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Fu H, Xu Z, Yang Z, Lei J. Low-potential anodic electrochemiluminescence of terbium metal-organic frameworks for selective microRNA-155 detection. Biosens Bioelectron 2024; 264:116675. [PMID: 39151262 DOI: 10.1016/j.bios.2024.116675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2024] [Revised: 08/12/2024] [Accepted: 08/13/2024] [Indexed: 08/19/2024]
Abstract
High excitation potential is recognized as a harmful factor for the biological activity of biomacromolecules, such as proteins and nucleic acids, in electrochemiluminescence (ECL) biosensing. Developing low-potential ECL luminophores is vital for improving ECL accuracy in actual sample sensing. In this work, based on porous metal-organic framework (MOF) structure with multiple active sites and energy transfer between the excited ligands and Ln nodes, we designed a series of Ln-MOFs and observed ECL emission at low potential, providing a novel method to realize low-potential ECL. The MOF nanoemitters were prepared using 1,3,5-tri (4-carboxyphenyl)benzene ligand and several lanthanide ions as nodes through mild hydrothermal reaction. Interestingly, strong ECL emission at +0.75 V of peak potential was observed in the ECL-potential curve of Tb-based MOF using 2,2',2″-nitrilotriethanol as coreactant, which was beneficial for reducing background interference in biosensing, and this ECL emission was attributed to the energy transfer between Tb and excited ligand. This low-potential ECL was then applied to construct an ECL biosensor with newly developed Cas12a-based method for selective detection of microRNA-155 without the help of strand displacement or reverse transcription. For this ECL system, the limit of detection was 0.78 nM, and the overall detection time was 2.5 h. The Ln-MOF nanoemitter provides a robust ECL platform to selectively detect various targets by integrating new bio-related techniques.
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Affiliation(s)
- Haomin Fu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Zhiyuan Xu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Zhou Yang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Jianping Lei
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China.
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2
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Zhao M, Ge Y, Li Y, Song X, Xia Z, Zhang X. Suppressed concentration quenching and tunable photoluminescence in Eu 2+-activated Rb 3Y(PO 4) 2 phosphors for full-spectrum lighting. LIGHT, SCIENCE & APPLICATIONS 2024; 13:266. [PMID: 39304645 DOI: 10.1038/s41377-024-01607-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2024] [Revised: 08/23/2024] [Accepted: 08/26/2024] [Indexed: 09/22/2024]
Abstract
Highly efficient inorganic phosphors are desirable for lighting-emitting diode light sources, and increasing the doping concentration of activators is a common approach for enhancing the photoluminescence quantum yield (PLQY). However, the constraint of concentration quenching poses a great challenge for improving the PLQY. Herein, we propose a fundamental design principle by separating activators and prolonging their distance in Eu2+-activated Rb3Y(PO4)2 phosphors to inhibit concentration quenching, in which different quenching rates are controlled by the Eu distribution at various crystallographic sites. The blue-violet-emitting Rb3Y(PO4)2:xEu (x = 0.1%-15%) phosphors, with the occupation of Rb1, Rb2 and Y sites by Eu2+, exhibit rapid luminescence quenching with optimum external PLQY of 10% due to multi-channel energy migration. Interestingly, as the Eu concentration increases above 20%, Eu2+ prefer to occupy the Rb1 and Y sites with separated polyhedra and large interionic distances, resulting in green emission with suppressed concentration quenching, achieving an improved external PLQY of 41%. Our study provides a unique design perspective for elevating the efficiency of Eu2+-activated phosphors toward high-performance inorganic luminescent materials for full-spectrum lighting.
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Affiliation(s)
- Ming Zhao
- Institute of Information Photonics Technology, School of Physics and Optoelectronic Engineering, Beijing University of Technology, Beijing, 10083, China
| | - Yeping Ge
- Institute of Information Photonics Technology, School of Physics and Optoelectronic Engineering, Beijing University of Technology, Beijing, 10083, China
| | - Yurong Li
- College of Materials Science and Engineering, Key Laboratory of Advanced Functional Materials, Education Ministry of China, Beijing University of Technology, Beijing, 10083, China
| | - Xiaoyan Song
- College of Materials Science and Engineering, Key Laboratory of Advanced Functional Materials, Education Ministry of China, Beijing University of Technology, Beijing, 10083, China
| | - Zhiguo Xia
- State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, Guangdong Engineering Technology Research and Development Center of Special Optical Fiber Materials and Devices, School of Physics and Optoelectronics, South China University of Technology, Guangzhou, 510641, China.
| | - Xinping Zhang
- Institute of Information Photonics Technology, School of Physics and Optoelectronic Engineering, Beijing University of Technology, Beijing, 10083, China.
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3
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Bokouende SS, Ward CL, Allen MJ. Understanding the Coordination Chemistry and Structural and Photophysical Properties of Eu II- and Sm II-Containing Complexes of Hexamethylhexacyclen and Noncyclic Tetradentate Amines. Inorg Chem 2024; 63:16991-17004. [PMID: 39238155 DOI: 10.1021/acs.inorgchem.4c02590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/07/2024]
Abstract
Ligands play a crucial role in supporting or stabilizing the divalent oxidation state of lanthanide metals. To expand the range of ligands used to chelate divalent lanthanide ions, we synthesized and studied the structural and photophysical properties of complexes of EuII and SmII with hexamethylhexacyclen, 1,1,4,7,10,10-hexamethyltriethylenetetramine, tris[2-(dimethylamino)ethyl]amine, and tris[2-(isopropylamino)ethyl]amine as supporting ligands. Coordination of hexamethylhexacyclen, an analogue of 18-crown-6, generates sterically crowded complexes of EuII and SmII that are either seven or eight coordinate and adopt a range of geometries that differ from those of their 18-crown-6 counterparts and from those of lanthanide-containing complexes with the acyclic tetradente tertiary amine ligands included in this report. The emission spectra of EuII(hexamethylhexacyclen) show a moderate sensitivity to counterion identity and are more red-shifted compared to those of complexes of EuII with 18-crown-6 and the hexamethylated aza derivative of 2.2.2-cryptand. In addition, the morphology of hexamethylhexacyclen in [LnI(hexamethylhexacyclen)]I was found to resemble that of thermally stable alkalides of the form [M(hexamethylhexacyclen)]Na- (M = K+ or Cs+), suggesting that hexamethylhexacyclen could be an interesting ligand for strongly reducing lanthanide ions.
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Affiliation(s)
| | - Cassandra L Ward
- Lumigen Instrument Center, Wayne State University, 5101 Cass Ave., Detroit, Michigan 48202, United States
| | - Matthew J Allen
- Department of Chemistry, Wayne State University, 5101 Cass Ave., Detroit, Michigan 48202, United States
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4
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Luo S, Xiao J, Ba H, Li X, Zhang P, Zhang S, Wang T, Liu Z, Xu X. High-Stability Near-Infrared Luminescent Glass Ceramic and Its Applications. ACS APPLIED MATERIALS & INTERFACES 2024; 16:45189-45196. [PMID: 39137356 DOI: 10.1021/acsami.4c09732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/15/2024]
Abstract
Near-infrared (NIR) light, valuable for its biological penetration and invisibility to the human eye, is a crucial tool in biomedicine, environmental monitoring, anticounterfeiting, and information encryption, yet traditional NIR luminescent materials are often unstable in humid conditions. Here, a highly stable MgGeO3:Mn2+ glass ceramic (GC) with NIR luminescence was successfully synthesized. As-obtained GC700 boasts exceptional luminescent capabilities and possesses abundant trap structures, enabling data inscription with a 405 nm laser and retrieval via laser/thermal excitation. Moreover, the emission peak of Mn2+ can be manipulated from 630 to 691 nm by increasing the annealing treatment temperature. With the harnessing of the effective NIR emission, stable carrier characteristics, and numerous trap structures, there is potential for application in information encryption. Accordingly, we explored the application of MgGeO3:Mn2+ GC (GC700 and GC800) samples in precious three-dimensional (3D) information storage and NIR mechanoluminescence (ML) for biological tissue imaging. These applications demonstrate the potential and versatility of electron-capturing NIR luminescent materials in a range of cutting-edge fields.
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Affiliation(s)
- Siyuan Luo
- Faculty of Materials Science and Engineering, Yunnan Joint International Laboratory of Optoelectronic Materials and Devices, Kunming University of Science and Technology, Kunming, Yunnan 650093, People's Republic of China
| | - Jianqiang Xiao
- Faculty of Materials Science and Engineering, Yunnan Joint International Laboratory of Optoelectronic Materials and Devices, Kunming University of Science and Technology, Kunming, Yunnan 650093, People's Republic of China
| | - Huaiqiang Ba
- Faculty of Materials Science and Engineering, Yunnan Joint International Laboratory of Optoelectronic Materials and Devices, Kunming University of Science and Technology, Kunming, Yunnan 650093, People's Republic of China
| | - Xin Li
- Faculty of Materials Science and Engineering, Yunnan Joint International Laboratory of Optoelectronic Materials and Devices, Kunming University of Science and Technology, Kunming, Yunnan 650093, People's Republic of China
| | - Peng Zhang
- Faculty of Materials Science and Engineering, Yunnan Joint International Laboratory of Optoelectronic Materials and Devices, Kunming University of Science and Technology, Kunming, Yunnan 650093, People's Republic of China
| | - Sheng Zhang
- Faculty of Materials Science and Engineering, Yunnan Joint International Laboratory of Optoelectronic Materials and Devices, Kunming University of Science and Technology, Kunming, Yunnan 650093, People's Republic of China
| | - Ting Wang
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu, Sichuan 610059, People's Republic of China
| | - Zhichao Liu
- Faculty of Materials Science and Engineering, Yunnan Joint International Laboratory of Optoelectronic Materials and Devices, Kunming University of Science and Technology, Kunming, Yunnan 650093, People's Republic of China
| | - Xuhui Xu
- Faculty of Materials Science and Engineering, Yunnan Joint International Laboratory of Optoelectronic Materials and Devices, Kunming University of Science and Technology, Kunming, Yunnan 650093, People's Republic of China
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Zhang X, Suo H, Guo Y, Chen J, Wang Y, Wei X, Zheng W, Li S, Wang F. Continuous tuning of persistent luminescence wavelength by intermediate-phase engineering in inorganic crystals. Nat Commun 2024; 15:6797. [PMID: 39122769 PMCID: PMC11316030 DOI: 10.1038/s41467-024-51180-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Accepted: 07/30/2024] [Indexed: 08/12/2024] Open
Abstract
Multicolor tuning of persistent luminescence has been extensively studied by deliberately integrating various luminescent units, known as activators or chromophores, into certain host compounds. However, it remains a formidable challenge to fine-tune the persistent luminescence spectra either in organic materials, such as small molecules, polymers, metal-organic complexes and carbon dots, or in doped inorganic crystals. Herein, we present a strategy to delicately control the persistent luminescence wavelength by engineering sub-bandgap donor-acceptor states in a series of single-phase Ca(Sr)ZnOS crystals. The persistent luminescence emission peak can be quasi-linearly tuned across a broad wavelength range (500-630 nm) as a function of Sr/Ca ratio, achieving a precision down to ~5 nm. Theoretical calculations reveal that the persistent luminescence wavelength fine-tuning stems from constantly lowered donor levels accompanying the modified band structure by Sr alloying. Besides, our experimental results show that these crystals exhibit a high initial luminance of 5.36 cd m-2 at 5 sec after charging and a maximum persistent luminescence duration of 6 h. The superior, color-tunable persistent luminescence enables a rapid, programable patterning technique for high-throughput optical encryption.
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Affiliation(s)
- Xin Zhang
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR, China
| | - Hao Suo
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR, China
- College of Physics Science & Technology, Hebei University, Baoding, 071002, China
| | - Yang Guo
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR, China
| | - Jiangkun Chen
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR, China
| | - Yu Wang
- College of Physics Science & Technology, Hebei University, Baoding, 071002, China
| | - Xiaohe Wei
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR, China
| | - Weilin Zheng
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR, China
| | - Shuohan Li
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR, China
| | - Feng Wang
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR, China.
- Hong Kong Institute for Clean Energy, City University of Hong Kong, Hong Kong SAR, China.
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6
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Balhara A, Gupta SK, Modak B, Annadata HV, Patra GD, Tyagi D, Ghosh B. Local Structure and Speciation-Driven UO 22+ → Sm 3+ Energy Transfer for Enhanced Luminescence in Li 2B 4O 7. Inorg Chem 2023. [PMID: 38033302 DOI: 10.1021/acs.inorgchem.3c03202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2023]
Abstract
Herein, we report the uranyl sensitization of Sm3+ emissions in uranium-codoped Li2B4O7:Sm3+ phosphor. The uranyl speciation in codoped [Sm, U] LTB samples was determined by synchrotron-based extended X-ray absorption fine structure (EXAFS) spectroscopy that revealed two coordination shells for U(VI) ions with bond distances of U-Oax (∼1.81 Å) and U-Oeq (∼2.30 Å). EXAFS fitting suggested that the uranyl moiety is present as pentagonal bipyramids (UO7) and hexagonal bipyramids (UO8) with five and six equatorial oxygen ligands, respectively. The alteration of the local structure of Sm3+ from [SmO4] to [SmO7] polyhedra and the changes in the coordination number of equatorial oxygen for uranyl were observed with different codoping concentrations of Sm3+ and uranium. Density functional theory (DFT) calculations suggested the lowering of defect formation energy for Li vacancies on codoping of Sm and U. Hence, we proposed the increase of the equatorial coordination number of UO22+ on the increase in the lithium vacancies in LTB. In addition, DFT supported the feasibility of efficient energy transfer (ET) due to the overlap of uranium and Sm3+ excited state levels. The influence of the same on the spectral features and UO22+ → Sm3+ energy transfer was investigated by time-resolved photoluminescence (PL) studies. The ET efficiency from the UO22+ to Sm3+ was 70.5% in 0.5 mol % codoped [Sm, U] LTB samples. The correlation of EXAFS and luminescence properties indicated a red shift in vibronic features of uranyl emission with increase in the equatorial coordination of the uranyl moiety from five to six. Additionally, a higher probability of ET was observed for uranyl speciation as UO8 hexagonal bipyramids. Temperature-dependent emissions and decay profiles were collected under uranyl excitation to investigate the thermal dependence of ET. A high energy barrier (Ea ∼ 4027 cm-1) was evaluated for the thermal quenching of Sm3+ emissions. This work provides insights into the modulation of luminescence and ET efficiency via structural changes in uranyl and Sm local environment in LTB phosphor.
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Affiliation(s)
- Annu Balhara
- Radiochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
| | - Santosh K Gupta
- Radiochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
| | - Brindaban Modak
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
- Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - Harshini V Annadata
- Beamline Development & Application Section, Bhabha Atomic Research Center, Mumbai 400085, India
| | - Giri Dhari Patra
- Technical Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - Deepak Tyagi
- Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - Biplab Ghosh
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
- Beamline Development & Application Section, Bhabha Atomic Research Center, Mumbai 400085, India
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7
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Yang X, Qaid SMH, Wang B, Cai W, Qian Q, Zang Z. Broadband Near-Infrared Emission from 0D Hybrid Copper Halides. Inorg Chem 2023; 62:18591-18598. [PMID: 37916511 DOI: 10.1021/acs.inorgchem.3c02900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2023]
Abstract
Metal halides have attracted increasing attention owing to their outstanding optoelectronic properties and tunable emission characteristics. Among these, low-dimensional metal halides have emerged as a novel and efficient luminescent material, primarily attributed to their broad spectral emission induced by self-trapped excitons (STEs). However, achieving highly efficient deep red and near-infrared (NIR) emission in metal halides remains a challenge. In this study, we report a novel zero-dimensional (0D) copper-based metal halide [Na2(DMSO)8]Cu4Br6 as the NIR light source, which exhibits a full width at half-maximum (FWHM) of 195 nm peaking at 685 nm, an impressive quantum efficiency of 68% and a large Stokes shift of 299 nm. Through comprehensive spectral analysis and meticulous data calculations, we substantiate that the emission originates from STEs formed within the 0D structure. Furthermore, we demonstrate the potential application of [Na2(DMSO)8]Cu4Br6 as an invisible light source in night vision by combining it with a commercially available 365 nm ultraviolet (UV) chip. This work not only enriches the family of low-dimensional metal halide materials but also inspires the potential of low-dimensional metal halides in night vision applications.
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Affiliation(s)
- Xin Yang
- Key Laboratory of Optoelectronic Technology & Systems (Ministry of Education), Chongqing University, Chongqing 400044, China
| | - Saif M H Qaid
- Department of Physics & Astronomy, College of Sciences, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Baiqian Wang
- Key Laboratory of Optoelectronic Technology & Systems (Ministry of Education), Chongqing University, Chongqing 400044, China
| | - Wensi Cai
- Key Laboratory of Optoelectronic Technology & Systems (Ministry of Education), Chongqing University, Chongqing 400044, China
| | - Qingkai Qian
- Key Laboratory of Optoelectronic Technology & Systems (Ministry of Education), Chongqing University, Chongqing 400044, China
| | - Zhigang Zang
- Key Laboratory of Optoelectronic Technology & Systems (Ministry of Education), Chongqing University, Chongqing 400044, China
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8
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Holzer C. Practical Post-Kohn-Sham Methods for Time-Reversal Symmetry Breaking References. J Chem Theory Comput 2023. [PMID: 37183702 DOI: 10.1021/acs.jctc.3c00156] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
The applicability of reduced scaling algorithms based on auxiliary subspace methods for the correlation energy from the random phase approximation (RPA) as well as the correlation part of the self-energy obtained from the GW method is outlined for time-reversal symmetry breaking Kohn-Sham (KS) references. The updated algorithms allow for an efficient evaluation of RPA energies and GW quasiparticle energies for molecular systems with KS references that break time-reversal symmetry. The latter occur, for example, in magnetic fields. Furthermore, KS references for relativistic open-shell molecules also break time-reversal symmetry due to the single determinant ansatz used. Errors of the updated reduced-scaling algorithms are shown to be negligible compared to reference implementations, while the overall computational scaling is reduced by 2 orders of magnitude. Ionization energies obtained from the GW approximation are shown to be robust even for the electronically complicated group of trivalent lanthanoid ions. Starting from GW quasiparticle energies, it is subsequently shown that light-matter interactions of these systems can be calculated using the Bethe-Salpeter equation (BSE). Using the combined GW-BSE method, the absorption and emission spectra of a molecular europium(III) complex can be obtained including spin-orbit coupling.
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Affiliation(s)
- Christof Holzer
- Institute of Theoretical Solid State Physics, Karlsruhe Institute of Technology (KIT), Wolfgang-Gaede-Straße 1, 76131 Karlsruhe, Germany
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9
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Cemortan V, Simler T, Moutet J, Jaoul A, Clavaguéra C, Nocton G. Structure and bonding patterns in heterometallic organometallics with linear Ln-Pd-Ln motifs. Chem Sci 2023; 14:2676-2685. [PMID: 36908951 PMCID: PMC9993901 DOI: 10.1039/d2sc06933d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Accepted: 01/20/2023] [Indexed: 01/22/2023] Open
Abstract
Complexes with short intermetallic distances between transition metal fragments and lanthanide (Ln) fragments are fascinating objects of study, owing to the ambiguity of the nature of the interaction. The addition of the divalent lanthanide fragments Cp*2Ln(OEt2) (Ln = Sm or Yb) to a Pd(ii) complex bearing the deprotonated form of the redox-active, non-symmetrical ligand, 2-pyrimidin-2-yl-1H-benzimidazole (Hbimpm), leads to two isostructural complexes, of the general formula (Cp*2Ln)2[μ-Pd(pyridyl)2] (Ln = Sm (4) and Yb (5)). These adducts have interesting features, such as unique linear Ln-Pd-Ln arrangements and short Ln-Pd distances, which deviate from the expected lanthanide contraction. A mixed computational and spectroscopic study into the formation of these adducts gathers important clues as to their formation. At the same time, thorough characterization of these complexes establishes the +3 oxidation state of all the involved Ln centers. Detailed theoretical computations demonstrate that the apparent deviation from lanthanide contraction is not due to any difference in the intermetallic interaction between the Pd and the Ln, but that the fragments are joined together by electrostatic interactions and dispersive forces. This conclusion contrasts with the findings about a third complex, Cp*2Yb(μ-Me)2PdCp* (6), formed during the reaction, which also possesses a short Yb-Pd distance. Studies at the CASSCF level of theory on this complex show several orbitals containing significant interactions between the 4f and 4d manifolds of the metals. This demonstrates the need for methodical and careful analyses in gauging the intermetallic interaction and the inadequacy of empirical metrics in describing such phenomena.
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Affiliation(s)
- Valeriu Cemortan
- LCM, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris Route de Saclay Palaiseau 91120 France .,Université Paris-Saclay, CNRS, Institut de Chimie Physique UMR8000 Orsay 91405 France
| | - Thomas Simler
- LCM, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris Route de Saclay Palaiseau 91120 France
| | - Jules Moutet
- LCM, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris Route de Saclay Palaiseau 91120 France
| | - Arnaud Jaoul
- LCM, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris Route de Saclay Palaiseau 91120 France
| | - Carine Clavaguéra
- Université Paris-Saclay, CNRS, Institut de Chimie Physique UMR8000 Orsay 91405 France
| | - Grégory Nocton
- LCM, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris Route de Saclay Palaiseau 91120 France
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10
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Wang C, Jin Y, Yuan L, Wang B, Zhang R, Wu H, Yao Q, Hu Y. Highly efficient and thermally stable broadband NIR phosphors by rationally bridging Cr 3+–Yb 3+ in LiScGe 2O 6 for optical bioimaging. Inorg Chem Front 2023. [DOI: 10.1039/d2qi02201j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A broadband NIR phosphor covering the 750–1200 nm region with high luminescence efficiency and good thermal stability was realized by the energy transfer of Cr3+ → Yb3+.
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Affiliation(s)
- Chuanlong Wang
- School of Physics and Optoelectronic Engineering, Guangdong University of Technology, WaiHuan Xi Road, No. 100, Guangzhou 510006, P. R. China
| | - Yahong Jin
- School of Physics and Optoelectronic Engineering, Guangdong University of Technology, WaiHuan Xi Road, No. 100, Guangzhou 510006, P. R. China
| | - Lifang Yuan
- School of Electronics and Communications, Guangdong Mechanical & Electronical College of Technology, Guangzhou 510515, P. R. China
| | - Bo Wang
- School of Applied Physics and Materials, Wuyi University, Jiangmen 529020, P. R. China
| | - Ruiting Zhang
- School of Physics and Optoelectronic Engineering, Guangdong University of Technology, WaiHuan Xi Road, No. 100, Guangzhou 510006, P. R. China
| | - Haoyi Wu
- School of Physics and Optoelectronic Engineering, Guangdong University of Technology, WaiHuan Xi Road, No. 100, Guangzhou 510006, P. R. China
| | - Qing Yao
- School of Physics and Optoelectronic Engineering, Guangdong University of Technology, WaiHuan Xi Road, No. 100, Guangzhou 510006, P. R. China
| | - Yihua Hu
- School of Physics and Optoelectronic Engineering, Guangdong University of Technology, WaiHuan Xi Road, No. 100, Guangzhou 510006, P. R. China
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11
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Miao S, Liang Y, Chen D, Shi R, Shan X, Zhang Y, Xie F, Wang XJ. Site-Selective Occupancy Control of Cr Ions toward Ultrabroad-Band Infrared Luminescence with a Spectral Width up to 419 nm. ACS APPLIED MATERIALS & INTERFACES 2022; 14:53101-53110. [PMID: 36397182 DOI: 10.1021/acsami.2c18388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Infrared-emitting phosphor-converted light-emitting diodes (LEDs) are desirable light sources for a very wide range of applications such as spectroscopy analysis, nondestructive monitoring, covert information identification, and night-vision surveillance. The most important aspect of infrared emitters for spectroscopy is to cover the widest possible wavelength range of emitted light. However, developing ultrabroad-band infrared emitters based on converter technology is still a challenging task due to the lack of suitable phosphor materials that emit in a wide wavelength range upon excitation from blue-emitting chips. Herein, this work demonstrates Cr3+-activated Mg2SiO4 infrared phosphors with a super wide infrared spectral range of 600 to 1400 nm and high internal quantum yield up to 80.4% upon 460 nm excitation. Site-selective occupancy of Cr3+ emitters in two different Mg sites in the Mg2SiO4 lattice results in two distinct broad emission bands peaking at 760 and 970 nm, both of which contribute to the ultrabroad-band infrared luminescence with a full width at half maximum (FWHM) of 419 nm. This is by far the broadest infrared emission to the best of our knowledge. On this basis, an ultrabroad-band infrared LED prototype has been fabricated by the combination of the Mg2SiO4:Cr3+ phosphor with a blue LED chip, which shows great potential for imaging and sensing applications. This work demonstrates that site-selective occupancy control of Cr ions is an effective strategy for developing ultrabroad-band Cr3+-doped phosphors.
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Affiliation(s)
- Shihai Miao
- Key Laboratory for Liquid-Solid Structure Evolution and Processing of Materials, Ministry of Education, Shandong University, Jinan, Shandong250061, China
| | - Yanjie Liang
- Key Laboratory for Liquid-Solid Structure Evolution and Processing of Materials, Ministry of Education, Shandong University, Jinan, Shandong250061, China
| | - Dongxun Chen
- Key Laboratory for Liquid-Solid Structure Evolution and Processing of Materials, Ministry of Education, Shandong University, Jinan, Shandong250061, China
| | - Ruiqi Shi
- Key Laboratory for Liquid-Solid Structure Evolution and Processing of Materials, Ministry of Education, Shandong University, Jinan, Shandong250061, China
| | - Xihui Shan
- Key Laboratory for Liquid-Solid Structure Evolution and Processing of Materials, Ministry of Education, Shandong University, Jinan, Shandong250061, China
| | - Yi Zhang
- Key Laboratory for Liquid-Solid Structure Evolution and Processing of Materials, Ministry of Education, Shandong University, Jinan, Shandong250061, China
| | - Fei Xie
- Key Laboratory for Liquid-Solid Structure Evolution and Processing of Materials, Ministry of Education, Shandong University, Jinan, Shandong250061, China
| | - Xiao-Jun Wang
- Department of Physics, Georgia Southern University, Statesboro, Georgia30460, United States
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12
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Xie G, Si J, Li G, Cai G. Environment-Dependent Eu 2+-Activated Ba 3CaK(PO 4) 3 toward White-Light Emission by Chemical Cosubstitution of the (BO 3) 3- Anion Group. Inorg Chem 2022; 61:14845-14856. [PMID: 36059197 DOI: 10.1021/acs.inorgchem.2c02462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Investigating the phosphors doped with single activators in a single component to realize white-light emission is urgently desired for phosphor-converted white-light-emitting diodes. In this work, on the basis of the chemical unit cosubstitution strategy, the new borophosphate phosphors Ba3CaK(PO4)3-x(BO3)x:0.02Eu2+ with a mixed anion group were prepared. Coupling structure refinement and photoluminescence analyses, Ba3CaK(PO4)3-x(BO3)x consists of five different cationic sites with different coordination environments, with Eu2+ occupying the three sites for Ba2+. In the process of partial substituting (BO3)3- for (PO4)3-, because of the greatly distorted coordination field generated from the difference in the geometric configurations between the two anion groups, a red shift and broadening of the emission bands occurs, resulting in a color-adjustable emission from blue to white. A phosphor-converted light-emitting diode has been successfully fabricated with the incorporation of an as-prepared Ba3CaK(PO4)2.6(BO3)0.4:0.02Eu2+ phosphor and a 405 nm near-ultraviolet chip, which exhibits Commission International de I'Eclairage chromaticity coordinates of (0.31, 0.37) and a correlated color temperature of 6295 K. As demonstrated in the present work, an approach adopted from phosphate to borophosphate is conducted to develop high-quality phosphors.
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Affiliation(s)
- Guodong Xie
- College of Mechanical and Electrical Engineering, Central South University of Forestry and Technology, Changsha, Hunan 410004, China
| | - Jiayong Si
- College of Mechanical and Electrical Engineering, Central South University of Forestry and Technology, Changsha, Hunan 410004, China
| | - Guihua Li
- School of Materials Science and Engineering, Central South University, Changsha, Hunan 410083, China
| | - Gemei Cai
- School of Materials Science and Engineering, Central South University, Changsha, Hunan 410083, China
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13
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Wang X, Jahanbazi F, Wei J, Segre CU, Chen W, Mao Y. Charge Transfer-Triggered Bi 3+ Near-Infrared Emission in Y 2Ti 2O 7 for Dual-Mode Temperature Sensing. ACS APPLIED MATERIALS & INTERFACES 2022; 14:36834-36844. [PMID: 35921172 DOI: 10.1021/acsami.2c09361] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Trivalent bismuth is a popular main group ion showing versatile luminescent behaviors in a broad spectral range from ultraviolet to visible, but barely in the near-infrared (NIR) region. In this study, we have observed unexpected NIR emission at ∼744 nm in a Bi3+-doped pyrochlore, Y2Ti2O7 (YTOB). Our first-principles electronic structure calculation and analysis of the Bi local structure via extended X-ray absorption fine structure indicate that only Bi3+ species appears in YTOB and it has a similar local environment to that of Y3+. The NIR emission is assigned to a Ti4+ → Bi3+ metal-to-metal charge transfer process. Moreover, we have demonstrated dual-mode luminescence thermometry based on the luminescence intensity ratio (LIR) and lifetime (τ) in 0.5% Bi3+ and 0.5% Pr3+ co-doped Y2Ti2O7 (YTOB0.5P0.5). It exhibits high thermometric sensitivity simultaneously in the cryogenic temperature range from 78 to 298 K based on τ of the NIR emission of Bi3+ at 748 nm and in the temperature range of 278-378 K based on the LIR of Bi3+ to Pr3+ emissions (I748/I615). As a novel LIR-τ dual-mode thermometric material over a wide temperature range, the maximum relative sensitivities of the YTOB0.5P0.5 reach 3.53% K-1 at 298 K from the τ mode and 3.52% K-1 at 318 K based on the LIR mode. The dual-mode luminescence thermometry with high responsivity from our Bi3+-based pyrochlore Y2Ti2O7 phosphor opens a new avenue for more luminescent materials toward multi-mode thermometry applied in complex temperature-sensing conditions.
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Affiliation(s)
- Xianli Wang
- Department of Chemistry, Illinois Institute of Technology, Chicago, Illinois 60616, United States
| | - Forough Jahanbazi
- Department of Chemistry, Illinois Institute of Technology, Chicago, Illinois 60616, United States
| | - Jialiang Wei
- Department of Mechanical, Materials, and Aerospace Engineering, Illinois Institute of Technology, Chicago, Illinois 60616, United States
| | - Carlo U Segre
- Center for Synchrotron Radiation Research and Instrumentation and Department of Physics, Illinois Institute of Technology, Chicago, Illinois 60616, United States
| | - Wei Chen
- Department of Mechanical, Materials, and Aerospace Engineering, Illinois Institute of Technology, Chicago, Illinois 60616, United States
| | - Yuanbing Mao
- Department of Chemistry, Illinois Institute of Technology, Chicago, Illinois 60616, United States
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14
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He S, Li P, Ren Y, Wei G, Wang Y, Yang Y, Li R, Li J, Shi Y, Shi X, Wang Z. Near-Infrared Broadband ZnTa 2O 6:Cr 3+ Phosphor for pc-LEDs and Its Application to Nondestructive Testing. Inorg Chem 2022; 61:11284-11292. [PMID: 35834349 DOI: 10.1021/acs.inorgchem.2c01403] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Broadband near-infrared (NIR) phosphors are necessary materials for developing portable NIR light sources. Moreover, exploiting an NIR phosphor with a main peak located beyond a wavelength of 900 nm remains a challenge because this spectral range has great potential in biological nondestructive testing and solution testing. In this study, a range of Cr3+-doped ZnTa2O6 (ZTO) phosphors were completely synthesized by a solid-state method, which show broadband Cr3+ emission centered at 935 nm with a large full width at half maximum (FWHM) of 185 nm due to two distorted octahedral sites. A packaged phosphor-converted light-emitting diode (pc-LED) device is used to penetrate a 5-cm-thick chicken breast and identify diverse solutions based on differences in the measured transmission spectra. The results indicate broad application prospects in the field of biological tissue penetration and solution analysis.
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Affiliation(s)
- Shaoxuan He
- Hebei Key Laboratory of Optic-Electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding 071002, China
| | - Panlai Li
- Hebei Key Laboratory of Optic-Electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding 071002, China
| | - Yinti Ren
- Hebei Key Laboratory of Optic-Electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding 071002, China
| | - Guohui Wei
- Hebei Key Laboratory of Optic-Electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding 071002, China
| | - Ye Wang
- Hebei Key Laboratory of Optic-Electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding 071002, China
| | - Yuanbo Yang
- Hebei Key Laboratory of Optic-Electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding 071002, China
| | - Rui Li
- Hebei Key Laboratory of Optic-Electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding 071002, China
| | - Jiehong Li
- Hebei Key Laboratory of Optic-Electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding 071002, China
| | - Yawei Shi
- Hebei Key Laboratory of Optic-Electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding 071002, China
| | - Xingqiang Shi
- Hebei Key Laboratory of Optic-Electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding 071002, China
| | - Zhijun Wang
- Hebei Key Laboratory of Optic-Electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding 071002, China
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15
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He F, Song E, Chang H, Zhou Y, Xia Z, Zhang Q. Interstitial Li + Occupancy Enabling Radiative/Nonradiative Transition Control toward Highly Efficient Cr 3+-Based Near-Infrared Luminescence. ACS APPLIED MATERIALS & INTERFACES 2022; 14:31035-31043. [PMID: 35785991 DOI: 10.1021/acsami.2c07495] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Highly efficient and stable broadband near-infrared (NIR) emission phosphors are crucial for the construction of next-generation smart lighting sources; however, the discovery of target phosphors remains a great challenge. Benefiting from the interstitial Li+ occupancy-induced relatively large distorted octahedral environment for Cr3+ and suppressed nonradiative relaxation of the emission centers, an NIR emission fluoride phosphor Na3GaF6:Cr3+,Li+ peaking at 758 nm with a high internal quantum efficiency of 95.8% and an external quantum efficiency of 38.3% is demonstrated. Moreover, it exhibits a good thermal stability (84.9%@150 °C of the integrated emission intensity at 25 °C) and excellent moisture resistance as well. A high-power light-emitting diode (LED) with a record watt-level NIR output (974.12 mW) and a photoelectric conversion efficiency of 20.9% is demonstrated by combining Na3GaF6:Cr3+,Li+ and a blue InGaN chip, and a special information encryption/decryption technology suitable for rapid and long-distance identification of machines is further presented based on this device. This study not only advances the development of efficient NIR emission phosphors for broadband NIR LEDs but also for NIR-related emerging applications and devices.
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Affiliation(s)
- Fanquan He
- State Key Laboratory of Luminescent Materials and Devices and Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, South China University of Technology, Guangzhou 510641, P. R. China
| | - Enhai Song
- State Key Laboratory of Luminescent Materials and Devices and Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, South China University of Technology, Guangzhou 510641, P. R. China
- MOE Key Laboratory of New Processing Technology for Non-ferrous Metals and Materials, Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University, Nanning, Guangxi 530004, China
| | - Hui Chang
- State Key Laboratory of Luminescent Materials and Devices and Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, South China University of Technology, Guangzhou 510641, P. R. China
| | - Yayun Zhou
- State Key Laboratory of Luminescent Materials and Devices and Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, South China University of Technology, Guangzhou 510641, P. R. China
| | - Zhiguo Xia
- State Key Laboratory of Luminescent Materials and Devices and Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, South China University of Technology, Guangzhou 510641, P. R. China
- School of Physics and Optoelectronics, South China University of Technology, Guangzhou 510641, China
| | - Qinyuan Zhang
- State Key Laboratory of Luminescent Materials and Devices and Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, South China University of Technology, Guangzhou 510641, P. R. China
- School of Physics and Optoelectronics, South China University of Technology, Guangzhou 510641, China
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16
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Wen D, Liu H, Guo Y, Zeng Q, Wu M, Liu RS. Disorder–Order Conversion‐Induced Enhancement of Thermal Stability of Pyroxene Near‐Infrared Phosphors for Light‐Emitting Diodes. Angew Chem Int Ed Engl 2022; 61:e202204411. [DOI: 10.1002/anie.202204411] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Dawei Wen
- School of Applied Physics and Materials Wuyi University Jiangmen Guangdong 529020 P. R. China
| | - Hongmin Liu
- School of Applied Physics and Materials Wuyi University Jiangmen Guangdong 529020 P. R. China
| | - Yue Guo
- School of Applied Physics and Materials Wuyi University Jiangmen Guangdong 529020 P. R. China
| | - Qingguang Zeng
- School of Applied Physics and Materials Wuyi University Jiangmen Guangdong 529020 P. R. China
| | - Mingmei Wu
- School of Marine Sciences Sun Yat-Sen University Zhuhai 519082 P. R. China
| | - Ru Shi Liu
- Department of Chemistry National Taiwan University Taipei 106 Taiwan
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17
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Qiao J, Zhang S, Zhou X, Chen W, Gautier R, Xia Z. Near-Infrared Light-Emitting Diodes utilizing a Europium-Activated Calcium Oxide Phosphor with External Quantum Efficiency of up to 54.7. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2201887. [PMID: 35426472 DOI: 10.1002/adma.202201887] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 04/06/2022] [Indexed: 06/14/2023]
Abstract
Near-infrared (NIR) luminescence materials with broadband emissions are necessary for the development of light-emitting diodes (LEDs) based light sources. However, most known NIR-emitting materials are limited by their low external quantum efficiency. This work demonstrates how the photoluminescence quantum efficiency of europium-activated calcium oxide (CaO:Eu) NIR phosphor can be significantly improved and stabilized at operating temperatures of LEDs. A carbon paper wrapping technology is innovatively developed and used during the solid-state sintering to promote the reduction of Eu3+ into Eu2+ . In parallel, the oxygen vacancies in the CaO lattice are repaired utilizing GeO2 decomposition. Through this process, a record-high external quantum efficiency of 54.7% at 740 nm is obtained with a thermal stability greatly improved from 57% to 90% at 125 °C. The as-fabricated NIR-LEDs reach record photoelectric efficiency (100 mA@23.4%) and output power (100 mA @ 319.5 mW). This discovery of high-performance phosphors will open new research avenues for broadband NIR LED light sources in a variety of photonics applications.
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Affiliation(s)
- Jianwei Qiao
- State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, China
| | - Shuai Zhang
- State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, China
| | - Xinquan Zhou
- State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, China
| | - Weibin Chen
- State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, China
| | - Romain Gautier
- Nantes Université, CNRS, Institut des Matériaux de Nantes Jean Rouxel, IMN, Nantes, F-44000, France
| | - Zhiguo Xia
- State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, China
- School of Physics and Optoelectronics, South China University of Technology, Guangzhou, Guangdong, 510641, China
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18
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Wen D, Liu H, Guo Y, Zeng Q, Wu M, Liu RS. Disorder–Order Conversion‐Induced Enhancement of Thermal Stability of Pyroxene Near‐Infrared Phosphors for Light‐Emitting Diodes. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202204411] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Dawei Wen
- School of Applied Physics and Materials Wuyi University Jiangmen Guangdong 529020 P. R. China
| | - Hongmin Liu
- School of Applied Physics and Materials Wuyi University Jiangmen Guangdong 529020 P. R. China
| | - Yue Guo
- School of Applied Physics and Materials Wuyi University Jiangmen Guangdong 529020 P. R. China
| | - Qingguang Zeng
- School of Applied Physics and Materials Wuyi University Jiangmen Guangdong 529020 P. R. China
| | - Mingmei Wu
- School of Marine Sciences Sun Yat-Sen University Zhuhai 519082 P. R. China
| | - Ru Shi Liu
- Department of Chemistry National Taiwan University Taipei 106 Taiwan
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19
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Zhang L, Yuan M. Lanthanide doped lead-free double perovskites as the promising next generation ultra-broadband light sources. LIGHT, SCIENCE & APPLICATIONS 2022; 11:99. [PMID: 35440599 PMCID: PMC9018829 DOI: 10.1038/s41377-022-00782-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Efficient ultra-broadband emitter is realized by using lanthanide ion doping coupled with "DPs-in-glass composite" (DiG) structure. The synergy of self-trapped exciton together with the energy transition induce this ultra-broadband emission emerge.
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Affiliation(s)
- Li Zhang
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center (RECAST), College of Chemistry, Nankai University, Tianjin, China
| | - Mingjian Yuan
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center (RECAST), College of Chemistry, Nankai University, Tianjin, China.
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, China.
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20
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Luminescent Color-Adjustable Europium and Terbium Co-Doped Strontium Molybdate Phosphors Synthesized at Room Temperature Applied to Flexible Composite for LED Filter. CRYSTALS 2022. [DOI: 10.3390/cryst12040552] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
In this study, terbium and europium rare-earth ions were single-doped and co-doped to synthesized SoMoO4 phosphor at room temperature. The samples prepared synthesized crystalline SrMoO4 powder by the co-precipitation. Samples had a tetragonal structure in XRD analysis and d(112) spacing was changed by rare-earth doping. As the amount of rare earth added increased, a secondary phase appeared, and the structure changed. The synthesized SrMoO4:Tb3+ phosphors showed a green light emission at 544 nm under 287 nm, SrMoO4:Eu3+ phosphors showed a red light emission at 613 nm under 290 nm, and SrMoO4:[Eu3+]/[Tb3+] phosphor showed a yellow-white light emission at 544 and 613 nm when excited at 287 nm. The synthesized phosphor exhibited a change in green and red luminescence intensity based on the amount of Eu3+ doped and showed strong red luminescence as the Eu3+ doping increased. To use the SrMoO4:[Eu3+]/[Tb3+] phosphor with these characteristics in an LED color filter, a flexible composite prepared by mixing with PDMS showed green, red, and yellow-white emission under a UV-lamp.
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21
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Ren B, Yu Y, Poopal RK, Qiao L, Ren B, Ren Z. IR-Based Novel Device for Real-Time Online Acquisition of Fish Heart ECG Signals. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:4262-4271. [PMID: 35258949 DOI: 10.1021/acs.est.1c07732] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
We developed an infrared (IR)-based real-time online monitoring device (US Patent No: US 10,571,448 B2) to quantify heart electrocardiogram (ECG) signals to assess the water quality based on physiological changes in fish. The device is compact, allowing us to monitor cardiac function for an extended period (from 7 to 30 days depending on the rechargeable battery capacity) without function injury and disturbance of swimming activity. The electrode samples and the biopotential amplifier and microcontroller process the cardiac-electrical signals. An infrared transceiver transmits denoised electrocardiac signals to complete the signal transmission. The infrared receiver array and biomedical acquisition signal processing system send signals to the computer. The software in the computer processes the data in real time. We quantified ECG indexes (P-wave, Q-wave, R-wave, S-wave, T-wave, PR-interval, QRS-complex, and QT-interval) of carp precisely and incessantly under the different experimental setup (CuSO4 and deltamethrin). The ECG cue responses were chemical-specific based on CuSO4 and deltamethrin exposures. This study provides an additional technology for noninvasive water quality surveillance.
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Affiliation(s)
- Baixiang Ren
- Institute of Environment and Ecology, Shandong Normal University, 250358 Jinan, China
| | - Yaxin Yu
- Institute of Environment and Ecology, Shandong Normal University, 250358 Jinan, China
| | - Rama-Krishnan Poopal
- Institute of Environment and Ecology, Shandong Normal University, 250358 Jinan, China
| | - Linlin Qiao
- Institute of Environment and Ecology, Shandong Normal University, 250358 Jinan, China
| | - Baichuan Ren
- Institute of Environment and Ecology, Shandong Normal University, 250358 Jinan, China
| | - Zongming Ren
- Institute of Environment and Ecology, Shandong Normal University, 250358 Jinan, China
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22
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Jin S, Li R, Huang H, Jiang N, Lin J, Wang S, Zheng Y, Chen X, Chen D. Compact ultrabroadband light-emitting diodes based on lanthanide-doped lead-free double perovskites. LIGHT, SCIENCE & APPLICATIONS 2022; 11:52. [PMID: 35256583 PMCID: PMC8901751 DOI: 10.1038/s41377-022-00739-2] [Citation(s) in RCA: 41] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 02/10/2022] [Accepted: 02/13/2022] [Indexed: 05/21/2023]
Abstract
Impurity doping is an effective approach to tuning the optoelectronic performance of host materials by imparting extrinsic electronic channels. Herein, a family of lanthanide (Ln3+) ions was successfully incorporated into a Bi:Cs2AgInCl6 lead-free double-perovskite (DP) semiconductor, expanding the spectral range from visible (Vis) to near-infrared (NIR) and improving the photoluminescence quantum yield (PLQY). After multidoping with Nd, Yb, Er and Tm, Bi/Ln:Cs2AgInCl6 yielded an ultrabroadband continuous emission spectrum with a full width at half-maximum of ~365 nm originating from intrinsic self-trapped exciton recombination and abundant 4f-4f transitions of the Ln3+ dopants. Steady-state and transient-state spectra were used to ascertain the energy transfer and emissive processes. To avoid adverse energy interactions between the various Ln3+ ions in a single DP host, a heterogeneous architecture was designed to spatially confine different Ln3+ dopants via a "DP-in-glass composite" (DiG) structure. This bottom-up strategy endowed the prepared Ln3+-doped DIG with a high PLQY of 40% (nearly three times as high as that of the multidoped DP) and superior long-term stability. Finally, a compact Vis-NIR ultrabroadband (400~2000 nm) light source was easily fabricated by coupling the DiG with a commercial UV LED chip, and this light source has promising applications in nondestructive spectroscopic analyses and multifunctional lighting.
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Affiliation(s)
- Shilin Jin
- College of Physics and Energy, Fujian Normal University, Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, Fuzhou, 350117, China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information, Fuzhou, 350116, China
| | - Renfu Li
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Key Laboratory of Nanomaterials and State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China.
| | - Hai Huang
- College of Physics and Energy, Fujian Normal University, Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, Fuzhou, 350117, China
| | - Naizhong Jiang
- College of Physics and Energy, Fujian Normal University, Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, Fuzhou, 350117, China
| | - Jidong Lin
- College of Physics and Energy, Fujian Normal University, Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, Fuzhou, 350117, China
| | - Shaoxiong Wang
- College of Physics and Energy, Fujian Normal University, Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, Fuzhou, 350117, China
- Fujian Provincial Collaborative Innovation Center for Advanced High-Field Superconducting Materials and Engineering, Fuzhou, 350117, China
- Fujian Provincial Engineering Technology Research Center of Solar Energy Conversion and Energy Storage, Fuzhou, 350117, China
| | - Yuanhui Zheng
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information, Fuzhou, 350116, China
- College of Chemistry, Fuzhou University, Fuzhou, 350116, China
| | - Xueyuan Chen
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Key Laboratory of Nanomaterials and State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China.
| | - Daqin Chen
- College of Physics and Energy, Fujian Normal University, Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, Fuzhou, 350117, China.
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information, Fuzhou, 350116, China.
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23
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Zheng G, Xiao W, Wu J, Liu X, Masai H, Qiu J. Glass-Crystallized Luminescence Translucent Ceramics toward High-Performance Broadband NIR LEDs. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2105713. [PMID: 35072364 PMCID: PMC8922114 DOI: 10.1002/advs.202105713] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 12/30/2021] [Indexed: 05/05/2023]
Abstract
Near-infrared (NIR) phosphor-converted light-emitting diodes (pc-LEDs) are newly emergent broadband light sources for miniaturizing optical systems like spectrometers. However, traditional converters with NIR phosphors encapsulated by organic resins suffer from low external quantum efficiency (EQE), strong thermal quenching as well as low thermal conductivity, thus limiting the device efficiency and output power. Through pressureless crystallization from the designed aluminosilicate glasses, here broadband Near-infrared (NIR) emitting translucent ceramics are developed with high EQE (59.5%) and excellent thermal stability (<10% intensity loss and negligible variation of emission profile at 150 °C) to serve as all-inorganic visible-to-NIR converters. A high-performance NIR phosphor-converted light emitting diodes is further demonstrated with a record NIR photoelectric efficiency (output power) of 21.2% (62.6 mW) at 100 mA and a luminescence saturation threshold up to 184 W cm-2 . The results can substantially expand the applications of pc-LEDs, and may open up new opportunity to design efficient broadband emitting materials.
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Affiliation(s)
- Guojun Zheng
- State Key Lab of Modern Optical InstrumentationCollege of Optical Science and EngineeringZhejiang UniversityHangzhou310027P. R. China
| | - Wenge Xiao
- State Key Lab of Modern Optical InstrumentationCollege of Optical Science and EngineeringZhejiang UniversityHangzhou310027P. R. China
| | - Jianhong Wu
- State Key Lab of Modern Optical InstrumentationCollege of Optical Science and EngineeringZhejiang UniversityHangzhou310027P. R. China
| | - Xiaofeng Liu
- School of Materials Science and EngineeringZhejiang UniversityHangzhou310027P. R. China
| | - Hirokazu Masai
- National Institute of Advanced Industrial Science and TechnologyOsaka563‐8577Japan
| | - Jianrong Qiu
- State Key Lab of Modern Optical InstrumentationCollege of Optical Science and EngineeringZhejiang UniversityHangzhou310027P. R. China
- CAS Center for Excellence in Ultra‐intense Laser ScienceShanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghai201800P. R. China
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Kitagawa Y, Ueda J, Xu J, Nakanishi T, Takeda T, Hirosaki N, Tanabe S. Deep-red to near-infrared luminescence from Eu 2+-trapped exciton states in YSiO 2N. Phys Chem Chem Phys 2022; 24:4348-4357. [PMID: 35108722 DOI: 10.1039/d1cp05242j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The valence state of Eu ions doped in inorganic compounds is easily influenced by the synthesizing conditions. In this study, X-ray absorption spectroscopy revealed that almost half of Eu ions incorporated in the YSiO2N host were reduced into the divalent state through the sintering process at 1600 °C under a N2 gas atmosphere without any annealing processes. The prepared Eu2+/3+-doped YSiO2N sample showed anomalous deep-red to near-infrared luminescence below 300 K under violet light illumination, whose luminescent properties are discussed through detailed spectroscopic analyses. In the photoluminescence spectra at 4 K, the broad luminescence band ranging from 550 to 1100 nm with a large Stokes shift of 5677 cm-1 was observed, assigned to the recombination emission related to the Eu2+-trapped exciton state. The temperature dependence of luminescence lifetime suggests that the thermal quenching of Eu2+-trapped exciton luminescence takes place through complicated processes in addition to thermal ionization. The energy diagrams based on the spectroscopic results indicate that Eu2+-trapped exciton luminescence in the YSiO2N:Eu2+/3+ sample was observed because all the Eu2+: 5d excited levels are degenerated with the host conduction band, and the relatively stable Eu2+-trapped exciton state in the Y3+ sites is formed just below the conduction band bottom. A comprehensive discussion on the deep-red to near-infrared luminescence in the YSiO2N host could give new insights into the mechanism of Eu2+-trapped exciton luminescence in Y3+ sites, which has potential in near-infrared emitting devices.
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Affiliation(s)
- Yuuki Kitagawa
- Department of Interdisciplinary Environment, Graduate School of Human and Environmental Studies, Kyoto University, Kyoto 606-8501, Japan.
| | - Jumpei Ueda
- Department of Interdisciplinary Environment, Graduate School of Human and Environmental Studies, Kyoto University, Kyoto 606-8501, Japan.
| | - Jian Xu
- International Center for Young Scientists (ICYS), National Institute for Materials Science (NIMS), Tsukuba, Ibaraki 305-0044, Japan
| | - Takayuki Nakanishi
- Luminescent Materials Group, National Institute for Materials Science (NIMS), Tsukuba, Ibaraki 305-0044, Japan
| | - Takashi Takeda
- Luminescent Materials Group, National Institute for Materials Science (NIMS), Tsukuba, Ibaraki 305-0044, Japan
| | - Naoto Hirosaki
- Luminescent Materials Group, National Institute for Materials Science (NIMS), Tsukuba, Ibaraki 305-0044, Japan
| | - Setsuhisa Tanabe
- Department of Interdisciplinary Environment, Graduate School of Human and Environmental Studies, Kyoto University, Kyoto 606-8501, Japan.
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Chen Q, Jing W, Yeung YY, Yin M, Duan CK. Mechanisms of bismuth-activated near-infrared photoluminescence - a first-principles study on the MXCl 3 series. Phys Chem Chem Phys 2021; 23:17420-17429. [PMID: 34352058 DOI: 10.1039/d1cp01632f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Bismuth dopants have attracted intensive studies experimentally for their extremely broad near-infrared luminescence. Here we performed first-principles calculations to investigate the site occupancy and valence state by taking the condition of synthesis into consideration, and then calculated the excited states and various transitions of the bismuth ions by focusing on the targeted valent state Bi+ in a variety of ternary chloride MXCl3 (M = K, Rb, Cs; X = Mg, Cd) hosts. The results on formation energies and charge transition levels show that vacant defects play an important role in the charge compensation for the bismuth dopants, and a lower chemical potential of chlorine benefits the stabilization of Bi+ at monovalent M sites. The multi-configurational quantum-chemical method and the constrained occupancy approach together confirm the near-infrared photoluminescence of Bi+, and the spontaneous emission rates due to electric-dipole and magnetic-dipole contributions are evaluated and analyzed in terms of transition selection rules, to affirm the Bi+ nature of the long lifetime luminescence. Our results show that the mechanisms revealed in this study, and the combination of density-functional calculations for defect formation energies with the wave-function based calculations for optical transitions, are effective in exploring the luminescence of bismuth dopants in solids.
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Affiliation(s)
- Qiaoling Chen
- Hefei National Laboratory for Physical Sciences at the Microscale and School of Physical Sciences, University of Science and Technology of China, Hefei 230026, China.
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The angular overlap model of ligand field theory for f elements: An intuitive approach building bridges between theory and experiment. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213981] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Joos JJ, Neefjes I, Seijo L, Barandiarán Z. Charge transfer from Eu2+ to trivalent lanthanide co-dopants: Systematic behavior across the series. J Chem Phys 2021; 154:064704. [DOI: 10.1063/5.0037992] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Affiliation(s)
- Jonas J. Joos
- LumiLab, Department of Solid State Sciences, Ghent University, B-9000 Gent, Belgium
| | - Ivo Neefjes
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Luis Seijo
- Departamento de Química, Instituto Universitario de Ciencia de Materiales Nicolás Cabrera, and Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Zoila Barandiarán
- Departamento de Química, Instituto Universitario de Ciencia de Materiales Nicolás Cabrera, and Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, 28049 Madrid, Spain
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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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