunable luminescence switch. Moreover, this work investigates the thermometric properties of ZnAl2O4/Yb3+, Ho3+ in the range of 80-300 K and influence of inducing extra ET pathways by Mn2+ codoping. Interestingly, the luminescence intensities for nonthermally coupled (5F4,5S2) and the 5F5 radiative transitions of Ho3+ ions display opposite behavior at 80 and 300 K, which revealed competition between temperature-sensitive decay pathways. The codoping of Mn2+ ions is fruitful in causing a fourfold increase of absolute sensitivity. Notably, the color tunability from green through yellow to red is helpful in rough temperature estimation by naked eyes. The maximum relative (Sr) and absolute sensitivities (Sa) were estimated to be 1.89% K-1 (140 K) and 0.0734 K-1 (300 K), respectively. Even at 80 K, a Sa of 0.00447 K-1 and Sr of 0.6025% K-1 were achievable in our case, which are higher than most of the other Ln3+-based systems. The above-mentioned results demonstrate the potential of ZnAl2O4/Yb3+,Ho3+ for cryogenic optical thermometry and a strategy to design new Ln3+-based UC thermometers by taking advantage of ET routes.
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Affiliation(s)
- Annu Balhara
- Homi
Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
- Radiochemistry
Division, Bhabha Atomic Research Centre,Trombay, Mumbai 400085, India
| | - Santosh Kumar Gupta
- Homi
Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
- Radiochemistry
Division, Bhabha Atomic Research Centre,Trombay, Mumbai 400085, India
| | - Anil Krishna Debnath
- Homi
Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
- Technical
Physics Division, Bhabha Atomic Research
Centre, Trombay, Mumbai 400085, India
| | - Kathi Sudarshan
- Homi
Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
- Radiochemistry
Division, Bhabha Atomic Research Centre,Trombay, Mumbai 400085, India
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3
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Marques de Souza JM, Lima KDO, Ferrari JL, Maia LJQ, Rocha Gonçalves R, Falci RF, Manzani D. Photoluminescence properties of Er 3+ and Er 3+/Yb 3+ doped tellurite glass and glass-ceramics containing Bi 2Te 4O 11 crystals. Dalton Trans 2022; 51:4087-4096. [PMID: 35179526 DOI: 10.1039/d1dt04097a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Glass and glass-ceramics containing nanocrystals of Bi2Te4O11 cubic phase co-doped with Er3+ and Yb3+ were prepared by heat treatment of the precursor tellurite glass and investigated for optical applications. Lanthanide doped tellurite glass and glass-ceramics have been extensively investigated because of their optical and photoluminescence performance for technological photonic applications. Er3+ and Er3+/Yb3+ doped TeO2-GeO2-K2O-Bi2O3 tellurite glass compositions were prepared by the conventional melt-quenching method. Photoluminescence results showed the important role played by Yb3+ ions when co-doping with Er3+ ions in comparison with the Er3+ single-doped glass. Due to their larger absorption cross-section, Yb3+ species significantly absorbs 980 nm photons and effectively transfers them to Er3+ ions via a set of mechanisms including ground-state absorption (GSA), excited-state absorption (ESA), and energy transfer upconversion (ETU). Er3+/Yb3+ co-doped sample was chosen for the synthesis of transparent glass-ceramics by controlled heat treatment above Tg for 5 to 120 min. X-ray diffraction patterns, high-resolution transmission electron microscopy (TEM) images, and selected area electron diffraction (SAED) from Er3+/Yb3+ co-doped glass-ceramic samples were used to verify the nanocrystal precipitation, crystalline phase, and chemical nature. The structural change resulting from the crystallization of Bi2Te4O11 nanocrystals was evaluated by the Raman shift of the bands between 300-500 cm-1, which are assigned to the formation of Bi-O-Te linkages and the reduction of [TeO3] depolymerized units. The effects of HT time on the glass-ceramic's optical and upconversion photoluminescence properties were studied in the visible range under excitation at 980 nm in terms of the energy transfer mechanisms from Yb3+ to Er3+. Results indicate that Er3+/Yb3+ co-doped tellurite glass and glass-ceramics are potential candidates for photonic applications in lighting, energy conversion, and luminescent solar cell concentrators.
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Affiliation(s)
| | | | | | | | | | | | - Danilo Manzani
- São Carlos Institute of Chemistry, University of São Paulo, IQSC-USP, São Carlos, SP, Brazil.
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4
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Perala R, Singh BP, Putta VN, Acharya R, Ningthoujam RS. Enrichment of Crystal Field Modification via Incorporation of Alkali K + Ions in YVO 4:Ho 3+/Yb 3+ Nanophosphor and Its Hybrid with Superparamagnetic Iron Oxide Nanoparticles for Optical, Advanced Anticounterfeiting, Uranyl Detection, and Hyperthermia Applications. ACS OMEGA 2021; 6:19517-19528. [PMID: 34368538 PMCID: PMC8340087 DOI: 10.1021/acsomega.1c01813] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Accepted: 05/25/2021] [Indexed: 05/13/2023]
Abstract
In this work, we report a polyol route for easy synthesis of upconversion (UC) phosphor nanoparticles, YVO4:Ho3+-Yb3+-K+, which enables large-scale production and enhancement of luminescence. Upon 980 nm laser excitation, the UC emission spectrum shows a sharp bright peak at ∼650 nm of Ho3+ ion; and the luminescence intensity increases twofold upon K+ codoping. Upon 300 nm excitation, the downconversion emission spectrum shows a broad peak in the 400-500 nm range (related to the charge transfer band of V-O) along with Ho3+ peaks. In addition, the polyethylene glycol-coated UC nanoparticles are highly water-dispersible and their hybrid with Fe3O4 nanoparticles shows magnetic-luminescence properties. A hyperthermia temperature is achieved from this hybrid. Both UC and hybrid nanoparticles show interesting security ink properties upon excitation by a 980 nm laser. The particles are invisible in normal light but visible upon 980 nm excitation and are useful in display devices, advanced anticounterfeiting purposes, and therapy of cancer via hyperthermia and bioimaging (since it shows red emission at ∼650 nm). Using UC nanoparticles, detection of uranyl down to 20 ppm has been achieved.
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Affiliation(s)
- Ramaswamy
Sandeep Perala
- Department
of Chemistry, GITAM University, Hyderabad 502329, India
- Chemistry
Division, Bhabha Atomic Research Centre, Mumbai 400085, India
- Radiochemistry
Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - Bheeshma Pratap Singh
- Chemistry
Division, Bhabha Atomic Research Centre, Mumbai 400085, India
- . Tel.: +91-22-25592321
| | | | - Raghunath Acharya
- Radiochemistry
Division, Bhabha Atomic Research Centre, Mumbai 400085, India
- Homi
Bhabha National Institute, Mumbai 400094, India
- . Tel.: +91-22-25594590
| | - Raghumani Singh Ningthoujam
- Chemistry
Division, Bhabha Atomic Research Centre, Mumbai 400085, India
- Homi
Bhabha National Institute, Mumbai 400094, India
- . Tel.: +91-22-25592321
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5
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Perala R, Joshi R, Singh BP, Putta VNK, Acharya R, Ningthoujam RS. Brilliant Nonlinear Optical Response of Ho 3+ and Yb 3+ Activated YVO 4 Nanophosphor and Its Conjugation with Fe 3O 4 for Smart Anticounterfeit and Hyperthermia Applications. ACS OMEGA 2021; 6:19471-19483. [PMID: 34368534 PMCID: PMC8340094 DOI: 10.1021/acsomega.1c01572] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Accepted: 06/30/2021] [Indexed: 06/13/2023]
Abstract
YVO4:Ho3+/Yb3+ nanophosphors prepared by an effective polyol-mediated route show dual-mode behavior in photoluminescence. Upon 980 nm excitation, the upconversion red emission spectrum exhibits a bright red peak at ∼650 nm, characteristic of the electronic transition of the Ho3+ ion via involvement of two-photon absorption, which has been confirmed by the power-dependent luminescence study. Moreover, at 300 nm excitation, downconversion emission peaks are observed at 550, 650, and ∼755 nm. The nonradiative resonant energy transfer occurs from the V-O charge transfer band to Ho3+ ions, resulting in an improved emission of Ho3+ ions. Moreover, polyethylene glycol-coated nanoparticles make it suitable for water dispersibility; and these particles are conjugated with Fe3O4 nanoparticles to form magnetic-luminescent hybrid nanoparticles. Highly water-dispersible magnetic-luminescent hybrid material attained the hyperthermia temperature (∼42 °C) under an applied AC magnetic field. The specific absorption rate value is found to be high (138 W/g), which is more than that of pure superparamagnetic Fe3O4 nanoparticles. At 300 nm excitation, the high quantum yield value of ∼27% is obtained from YVO4:Ho3+/Yb3+, which suggests that it is a good phosphor material. By employing the neutron activation analysis technique, it is shown that nanophosphor particles can absorb Au3+ up to the ppm level. Interestingly, such nanophosphor also shows the potentiality for anticounterfeiting applications.
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Affiliation(s)
- Ramaswamy
Sandeep Perala
- Department
of Chemistry, GITAM University, Hyderabad 502329, India
- Chemistry
Division, Bhabha Atomic Research Centre, Mumbai 400085, India
- Radiochemistry
Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - Rashmi Joshi
- Chemistry
Division, Bhabha Atomic Research Centre, Mumbai 400085, India
- Homi
Bhabha National Institute, Mumbai 400094, India
| | | | | | - Raghunath Acharya
- Radiochemistry
Division, Bhabha Atomic Research Centre, Mumbai 400085, India
- Homi
Bhabha National Institute, Mumbai 400094, India
| | - Raghumani Singh Ningthoujam
- Chemistry
Division, Bhabha Atomic Research Centre, Mumbai 400085, India
- Homi
Bhabha National Institute, Mumbai 400094, India
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6
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Liu W, Zhang W, Li G, Liu R. Dual mode emissions with enhanced green up-conversion luminescence by Gd 3+ doping and down-conversion from Eu 3+ in NaMnF 3:Yb,Er@NaGdF 4:Eu. Dalton Trans 2021; 50:10243-10251. [PMID: 34241607 DOI: 10.1039/d1dt01384j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
NaMnF3:Yb,Er and NaMnF3:Yb,Er@NaGdF4:xEu (x = 0, 0.3, 0.6, and 0.9) samples were synthesized by a simple hydrothermal method. The as-obtained NaMnF3:Yb,Er particles show a single red emission under the irradiation of infrared light (980 nm), due to the energy exchange transfer process between Mn2+ ions and Er3+ ions. Notably, further growth of NaGdF4:Eu on the basis of NaMnF3:Yb,Er enhanced the green up-conversion luminescence of Er3+ ions, which gradually shifted from red to green with the increase of the Gd3+ ion doping amount. In addition, NaMnF3:Yb,Er@NaGdF4:Eu exhibits red color under ultraviolet excitation (397 nm). These results provide a possible means for controlling the luminescence properties of the lanthanide doped up-conversion system. The luminescent film synthesized with NaMnF3:Yb,Er@NaGdF4:Eu can show different luminescent colors under different light irradiation (near infrared and ultraviolet), which indicates that they have potential applications in multi-mode anti-counterfeiting.
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Affiliation(s)
- Wenjing Liu
- School of Chemical Engineering, Hebei University of Technology, Tianjin, 300130, China.
| | - Wenjun Zhang
- School of Chemical Engineering, Hebei University of Technology, Tianjin, 300130, China.
| | - Guojing Li
- School of Chemical Engineering, Hebei University of Technology, Tianjin, 300130, China.
| | - Ruxin Liu
- School of Chemical Engineering, Hebei University of Technology, Tianjin, 300130, China.
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7
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Zhang X, Wu J, Wang P, Gao J, Gao F, Gao D. Enhancing the static green up-conversion luminescence of NaY(MoO 4) 2:Yb/Er microcrystals via an annealing strategy for anti-counterfeiting applications. Dalton Trans 2021; 50:7826-7834. [PMID: 34008674 DOI: 10.1039/d1dt00948f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The majority of the fabrication procedures of lanthanide-doped materials involve thermal treatment that often results in crystallite regrowth, stabilizing the specific crystal structure and resulting in luminescence enhancement. The efficiency and intensity of up-conversion luminescence are closely related to the structure and synthesis process of the materials. Herein, well-crystallized and pure tetragonal NaY(MoO4)2 microcrystals with a uniform octahedral shape have been successfully synthesized via an environmentally friendly hydrothermal method, followed by annealing treatment. The phases, structures, morphologies, and compositions of the synthesized products annealed at 500-1000 °C remain unchanged, indicating high thermal stability. Furthermore, the NaY(MoO4)2:Yb3+/Er3+ microcrystals exhibit strong green emission when irradiated using infrared (980 nm) or ultraviolet (378 nm) wavelengths. Upon 980 nm excitation, up to 37-fold luminescence enhancement is achieved when the samples are annealed at about 700 °C. Interestingly, the high colour purity of the strong green emission is not only independent of the dopant concentration and heat treatment temperature, but it is also independent of the excitation conditions, including power and wavelength, and this makes it particularly suitable as a green safety signal light and luminescent security ink in paintings. As-prepared safety inks with NaY(MoO4)2:Yb3+/Er3+ microcrystals were used for visual fingerprint recognition printed on A4 paper with three-level fingerprint security features, significantly increasing the difficulty of illegal imitation and enhancing the levels of anti-counterfeiting.
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Affiliation(s)
- Xiangyu Zhang
- College of Science, Chang'an University, Xi'an 710064, China
| | - Jialing Wu
- College of Science, Xi'an University of Architecture and Technology, Xi'an 710055, China.
| | - Peng Wang
- College of Science, Xi'an University of Architecture and Technology, Xi'an 710055, China.
| | - Jie Gao
- College of Science, Xi'an University of Architecture and Technology, Xi'an 710055, China.
| | - Feng Gao
- College of Science, Xi'an University of Architecture and Technology, Xi'an 710055, China.
| | - Dangli Gao
- College of Science, Xi'an University of Architecture and Technology, Xi'an 710055, China.
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8
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Ren X, Gao J, Shi H, Zhao S, Huang L, Xu S. A flexible and portable all-fiber temperature sensor based on the upconversion luminescence of octahedral NaBi(WO 4) 2:Er 3+/Yb 3+ phosphors. Dalton Trans 2021; 50:917-925. [PMID: 33351006 DOI: 10.1039/d0dt03762a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Octahedral NaBi(WO4)2:Er3+/Yb3+ phosphors were synthesized by a hydrothermal method. Intense green upconversion emissions from both 2H11/2 → 4I15/2 and 4S3/2 → 4I15/2 transitions of Er3+ ions were observed and the appropriate energy gap between them is very suitable for temperature sensing requirement based on the fluorescence intensity ratio (FIR) technique. A flexible and portable all-fiber temperature sensing device was established and used to assess the temperature sensing characteristics of NaBi(WO4)2:Er3+Yb3+ phosphors. A maximum absolute sensitivity of 0.014 K-1 is achieved at 423 K and the temperature absolute error is -0.5 K to +0.6 K. The stepwise heating and cooling processes confirm the good stability and recyclability of the all-fiber temperature sensor, which lays the foundation for actual temperature measurement. Based on the high flexibility and accuracy of the temperature sensor, the monitoring of body temperature was realized in real time and continuously, which may provide new development prospects for effective health tracking and improvement of medical care quality.
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Affiliation(s)
- Xiaotong Ren
- Institute of Optoelectronic Materials and Devices, China Jiliang University, Hangzhou 310018, China. and College of Materials and Chemistry, China Jiliang University, Hangzhou 310018, China
| | - Jia Gao
- College of Materials and Chemistry, China Jiliang University, Hangzhou 310018, China
| | - Haonan Shi
- Institute of Optoelectronic Materials and Devices, China Jiliang University, Hangzhou 310018, China. and College of Materials and Chemistry, China Jiliang University, Hangzhou 310018, China
| | - Shilong Zhao
- Institute of Optoelectronic Materials and Devices, China Jiliang University, Hangzhou 310018, China. and College of Optical and Electronic Technology, China Jiliang University, Hangzhou 310018, China
| | - Lihui Huang
- Institute of Optoelectronic Materials and Devices, China Jiliang University, Hangzhou 310018, China. and College of Optical and Electronic Technology, China Jiliang University, Hangzhou 310018, China
| | - Shiqing Xu
- Institute of Optoelectronic Materials and Devices, China Jiliang University, Hangzhou 310018, China. and College of Optical and Electronic Technology, China Jiliang University, Hangzhou 310018, China
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9
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Liu W, Zhang W, Liu R, Li G. Up-conversion of lanthanide ions and down-conversion defect luminescence in BaGdF 5:Yb,Er/Tm for application in anti-counterfeiting. NEW J CHEM 2021. [DOI: 10.1039/d1nj03262c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
BaGdF5:Yb,Er/Tm was prepared using a one-pot hydrothermal method, and the anti-counterfeiting patterns obtained by screen printing have dual-mode luminescence.
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Affiliation(s)
- Wenjing Liu
- School of Chemical Engineering, Hebei University of Technology, Tianjin, 300130, China
| | - Wenjun Zhang
- School of Chemical Engineering, Hebei University of Technology, Tianjin, 300130, China
| | - Ruxin Liu
- School of Chemical Engineering, Hebei University of Technology, Tianjin, 300130, China
| | - Guojing Li
- School of Chemical Engineering, Hebei University of Technology, Tianjin, 300130, China
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Wang M, Wang C, Wang J, Lu L, Gong X, Tang X, Zhang F, You J. Temperature-Dependent Raman Spectroscopic Study of the Double Molybdate KBi(MoO 4) 2. MATERIALS (BASEL, SWITZERLAND) 2020; 13:ma13235453. [PMID: 33266098 PMCID: PMC7729462 DOI: 10.3390/ma13235453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 11/15/2020] [Accepted: 11/25/2020] [Indexed: 06/12/2023]
Abstract
In situ high-temperature Raman spectra of polycrystalline KBi(MoO4)2 were recorded from room temperature to 1073 K. Thermal stability of the monoclinic KBi(MoO4)2 was examined by temperature-dependent XRD. The monoclinic phase transformed into the scheelite tetragonal structure at 833 K, and then to the monoclinic phase at 773 K. Quantum chemistry ab initio calculation was performed to simulate the Raman spectra of the structure of KBi(MoO4)2 high-temperature melt. The experimental Raman band at 1023 K was deconvoluted into seven Gaussian peaks, and the calculated results were in good agreement with the experimental data. Therefore, the vibrational modes of Raman peaks of molten KBi(MoO4)2 were assigned. It was confirmed that the isolated structure of [Bi(MoO4)2]- monomer, consisting of Mo6+ centers and Bi3+ sub-centers connected by edge-sharing, mainly exists in the melt of KBi(MoO4)2.
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Affiliation(s)
- Min Wang
- State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China; (M.W.); (J.W.); (X.G.); (X.T.); (F.Z.)
| | - Changhao Wang
- Key Laboratory of Infrared Imaging Materials and Detectors, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China;
| | - Jian Wang
- State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China; (M.W.); (J.W.); (X.G.); (X.T.); (F.Z.)
| | - Liming Lu
- CSIRO Mineral Resources, Technology Court, Pullenvale, QLD 4069, Australia;
| | - Xiaoye Gong
- State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China; (M.W.); (J.W.); (X.G.); (X.T.); (F.Z.)
| | - Xiaohui Tang
- State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China; (M.W.); (J.W.); (X.G.); (X.T.); (F.Z.)
| | - Fu Zhang
- State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China; (M.W.); (J.W.); (X.G.); (X.T.); (F.Z.)
| | - Jinglin You
- State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China; (M.W.); (J.W.); (X.G.); (X.T.); (F.Z.)
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11
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Zhang Y, Gao Z, Li Y, Pun EYB, Lin H. The thermo-optic relevance of Ho 3+ in fluoride microcrystals embedded in electrospun fibers. RSC Adv 2020; 10:41004-41012. [PMID: 35519182 PMCID: PMC9057727 DOI: 10.1039/d0ra08696g] [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: 10/12/2020] [Accepted: 10/27/2020] [Indexed: 11/21/2022] Open
Abstract
Na(Y1−x−yHoxYby)F4/PAN (NYF-HY/PAN) composite fibers were synthesized using an electrospinning method, and the sub-micron crystals embedded in the fibers had complete hexagonal crystal structures. Under 977 nm laser excitation, strong green and red up-conversion (UC) emission that originated from flexible fibers were due to the radiative transitions (5F4, 5S2) → 5I8 and 5F5 → 5I8 of Ho3+, respectively. The effective green fluorescence emission (539 and 548 nm) can be applied to micro-domain non-contact temperature measurements, realizing rapid and dynamic temperature acquisition in a complex environment without destroying the temperature field. In the temperature range of 313–393 K, the absolute and relative sensitivity of the fibers are 0.00373 K−1 and 0.723% K−1, respectively, which indicates that the NYF-HY/PAN composite fibers have good thermal sensitivity. Composite fibers in which crystallites are embedded have superior properties, with great stability, high sensitivity, and excellent flexibility, providing a reliable reference for developing temperature-sensing materials for the biomedical field. The morphology of electrospun fibers embedded with microcrystals and the relationship between sensitivity and temperature based on green up-conversion emission are studied.![]()
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Affiliation(s)
- Yan Zhang
- School of Textile and Material Engineering, Dalian Polytechnic University Dalian 116034 China
| | - Zelin Gao
- School of Textile and Material Engineering, Dalian Polytechnic University Dalian 116034 China
| | - Yue Li
- Department of Electrical Engineering and State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong Tat Chee Avenue Kowloon Hong Kong China
| | - Edwin Yue Bun Pun
- Department of Electrical Engineering and State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong Tat Chee Avenue Kowloon Hong Kong China
| | - Hai Lin
- School of Textile and Material Engineering, Dalian Polytechnic University Dalian 116034 China .,Department of Electrical Engineering and State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong Tat Chee Avenue Kowloon Hong Kong China
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12
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Kuang Y, Li T, Jia T, Gulzar A, Zhong C, Gai S, He F, Yang P, Lin J. Insight into the Luminescence Alternation of Sub-30 nm Upconversion Nanoparticles with a Small NaHoF 4 Core and Multi-Gd 3+ /Yb 3+ Coexisting Shells. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2003799. [PMID: 33006248 DOI: 10.1002/smll.202003799] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 07/24/2020] [Indexed: 06/11/2023]
Abstract
It is absolutely imperative for development of material science to adjust upconversion luminescence (UCL) properties of highly doped upconversion nanoparticles (UCNPs) with special optical properties and prominent application prospects. In this work, featuring NaHoF4 @NaYbF4 (Ho@Yb) structures, sub-30 nm core-multishell UCNPs are synthesized with a small NaHoF4 core and varied Gd3+ /Yb3+ coexisting shells. X-ray diffraction, transmission electron microscopy, UCL spectrum, UCL lifetime, and pump power dependence are adhibited for characterization. Compared with the former work, except for a smaller total size, tunable emission in color from red to yellow to green, and intensity from low to stronger than that of traditional UCNPs is achieved for ≈10 nm NaHoF4 core size by means of changing number of layers and Gd3+ /Yb3+ concentration ratios in different layers. Besides, simultaneously doping Ho3+ into the shells will result in lowered UCL intensity and lifted green/red ratio. Surface energy loss and sensitizing energy supply, which can be modulated with inert shielding of Gd3+ and sensitization of Yb3+ , are proved to be the essential determinant. More UCL properties of these peculiar Ho@Yb UCNPs are uncovered and detailedly summarized, and the findings can help to expand the application scope of NaHoF4 into photoinduced therapy.
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Affiliation(s)
- Ye Kuang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P. R. China
| | - Tianyao Li
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P. R. China
| | - Tao Jia
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P. R. China
| | - Arif Gulzar
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P. R. China
| | - Chongna Zhong
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P. R. China
| | - Shili Gai
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P. R. China
| | - Fei He
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P. R. China
| | - Piaoping Yang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P. R. China
| | - Jun Lin
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130021, P. R. China
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13
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Liu M, Zhang Y, Zou T, Garlea VO, Charlton T, Wang Y, Liu F, Xie Y, Li X, Yang L, Li B, Wang X, Dong S, Liu JM. Antiferromagnetism of Double Molybdate LiFe(MoO 4) 2. Inorg Chem 2020; 59:8127-8133. [PMID: 32484663 DOI: 10.1021/acs.inorgchem.0c00432] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The magnetic properties of the spin-5/2 double molybdate LiFe(MoO4)2 have been characterized by heat capacity, magnetic susceptibility, and neutron powder diffraction techniques. Unlike the multiferroic system LiFe(WO4)2 which exhibits two successive magnetic transitions, LiFe(MoO4)2 undergoes only one antiferromagnetic transition at TN ∼ 23.8 K. Its antiferromagnetic magnetic structure with the commensurate propagation vector k = (0, 0.5, 0) has been determined. Density functional theory calculations confirm the antiferromagnetic ground state and provide a numerical estimate of the relevant exchange coupling constants.
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Affiliation(s)
- Meifeng Liu
- Institute for Advanced Materials, Hubei Normal University, Huangshi 435002, China
| | - Yang Zhang
- School of Physics, Southeast University, Nanjing 211189, China
| | - Tao Zou
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - V Ovidiu Garlea
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Timothy Charlton
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Yu Wang
- Institute for Advanced Materials, Hubei Normal University, Huangshi 435002, China
| | - Fei Liu
- Institute for Advanced Materials, Hubei Normal University, Huangshi 435002, China
| | - Yunlong Xie
- Institute for Advanced Materials, Hubei Normal University, Huangshi 435002, China
| | - Xiang Li
- Institute for Advanced Materials, Hubei Normal University, Huangshi 435002, China
| | - Lun Yang
- Institute for Advanced Materials, Hubei Normal University, Huangshi 435002, China
| | - Biwen Li
- Institute for Advanced Materials, Hubei Normal University, Huangshi 435002, China
| | - Xiuzhang Wang
- Institute for Advanced Materials, Hubei Normal University, Huangshi 435002, China
| | - Shuai Dong
- School of Physics, Southeast University, Nanjing 211189, China
| | - Jun-Ming Liu
- Institute for Advanced Materials, Hubei Normal University, Huangshi 435002, China.,Laboratory of Solid State Microstructures and Innovative Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
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14
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Pushpendra, Kunchala RK, Kalia R, Naidu BS. Excitation dependent visible and NIR photoluminescence properties of Er 3+, Yb 3+ co-doped NaBi(MoO 4) 2 nanomaterials. RSC Adv 2020; 10:14525-14530. [PMID: 35497173 PMCID: PMC9051887 DOI: 10.1039/d0ra01272f] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Accepted: 03/30/2020] [Indexed: 12/14/2022] Open
Abstract
Due to the exceptional luminescence properties of lanthanide doped nanomaterials, they have applications in various field such as sensing, photocatalysis, solar cells, bio-imaging, therapy, diagnostics, anti-counterfeiting, latent fingerprint development, optical amplifiers, solid state lighting, etc. Here, we report the excitation dependent photoluminescence properties of Yb3+, Er3+ co-doped NaBi(MoO4)2 nanomaterials in both the visible and NIR regions upon UV, visible and NIR excitation. These photoluminescence properties show that strong energy transfer occurs from the host to the Yb3+, Er3+ ions. These materials show major emission bands at 530, 552 (green) and 656 nm (red) in the visible region and 1000 and 1534 nm in the NIR region. The intensity ratio between green and red bands is dependent on the excitation wavelength, whereas the intensity ratio of the 1000 and 1534 nm bands relies on the excitation wavelength and Er3+ doping concentration. These materials also exhibit host emission and upconversion luminescence properties in the visible region. Er3+, Yb3+ co-doped NaBi(MoO4)2 nanomaterials show excitation dependent photoluminescence properties in the visible and NIR regions upon excitation with UV, visible and NIR light.![]()
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Affiliation(s)
- Pushpendra
- Institute of Nano Science and Technology (INST) Phase 10, Sector 64 Mohali Punjab India-160062
| | - Ravi K Kunchala
- Institute of Nano Science and Technology (INST) Phase 10, Sector 64 Mohali Punjab India-160062
| | - Rimple Kalia
- Institute of Nano Science and Technology (INST) Phase 10, Sector 64 Mohali Punjab India-160062
| | - Boddu S Naidu
- Institute of Nano Science and Technology (INST) Phase 10, Sector 64 Mohali Punjab India-160062
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