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Shen Y, Wang B, Wang P, Chen Y, Xu Z, Huang W, Wu D. Achieving Dual Emission of Fluorescence and Phosphorescence from Anti-Kasha's Metal-Organic Halides for Information Encryption. Inorg Chem 2024; 63:12073-12080. [PMID: 38946340 DOI: 10.1021/acs.inorgchem.4c01047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
Luminescent materials typically emit their fluorescence or phosphorescence at a specific wavelength with different excitation energies via the so-called Kasha's rule. If fluorescence or phosphorescence emission via anti-Kasha's rule could be achieved, it will hold great promise for applications in many fields. In this work, we report the synthesis and characterization of new metal-organic halide materials with dual emission of efficient room-temperature phosphorescence and fluorescence, which obey anti-Kasha's rule. Here, three emitting metal-organic halides with formula [ZnX2(bidpe)] (X = Cl for 1, X = Br for 2, X = I for 3, bidpe = 4,4'-bis(imidazol-1-yl)diphenyl ether) were prepared and their photophysical properties were investigated. The complexes exhibit dual emission of fluorescence and phosphorescence via anti-Kasha's rule, and their RTP properties of resultant products are modulated by halide substitution synthesis. DFT calculations indicate that the singlet states exhibit a halide-ligand charge transfer (XLCT) character while the triplet states are dominated by the intraligand π-π* transitions. Furthermore, the multilevel information encryption and anticounterfeiting applications are developed by virtue of anti-Kasha's rule emission.
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Affiliation(s)
- Yi Shen
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis & Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu 213164, P. R. China
| | - Bin Wang
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis & Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu 213164, P. R. China
| | - Pingping Wang
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis & Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu 213164, P. R. China
| | - Yang Chen
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis & Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu 213164, P. R. China
| | - Zhong Xu
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis & Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu 213164, P. R. China
| | - Wei Huang
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis & Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu 213164, P. R. China
| | - Dayu Wu
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis & Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu 213164, P. R. China
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2
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Zhang ZC, Gu ZG, Zhang J. Host-Guest Metal-Organic Frameworks-Based Long-Afterglow Luminescence Materials. Molecules 2024; 29:2989. [PMID: 38998941 PMCID: PMC11243098 DOI: 10.3390/molecules29132989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2024] [Revised: 06/17/2024] [Accepted: 06/20/2024] [Indexed: 07/14/2024] Open
Abstract
Long-afterglow materials have a broad of applications in optoelectronic devices, sensors, medicine and other fields due to their excellent luminescent properties. The host-guest long-afterglow MOFs material combines the advantages of multi-component characteristics and the stability of MOFs, which improves its luminous performance and expands its other properties. This review introduces the classification, synthesis and application of host-guest MOFs materials with long afterglow. Due to their rigid frames and multi-channel characteristics, MOFs can load common guest materials including rare earth metals, organic dyes, carbon dots, etc. The synthesis methods of loading guest materials into MOFs include solvothermal synthesis, post-encapsulation, post-modification, etc. Those long-afterglow host-guest MOFs have a wide range of applications in the fields of sensors, information security and biological imaging.
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Affiliation(s)
- Zhi-Chen Zhang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
- College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Zhi-Gang Gu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou 350108, China
| | - Jian Zhang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou 350108, China
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3
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Singh V, Bhat AA, Radha M, Seshadri M, Nandyala SH, Joo JB. Investigation on structure and photoluminescence properties of Ho 3+ doped Ca 3(VO 4) 2 phosphors for luminescent devices. RSC Adv 2024; 14:18777-18786. [PMID: 38867735 PMCID: PMC11167516 DOI: 10.1039/d4ra03178d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Accepted: 05/30/2024] [Indexed: 06/14/2024] Open
Abstract
This study focuses on the synthesis and characterization of Ho3+ doped Ca3(VO4)2 phosphor for potential application in solid-state lighting technology. A citrate-based sol-gel process is optimized to achieve sheet-like morphologies in the phosphor material. The investigation reveals UV absorption at 371 nm, indicating a band gap of 3.28 eV. Emission transitions at (506, 541, and 651) nm are observed when excited at 451 nm, with an optimal Ho3+ concentration of 0.05 mol resulting in robust green emission at 541 nm. The concentration quenching in Ca3(VO4)2:xHo3+ phosphors is discussed in detail with Blesse's and Dexter's models. The concentration quenching effect found in the studied samples is due to the dipole-dipole interactions. Judd-Ofelt intensity parameters were calculated from the excitation bands, and for Ω 2, Ω 4, and Ω 6 are (0.16, 0.17, and 0.36) × 10-20 cm2, respectively. The emission properties for the (5S2 + 5F4) → 5I8 and 5F5 → 5I8 transitions are also estimated with J-O parameters. The higher magnitude of branching ratios (83%) and emission cross-sections (1.6 × 10-21 cm2) suggest that the Ca3(VO4)2:0.05Ho3+ phosphor materials may be suitable for efficient green-emitting device applications. The CIE coordinates confirm the potential of Ho3+-doped phosphors for green emissions, making them suitable for solid-state lighting and display technology.
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Affiliation(s)
- Vijay Singh
- Department of Chemical Engineering, Konkuk University Seoul 05029 Republic of Korea
| | - Aadil Ahmad Bhat
- Department of Chemical Engineering, Konkuk University Seoul 05029 Republic of Korea
| | - M Radha
- Department of Physics, Institute of Aeronautical Engineering (IARE) Hyderabad 500043 India
| | - M Seshadri
- Department of Physics, Koneru Lakshmaiah Education Foundation Hyderabad 500043 India
| | - Sooraj H Nandyala
- School of Metallurgy and Materials, University of Birmingham Edgbaston Birmingham B15 2TT UK
| | - Ji Bong Joo
- Department of Chemical Engineering, Konkuk University Seoul 05029 Republic of Korea
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Li X, Chen X, Jiang H, Wang M, Lin S, Ma Z, Wang H, Ji H, Jia M, Han Y, Zhu J, Pan G, Wu D, Li X, Xu W, Liu Y, Shan CX, Shi Z. Efficient Deep-Blue Light-Emitting Diodes from Highly Luminescent Eu 2+-Doped Alkali Metal Halide Nanocrystals via Lattice Field Modulation. NANO LETTERS 2024; 24:6601-6609. [PMID: 38787739 DOI: 10.1021/acs.nanolett.4c01155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2024]
Abstract
Lead-halide perovskite nanocrystals (NCs) are promising for fabricating deep-blue (<460 nm) light-emitting diodes (LEDs), but their development is plagued by low electroluminescent performance and lead toxicity. Herein, the synthesis of 12 kinds of highly luminescent and eco-friendly deep-blue europium (Eu2+)-doped alkali-metal halides (AX:Eu2+; A = Na+, K+, Rb+, Cs+; X = Cl-, Br-, I-) NCs is reported. Through adjustment of the coordination environment, efficient deep-blue emission from Eu-5d → Eu-4f transitions is realized. The representative CsBr:Eu2+ NCs exhibit a high photoluminescence quantum yield of 91.1% at 441 nm with a color coordinate at (0.158, 0.023) matching with the Rec. 2020 blue specification. Electrically driven deep-blue LEDs from CsBr:Eu2+ NCs are demonstrated, achieving a record external quantum efficiency of 3.15% and half-lifetime of ∼1 h, surpassing the reported metal-halide deep-blue NCs-based LEDs. Importantly, large-area LEDs with an emitting area of 12.25 cm2 are realized with uniform emission, representing a milestone toward commercial display applications.
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Affiliation(s)
- Xu Li
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics, Zhengzhou University, Daxue Road 75, Zhengzhou 450052, China
| | - Xu Chen
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics, Zhengzhou University, Daxue Road 75, Zhengzhou 450052, China
| | - Huifang Jiang
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics, Zhengzhou University, Daxue Road 75, Zhengzhou 450052, China
| | - Meng Wang
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics, Zhengzhou University, Daxue Road 75, Zhengzhou 450052, China
| | - Shuailing Lin
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics, Zhengzhou University, Daxue Road 75, Zhengzhou 450052, China
| | - Zhuangzhuang Ma
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics, Zhengzhou University, Daxue Road 75, Zhengzhou 450052, China
- Laboratory of Zhongyuan Light, School of Physics, Zhengzhou University, 100 Kexue Avenue, Zhengzhou 450001, China
| | - Hui Wang
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics, Zhengzhou University, Daxue Road 75, Zhengzhou 450052, China
| | - Huifang Ji
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics, Zhengzhou University, Daxue Road 75, Zhengzhou 450052, China
| | - Mochen Jia
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics, Zhengzhou University, Daxue Road 75, Zhengzhou 450052, China
- Laboratory of Zhongyuan Light, School of Physics, Zhengzhou University, 100 Kexue Avenue, Zhengzhou 450001, China
| | - Yanbing Han
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics, Zhengzhou University, Daxue Road 75, Zhengzhou 450052, China
| | - Jinyang Zhu
- State Center for International Cooperation on Designer Low-Carbon & Environmental Materials (CDLCEM), School of Materials Science and Engineering, Zhengzhou University, 100 Kexue Avenue, Zhengzhou 450001, China
| | - Gencai Pan
- School of Physics and Electronics and Institute of Micro/Nano Photonic Materials and Applications, Henan University, Kaifeng 475004, China
| | - Di Wu
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics, Zhengzhou University, Daxue Road 75, Zhengzhou 450052, China
| | - Xinjian Li
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics, Zhengzhou University, Daxue Road 75, Zhengzhou 450052, China
| | - Wen Xu
- Key Laboratory of New Energy and Rare Earth Resource Utilization of State Ethnic Affairs Commission, School of Physics and Materials Engineering, Dalian Minzu University, Dalian 116600, China
| | - Ying Liu
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics, Zhengzhou University, Daxue Road 75, Zhengzhou 450052, China
| | - Chong-Xin Shan
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics, Zhengzhou University, Daxue Road 75, Zhengzhou 450052, China
| | - Zhifeng Shi
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics, Zhengzhou University, Daxue Road 75, Zhengzhou 450052, China
- Laboratory of Zhongyuan Light, School of Physics, Zhengzhou University, 100 Kexue Avenue, Zhengzhou 450001, China
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Policei Marques N, Isikawa MM, Muradova Z, Morris T, Berbeco R, Guidelli EJ. Size-Dependent Blue Emission from Europium-Doped Strontium Fluoride Nanoscintillators for X-Ray-Activated Photodynamic Therapy. Adv Healthc Mater 2024:e2400372. [PMID: 38630101 DOI: 10.1002/adhm.202400372] [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: 01/30/2024] [Revised: 04/04/2024] [Indexed: 04/29/2024]
Abstract
Successful implementation of X-ray-activated photodynamic therapy (X-PDT) is challenging because most photosensitizers (PSs) absorb light in the blue region, but few nanoscintillators produce efficient blue scintillation. Here, efficient blue-emitting SrF2:Eu scintillating nanoparticles (ScNPs) are developed. The optimized synthesis conditions result in cubic nanoparticles with ≈32 nm diameter and blue emission at 416 nm. Coating them with the meso-tetra(n-methyl-4-pyridyl) porphyrin (TMPyP) in a core-shell structure (SrF@TMPyP) results in maximum singlet oxygen (1O2) generation upon X-ray irradiation for nanoparticles with 6TMPyP depositions (SrF@6TMPyP). The 1O2 generation is directly proportional to the dose, does not vary in the low-energy X-ray range (48-160 kVp), but is 21% higher when irradiated with low-energy X-rays than irradiations with higher energy gamma rays. In the clonogenic assay, cancer cells treated with SrF@6TMPyP and exposed to X-rays present a significantly reduced survival fraction compared to the controls. The SrF2:Eu ScNPs and their conjugates stand out as tunable nanoplatforms for X-PDT due to the efficient blue emission from the SrF2:Eu cores; the ability to adjust the scintillation emission in terms of color and intensity by controlling the nanoparticle size; the efficient 1O2 production when conjugated to a PS and the efficacy of killing cancer cells.
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Affiliation(s)
- Natasha Policei Marques
- Departamento de Física-Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, São Paulo, 14040-901, Brazil
| | - Mileni M Isikawa
- Departamento de Física-Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, São Paulo, 14040-901, Brazil
| | - Zeinaf Muradova
- Department of Radiation Oncology, Brigham and Women's Hospital, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, 02115, USA
| | - Toby Morris
- Department of Radiation Oncology, Brigham and Women's Hospital, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, 02115, USA
- Department of Physics and Applied Physics, University of Massachusetts Lowell, Lowell, MA, 01854, USA
| | - Ross Berbeco
- Department of Radiation Oncology, Brigham and Women's Hospital, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, 02115, USA
| | - Eder J Guidelli
- Departamento de Física-Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, São Paulo, 14040-901, Brazil
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6
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Miao Q, Wang Z. Tunable Ultralong Room Temperature Phosphorescence Based on Zn(II)-Niacin Metal-Organic Complex: Accessible and Low-Cost. Inorg Chem 2024; 63:6683-6691. [PMID: 38554088 DOI: 10.1021/acs.inorgchem.3c04618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/01/2024]
Abstract
Long persistent luminescence (LPL) materials open up a new avenue for information security, anticounterfeiting technology, and bioimaging thanks to their unique luminescence characteristics like ultralong exciton migration distances and multiple-colored light emission. As materials that have value for commercial applications, they attract much attention. In this paper, inexpensive, accessible, and eco-friendly niacin is used as a ligand to combine with the universally used metal ion Zn(II) to form a crystallized metal-organic complex dubbed Zn-NA. The named material possesses an ultralong room-temperature phosphorescence (RTP) with a lifetime of up to 265 ms under the atmosphere and up to 446 ms at 77 K. Notably, it exhibits a bright and multimode (excitation- and temperature-dependent) color-tunable LPL that changes from blue to cyan and then to yellow-green upon removal of the irradiation sources. Depending on its photoluminescence and theoretical calculations, the observed long-lived RTP of Zn-NA can be attributed to the coexistence of a single-molecule state induced by the heavy atom effect and an aggregated state within a dense crystalline structure.
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Affiliation(s)
- Qing Miao
- Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Zheng Wang
- Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
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Zhang Y, Chen J, Li K, Wu H, Hu Z, Wang J, Wu Y, Yu H. LaMg 6Ga 6S 16: a chemical stable divalent lanthanide chalcogenide. Nat Commun 2024; 15:2959. [PMID: 38580636 PMCID: PMC11271512 DOI: 10.1038/s41467-024-47209-4] [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: 08/25/2023] [Accepted: 03/21/2024] [Indexed: 04/07/2024] Open
Abstract
Divalent lanthanide inorganic compounds can exhibit unique electronic configurations and physicochemical properties, yet their synthesis remains a great challenge because of the weak chemical stability. To the best of our knowledge, although several lanthanide monoxides epitaxial thin films have been reported, there is no chemically stable crystalline divalent lanthanide chalcogenide synthesized up to now. Herein, by using octahedra coupling tetrahedra single/double chains to construct an octahedral crystal field, we synthesized the stable crystalline La(II)-chalcogenide, LaMg6Ga6S16. The nature of the divalent La2+ cations can be identified by X-ray photoelectron spectroscopy, X-ray absorption near-edge structure and electron paramagnetic resonance, while the stability is confirmed by the differential thermal scanning, in-situ variable-temperature powder X-ray diffraction and a series of solid-state reactions. Owing to the particular electronic characteristics of La2+(5d1), LaMg6Ga6S16 displays an ultrabroad-band green emission at 500 nm, which is the inaugural instance of La(II)-based compounds demonstrating luminescent properties. Furthermore, as LaMg6Ga6S16 crystallizes in the non-centrosymmetric space group, P-6, it is the second-harmonic generation (SHG) active, possessing a comparable SHG response with classical AgGaS2. In consideration of its wider band gap (Eg = 3.0 eV) and higher laser-induced damage threshold (5×AgGaS2), LaMg6Ga6S16 is also a promising nonlinear optical material.
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Affiliation(s)
- Yujie Zhang
- Tianjin Key Laboratory of Functional Crystal Materials, Institute of Functional Crystal, College of Materials Science and Engineering, Tianjin University of Technology, Tianjin, China
| | - Jiale Chen
- Tianjin Key Laboratory of Functional Crystal Materials, Institute of Functional Crystal, College of Materials Science and Engineering, Tianjin University of Technology, Tianjin, China
| | - Kaixuan Li
- Tianjin Key Laboratory of Functional Crystal Materials, Institute of Functional Crystal, College of Materials Science and Engineering, Tianjin University of Technology, Tianjin, China
| | - Hongping Wu
- Tianjin Key Laboratory of Functional Crystal Materials, Institute of Functional Crystal, College of Materials Science and Engineering, Tianjin University of Technology, Tianjin, China
| | - Zhanggui Hu
- Tianjin Key Laboratory of Functional Crystal Materials, Institute of Functional Crystal, College of Materials Science and Engineering, Tianjin University of Technology, Tianjin, China
| | - Jiyang Wang
- Tianjin Key Laboratory of Functional Crystal Materials, Institute of Functional Crystal, College of Materials Science and Engineering, Tianjin University of Technology, Tianjin, China
| | - Yicheng Wu
- Tianjin Key Laboratory of Functional Crystal Materials, Institute of Functional Crystal, College of Materials Science and Engineering, Tianjin University of Technology, Tianjin, China
| | - Hongwei Yu
- Tianjin Key Laboratory of Functional Crystal Materials, Institute of Functional Crystal, College of Materials Science and Engineering, Tianjin University of Technology, Tianjin, China.
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8
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Singh M, Shen K, Ye W, Gao Y, Lv A, Liu K, Ma H, Meng Z, Shi H, An Z. Achieving High-Temperature Phosphorescence by Organic Cocrystal Engineering. Angew Chem Int Ed Engl 2024; 63:e202319694. [PMID: 38314961 DOI: 10.1002/anie.202319694] [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: 12/19/2023] [Revised: 01/29/2024] [Accepted: 02/05/2024] [Indexed: 02/07/2024]
Abstract
Organic phosphors offer a promising alternative in optoelectronics, but their temperature-sensitive feature has restricted their applications in high-temperature scenarios, and the attainment of high-temperature phosphorescence (HTP) is still challenging. Herein, a series of organic cocrystal phosphors are constructed by supramolecular assembly with an ultralong emission lifetime of up to 2.16 s. Intriguingly, remarkable stabilization of triplet excitons can also be realized at elevated temperature, and green phosphorescence is still exhibited in solid state even up to 150 °C. From special molecular packing within the crystal lattice, it has been observed that the orientation of isolated water cluster and well-controlled molecular organization via multiple interactions can favor the structural rigidity of cocrystals more effectively to suppress the nonradiative transition, thus resulting in efficient room-temperature phosphorescence and unprecedented survival of HTP.
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Affiliation(s)
- Manjeet Singh
- School of Flexible Electronics (Future Technologies) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211800, China
| | - Kang Shen
- School of Flexible Electronics (Future Technologies) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211800, China
| | - Wenpeng Ye
- School of Flexible Electronics (Future Technologies) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211800, China
| | - Yanhua Gao
- School of Flexible Electronics (Future Technologies) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211800, China
| | - Anqi Lv
- School of Flexible Electronics (Future Technologies) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211800, China
| | - Kun Liu
- School of Flexible Electronics (Future Technologies) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211800, China
| | - Huili Ma
- School of Flexible Electronics (Future Technologies) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211800, China
| | - Zhengong Meng
- School of Flexible Electronics (Future Technologies) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211800, China
| | - Huifang Shi
- School of Flexible Electronics (Future Technologies) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211800, China
| | - Zhongfu An
- School of Flexible Electronics (Future Technologies) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211800, China
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9
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Gupta SK, Nigam S, Mao Y. Composition-dependent photoluminescence in nanocrystalline La 2Hf 2-xZr xO 7:Eu phosphor: role of chemical twin Zr/Hf environments around a luminescent center. Phys Chem Chem Phys 2024; 26:1749-1761. [PMID: 38165712 DOI: 10.1039/d3cp05454c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2024]
Abstract
Based on chemical intuition, linear trends are anticipated in Eu3+ photoluminescence performance inside a pyrochlore matrix of the chemical twins, Hf and Zr, owing to probable geometrical and chemical similarity around the luminescent center. The present work reports the drastically fluctuating result of doping Eu3+ in nanocrystalline pyrochlore, La2Hf2-xZrxO7 (LHZO), matrix on composition variation; the variation is counter to the anticipation-based chemical brotherhood of Hf and Zr. Zirconium-enriched samples of LHZO improve asymmetry around Eu3+ ion leading to enhanced photoluminescence quantum yield (PLQY). The samples with compositions 0.7Hf and 1.3Zr depict the lowest non-radiative channels with the highest theoretically calculated PLQY of ∼71% and excellent thermal stability (∼91%). Synergistic experimental and theoretical analysis reveals that Eu does not unbiasedly occupy La-sites in the pyrochlore LHZO matrix towards chemical twins of Hf and Zr; rather, it energetically prefers to occupy Zr-rich vicinal sites. When the composition with Zr is in the low-medium range, Eu has a higher probability of occupying Zr-rich vicinal sites depicting higher lifetime and PLQY. When Zr-content goes beyond 70-80%, the other site occupancies start contributing leading to a reduction in both lifetime and quantum yield. This work paves a great strategy and provides a futuristic potential to utilize europium luminescence in separating chemically close Hf-Zr for various technological applications.
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Affiliation(s)
- Santosh K Gupta
- Radiochemistry Division, Bhabha Atomic Research Centre, Mumbai-400085, India.
- Homi Bhabha National Institute, Anushaktinagar, Mumbai-400094, India
| | - Sandeep Nigam
- Homi Bhabha National Institute, Anushaktinagar, Mumbai-400094, India
- Chemistry Division, Bhabha Atomic Research Centre, Mumbai-400085, India
| | - Yuanbing Mao
- Department of Chemistry, Illinois Institute of Technology, 3101 South Dearborn Street, Chicago, IL 60616, USA.
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10
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Mushtaq U, Ayoub I, Kumar V, Sharma V, Swart HC, Chamanehpour E, Rubahn HG, Mishra YK. Persistent luminescent nanophosphors for applications in cancer theranostics, biomedical, imaging and security. Mater Today Bio 2023; 23:100860. [PMID: 38179230 PMCID: PMC10765243 DOI: 10.1016/j.mtbio.2023.100860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 10/24/2023] [Accepted: 11/07/2023] [Indexed: 01/06/2024] Open
Abstract
The extraordinary and unique properties of persistent luminescent (PerLum) nanostructures like storage of charge carriers, extended afterglow, and some other fascinating characteristics like no need for in-situ excitation, and rechargeable luminescence make such materials a primary candidate in the fields of bio-imaging and therapeutics. Apart from this, due to their extraordinary properties they have also found their place in the fields of anti-counterfeiting, latent fingerprinting (LPF), luminescent markings, photocatalysis, solid-state lighting devices, glow-in-dark toys, etc. Over the past few years, persistent luminescent nanoparticles (PLNPs) have been extensively used for targeted drug delivery, bio-imaging guided photodynamic and photo-thermal therapy, biosensing for cancer detection and subsequent treatment, latent fingerprinting, and anti-counterfeiting owing to their enhanced charge storage ability, in-vitro excitation, increased duration of time between excitation and emission, low tissue absorption, high signal-to-noise ratio, etc. In this review, we have focused on most of the key aspects related to PLNPs, including the different mechanisms leading to such phenomena, key fabrication techniques, properties of hosts and different activators, emission, and excitation characteristics, and important properties of trap states. This review article focuses on recent advances in cancer theranostics with the help of PLNPs. Recent advances in using PLNPs for anti-counterfeiting and latent fingerprinting are also discussed in this review.
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Affiliation(s)
- Umer Mushtaq
- Department of Physics, National Institute of Technology Srinagar, Jammu and Kashmir, 190006, India
- Department of Physics, University of the Free State, P.O. Box 339, Bloemfontein, ZA9300, South Africa
| | - Irfan Ayoub
- Department of Physics, National Institute of Technology Srinagar, Jammu and Kashmir, 190006, India
- Department of Physics, University of the Free State, P.O. Box 339, Bloemfontein, ZA9300, South Africa
| | - Vijay Kumar
- Department of Physics, National Institute of Technology Srinagar, Jammu and Kashmir, 190006, India
- Department of Physics, University of the Free State, P.O. Box 339, Bloemfontein, ZA9300, South Africa
| | - Vishal Sharma
- Institute of Forensic Science & Criminology, Panjab University, Chandigarh, 160014, India
| | - Hendrik C. Swart
- Department of Physics, University of the Free State, P.O. Box 339, Bloemfontein, ZA9300, South Africa
| | - Elham Chamanehpour
- NanoSYD, Mads Clausen Institute, University of Southern Denmark, Alsion 2, Sønderborg, 6400, Denmark
| | - Horst-Günter Rubahn
- NanoSYD, Mads Clausen Institute, University of Southern Denmark, Alsion 2, Sønderborg, 6400, Denmark
| | - Yogendra Kumar Mishra
- NanoSYD, Mads Clausen Institute, University of Southern Denmark, Alsion 2, Sønderborg, 6400, Denmark
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11
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Jiang Z, Yang Z, Li W. Self-Luminous Probe with One-Step Energy Conversion from Bioluminescence to NIR-IIb. Adv Healthc Mater 2023; 12:e2302089. [PMID: 37812813 DOI: 10.1002/adhm.202302089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 09/07/2023] [Indexed: 10/11/2023]
Abstract
Self-luminous probes with near-infrared (NIR) emission are powerful tools for deep-penetration and autofluorescence-free imaging, owing to the joint optimization of both excitation and emission. However, the limited emission wavelength and requirement for multistep energy transfer limit its potency. In this study, the concept of direct wavelength conversion is established from visible light (vis) to NIR-IIb using an exquisitely designed sensitizer-activator ion pair. The manipulation of the doping hosts enables a pair of energy levels between the sensitizer and activator. Based on this a class of broadband vis-responsive nanocrystals with intense NIR-II emission is prepared. The stability and quantum yield (up to 7.4%) of the nanocrystals are further enhanced by ZnS passivation via coherent epitaxial growth. By coupling luciferase, the self-luminous probe can convert bioluminescence to NIR-IIb luminescence (>1500 nm) through a one-step energy transfer. A maximum penetrable thickness of 6 mm is achieved in the porcine tissue model. Collectively, the distinctive photon-conversion performance of this probe offers the prospect of high-resolution labeling of deep-seated lesions.
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Affiliation(s)
- Zhao Jiang
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Zhiwen Yang
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Wanwan Li
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
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12
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Modak P, Modak B, Arya A. Probing site-selective doping and charge compensating defects in KMgF 3: insights from a hybrid DFT study. Phys Chem Chem Phys 2023; 25:29968-29981. [PMID: 37902924 DOI: 10.1039/d3cp03966h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2023]
Abstract
Design of optoelectronic materials with tunable properties using activators and defect clusters has become one of the prime interests of current research. In this study, detailed Density Functional Theory based calculations have been presented to investigate the geometries and electronic structures of various possible defect clusters using Eu-KMgF3 as a probe which has numerous technological and industrial applications. Using a more reliable hybrid density functional, we have calculated defect formation energies and thermodynamic transition levels to get knowledge about the site selectivity of Eu. It has been observed that the electronic structure of Eu-KMgF3 is not only dependent on the site of doping but also on the oxidation state of Eu (2+/3+). The present study also investigates the relative stability of different kinds of defects and defect clusters under various synthetic growth conditions. The ultimate aim is to find out the microscopic origin of the fundamental optical properties of Eu-KMgF3 and provide an unambiguous explanation of available experimental results. Thus, it has been revealed that doping with Eu results in the spontaneous formation of intrinsic defects, which contribute to the observed optical behaviour. We have also extended our study to investigate the role of codoping with Li in determining the geometry and electronic structure of Eu-KMgF3 aiming to explain its impact on the optical properties. Thus, a complete presentation of the influence of the activator in the absence and presence of lattice defects on the optical properties of KMgF3 has been accomplished in the current study. We strongly believe that the present study will be helpful in designing tunable phosphor materials by a defect-controlled synthesis strategy.
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Affiliation(s)
- Pampa Modak
- RSD, Atomic Energy Regulatory Board, Mumbai 400 094, India
- Homi Bhabha National Institute, Mumbai 400 094, India.
| | - Brindaban Modak
- Homi Bhabha National Institute, Mumbai 400 094, India.
- Theoretical Chemistry Section, Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
| | - A Arya
- Homi Bhabha National Institute, Mumbai 400 094, India.
- Glass & Advanced Materials Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
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13
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Zetes M, Hada AM, Todea M, Gaina LI, Astilean S, Craciun AM. Dual-emissive solid-state histidine-stabilized gold nanoclusters for applications in white-light generation. NANOSCALE ADVANCES 2023; 5:5810-5818. [PMID: 37881697 PMCID: PMC10597560 DOI: 10.1039/d3na00555k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 09/13/2023] [Indexed: 10/27/2023]
Abstract
The majority of present-day white-light emitting devices (WLEDs) are built upon the use of rare-earth elements, which have a short supply, are expensive and can become extremely toxic. Thus, in this work, we synthesized an eco-friendly, efficient and cheap white-light emitting material (WLEM) based on solid-state histidine-stabilized gold nanoclusters (His-AuNCs), obtained through the lyophilization of microwave-synthesized photoluminescent His-AuNCs. Their morphological and structural characterization was followed by thorough evaluation of their intrinsic solid-state photoluminescence properties via steady-state and time-resolved fluorescence spectroscopy and microscopy, at multiple excitation wavelengths. A white-light emission was observed under UV light excitation due to the two-band broad emission, with maxima at 475 and 520 nm, covering a large area of the visible spectrum. In order to evaluate the purity of the white-light emission we calculated the chromaticity coordinates, at different wavelengths, and displayed them on a CIE (Commision Internationale d'Eclairage) diagram. An excellent value of (0.36, 0.33) was found at 420 nm excitation, which falls within the range of pure white-light emission. Moreover, the His-AuNCs show great photo- and thermo-stability, thus proving their ability to perform as a reliable WLEM with potential use in the development of eco-friendly WLEDs.
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Affiliation(s)
- Markus Zetes
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University 42 T. Laurian Str. 400271 Cluj-Napoca Romania
- Faculty of Physics, Babes-Bolyai University 1 M. Kogalniceanu Str. 400084 Cluj-Napoca Romania
| | - Alexandru-Milentie Hada
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University 42 T. Laurian Str. 400271 Cluj-Napoca Romania
- Faculty of Physics, Babes-Bolyai University 1 M. Kogalniceanu Str. 400084 Cluj-Napoca Romania
| | - Milica Todea
- Nanostructured Materials and Bio-Nano-Interfaces Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University 42 T. Laurian Str. 400271 Cluj-Napoca Romania
- Department of Molecular Sciences, Faculty of Medicine, Iuliu Haţieganu University of Medicine and Pharmacy Cluj-Napoca 400349 Romania
| | - Luiza Ioana Gaina
- Research Center on Fundamental and Applied Heterochemistry, Faculty of Chemistry and Chemical Engineering, Babes-Bolyai University 11 A. Janos Str. 400028 Cluj-Napoca Romania
| | - Simion Astilean
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University 42 T. Laurian Str. 400271 Cluj-Napoca Romania
- Faculty of Physics, Babes-Bolyai University 1 M. Kogalniceanu Str. 400084 Cluj-Napoca Romania
| | - Ana-Maria Craciun
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University 42 T. Laurian Str. 400271 Cluj-Napoca Romania
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14
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Kuhlmann N, Wickleder C. Glowing selenates: novel alkaline earth nanoparticles. RSC Adv 2023; 13:21225-21230. [PMID: 37456537 PMCID: PMC10339161 DOI: 10.1039/d3ra01669b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 06/15/2023] [Indexed: 07/18/2023] Open
Abstract
Up to now, no selenate nanoparticles have been described even though much research has been done on respective oxidic compounds such as sulfates and phosphates. For the first time, alkaline earth selenates of the composition MSeO4 (M = Ca, Sr, Ba) were synthesized as nanoparticles or nanorods as described in this publication. For this purpose, a micro emulsion method was applied using CTAB as a surfactant. Using X-ray diffraction measurements (XRD) phase purity of the materials could be proven. Furthermore, the nanoparticles were analyzed by raster electron microscopy (REM) and dynamic light scattering (DLS) measurements. Finally, the products were doped with small amounts of Eu3+ to obtain luminescent materials. Successful doping was demonstrated by luminescence investigations in the region of 18 000 to 14 000 cm-1 (550-715 nm). Incorporation of Eu3+ led to strong red-emitting nanoparticles. Low temperature measurements at 10 K allowed conclusions about the site symmetry of Eu3+ ions located on the alkaline earth sites.
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Affiliation(s)
- Natalie Kuhlmann
- Department of Chemistry, University of Siegen 57068 Siegen Germany
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15
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Gallyamov EM, Titkov VV, Lebedev VN, Stefanovich SY, Lazoryak BI, Deyneko DV. Mn 2+ Luminescence in Ca 9Zn 1-xMn xNa(PO 4) 7 Solid Solution, 0 ≤ x ≤ 1. MATERIALS (BASEL, SWITZERLAND) 2023; 16:4392. [PMID: 37374575 DOI: 10.3390/ma16124392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 06/02/2023] [Accepted: 06/09/2023] [Indexed: 06/29/2023]
Abstract
The solid solution Ca9Zn1-xMnxNa(PO4)7 (0 ≤ x ≤ 1.0) was obtained by solid-phase reactions under the control of a reducing atmosphere. It was demonstrated that Mn2+-doped phosphors can be obtained using activated carbon in a closed chamber, which is a simple and robust method. The crystal structure of Ca9Zn1-xMnxNa(PO4)7 corresponds to the non-centrosymmetric β-Ca3(PO4)2 type (space group R3c), as confirmed by powder X-ray diffraction (PXRD) and optical second-harmonic generation methods. The luminescence spectra in visible area consist of a broad red emission peak centered at 650 nm under 406 nm of excitation. This band is attributed to the 4T1 → 6A1 electron transition of Mn2+ ions in the β-Ca3(PO4)2-type host. The absence of transitions corresponding to Mn4+ ions confirms the success of the reduction synthesis. The intensity of the Mn2+ emission band in Ca9Zn1-xMnxNa(PO4)7 rising linearly with increasing of x at 0.05 ≤ x ≤ 0.5. However, a negative deviation of the luminescence intensity was observed at x = 0.7. This trend is associated with the beginning of a concentration quenching. At higher x values, the intensity of luminescence continues to increase but at a slower rate. PXRD analysis of the samples with x = 0.2 and x = 0.5 showed that Mn2+ and Zn2+ ions replace calcium in the M5 (octahedral) sites in the β-Ca3(PO4)2 crystal structure. According to Rietveld refinement, Mn2+ and Zn2+ ions jointly occupy the M5 site, which remains the only one for all manganese atoms within the range of 0.05 ≤ x ≤ 0.5. The deviation of the mean interatomic distance (∆l) was calculated and the strongest bond length asymmetry, ∆l = 0.393 Å, corresponds to x = 1.0. The large average interatomic distances between Mn2+ ions in the neighboring M5 sites are responsible for the lack of concentration quenching of luminescence below x = 0.5.
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Affiliation(s)
- Eldar M Gallyamov
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Vladimir V Titkov
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Vladimir N Lebedev
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Sergey Y Stefanovich
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Bogdan I Lazoryak
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Dina V Deyneko
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia
- Laboratory of Arctic Mineralogy and Material Sciences, Kola Science Centre, Russian Academy of Sciences, 184209 Apatity, Russia
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16
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Dong Z, Fei J, Wang T, Li J. Long afterglow particle enables spectral and temporal light management to boost photosynthetic efficiency. J Colloid Interface Sci 2023; 638:76-83. [PMID: 36736120 DOI: 10.1016/j.jcis.2023.01.084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/10/2023] [Accepted: 01/16/2023] [Indexed: 01/21/2023]
Abstract
Herein, we develop a strategy of matched spectral and temporal light management to improve photosynthetic efficiency by co-assembling natural thylakoid membrane (TM) with artificial long afterglow particle (LAP). To be specific, LAP with excellent stability and biocompatibility possesses the capabilities of light conversion and storage, optically-matched with the absorption of TM. These favorable features permit LAP as an additional well-functioned light source of photosynthesis performed by TM. As a consequence, enhanced photosynthesis is achieved after co-assembly, compared with pure TM. Under light, the rates of electron transfer, oxygen yield and adenosine triphosphate (ATP) production in this biohybrid architecture are boosted owing to down-conversion fluorescence emission from LAP. Under dark, persistent phosphorescence emission in charged LAP facilitates continual photosynthesis of TM, while that of pure TM almost stops immediately. This proof-of-concept work opens a new route to augment the photosynthetic efficiency of green plants by utilizing precise light-managed materials.
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Affiliation(s)
- Zhenzhen Dong
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Lab of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jinbo Fei
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Lab of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Tonghui Wang
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Lab of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Junbai Li
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Lab of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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17
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Liu H, Ren DD, Zhu XL, Wu YP, Fu HR. Coordination-driven stacking of carbazole-based molecule for dynamic long-lived room temperature phosphorescence. J SOLID STATE CHEM 2023. [DOI: 10.1016/j.jssc.2023.123983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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18
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Balhara A, Gupta SK, Patra GD, Modak B, Prakash J, Sudarshan K, Mohapatra M. Stabilization of Eu 2+ in Li 2B 4O 7 with the BO 3 network through U 6+ co-doping and defect engineering. Phys Chem Chem Phys 2023; 25:1889-1902. [PMID: 36541249 DOI: 10.1039/d2cp04672e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Owing to the unique 4f-5d transitions and the involvement of 5d electrons, the divalent europium (Eu2+) ion is extensively used as a dopant ion in luminescent materials for phosphor-converted light emitting diodes (pc-LEDs) and other technological applications. Earlier reports in most of the cases have shown that the reduction of Eu3+ to Eu2+ requires very high temperatures and large hydrogen flux. In this study, a co-doping strategy with higher valent U6+ ions was utilized to successfully stabilize Eu2+ ions in the Li2B4O7 (LTB) host with both the BO3 and BO4 network in low H2 flux of only 8%. It is postulated that charge transfer occurs from U to Eu, resulting in the reduction of the charged state of Eu and the reaction probably proceeds via the formation of paramagnetic transient [U5+-Eu3+] species in the co-doped LTB. The same is also believed to be facilitated by the enhanced formation of Li-O type vacancy clusters in co-doped samples and enhanced oxygen vacancies in a reducing atmosphere. We believe this work will pave a new pathway for stabilizing the unusual oxidation state of lanthanides and transition metal ions through co-doping with hexavalent uranium ions.
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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 K Gupta
- Homi Bhabha National Institute, Anushaktinagar, Mumbai-400094, India. .,Radiochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai-400085, India.
| | - G D Patra
- Homi Bhabha National Institute, Anushaktinagar, Mumbai-400094, India. .,Technical Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai-400085, India
| | - Brindaban Modak
- Homi Bhabha National Institute, Anushaktinagar, Mumbai-400094, India. .,Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai-400085, India
| | - J Prakash
- Homi Bhabha National Institute, Anushaktinagar, Mumbai-400094, India. .,Materials Group, Bhabha Atomic Research Centre, Trombay, Mumbai-400085, India
| | - K Sudarshan
- Homi Bhabha National Institute, Anushaktinagar, Mumbai-400094, India. .,Radiochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai-400085, India.
| | - M Mohapatra
- Homi Bhabha National Institute, Anushaktinagar, Mumbai-400094, India. .,Radiochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai-400085, India.
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19
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Rapid Aqueous-Phase Synthesis and Photoluminescence Properties of K0.3Bi0.7F2.4:Ln3+ (Ln = Eu, Tb, Pr, Nd, Sm, Dy) Nanocrystalline Particles. CRYSTALS 2022. [DOI: 10.3390/cryst12070963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Trivalent lanthanides (Ln3+) doped bismuth-based inorganic compounds have attracted considerable interest as promising candidates for next-generation inorganic luminescent materials. Here, a series of K0.3Bi0.7F2.4 (KBF) nanocrystalline particles with controlled morphology have been synthesized through a low-temperature aqueous-phase precipitation method. Using KBF as the host matrix, Eu3+, Tb3+, Pr3+, Nd3+, Sm3+, and Dy3+ ions are introduced to obtain K0.3Bi0.7F2.4:Ln3+ (KBF:Ln) nanophosphors. The as-prepared KBF:Ln nanophosphors exhibit commendable photoluminescence properties, in which multicolor emissions in a single host lattice can be obtained by doping different Ln3+ ions when excited by ultraviolet light. Moreover, the morphology and photoluminescence performance of these nanophosphors remain unchanged under different soaking times in water, showing good stability in a humid environment. The proposed simple and rapid synthesis route, low-cost and nontoxic bismuth-based host matrix, and tunable luminescent colors will lead the way to access these KBF:Ln nanophosphors for appealing applications such as white LEDs and optical thermometry.
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20
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Yang L, Luo J, Gao L, Song B, Tang J. Inorganic Lanthanide Compounds with f-d Transition: From Materials to Electroluminescence Devices. J Phys Chem Lett 2022; 13:4365-4373. [PMID: 35544383 DOI: 10.1021/acs.jpclett.2c00927] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
With the rapid development of the panel display market, demand for efficient light emitters as active layers in electroluminescence (EL) devices has significantly increased. Luminescent inorganic lanthanide compounds (ILCs) with a characteristic f-d transition are particularly preferred for EL devices because of their high photoluminescent quantum yield, short excited-state lifetime, tunable emission spectra, and high thermal stability. In this Perspective, we first present an overview of inorganic lanthanide compounds with an emphasis on the mechanisms and characteristics of f-d emission. Then, the comprehensive advances of lanthanide element-doped inorganic compounds for EL study in recent decades are summarized. Moreover, the recent progress in directly employing ILCs for EL applications and rational improvement strategies in EL performance are highlighted. Last, we summarize the current challenges and opportunities of ILC-based EL devices as well as future improvement directions.
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Affiliation(s)
- Longbo Yang
- Wuhan National Laboratory for Optoelectronics (WNLO) and School of Optical and Electronic Information, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, Hubei 430074, China
| | - Jiajun Luo
- Wuhan National Laboratory for Optoelectronics (WNLO) and School of Optical and Electronic Information, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, Hubei 430074, China
- Optics Valley Laboratory, 1037 Luoyu Road, Wuhan, Hubei 430074, China
| | - Liang Gao
- Wuhan National Laboratory for Optoelectronics (WNLO) and School of Optical and Electronic Information, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, Hubei 430074, China
- Optics Valley Laboratory, 1037 Luoyu Road, Wuhan, Hubei 430074, China
| | - Boxiang Song
- Wuhan National Laboratory for Optoelectronics (WNLO) and School of Optical and Electronic Information, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, Hubei 430074, China
- Optics Valley Laboratory, 1037 Luoyu Road, Wuhan, Hubei 430074, China
| | - Jiang Tang
- Wuhan National Laboratory for Optoelectronics (WNLO) and School of Optical and Electronic Information, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, Hubei 430074, China
- Optics Valley Laboratory, 1037 Luoyu Road, Wuhan, Hubei 430074, China
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Bidwai D, Kumar Sahu N, Dhoble SJ, Mahajan A, Haranath D, Swati G. Review on long afterglow nanophosphors, their mechanism and its application in round-the-clock working photocatalysis. Methods Appl Fluoresc 2022; 10. [PMID: 35483342 DOI: 10.1088/2050-6120/ac6b87] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 04/28/2022] [Indexed: 11/12/2022]
Abstract
Semiconductor assisted photocatalysis is one of the most efficient methods for the degradation of complex organic dyes. A major limiting factor of semiconductor assisted photocatalysis is the requirement of a continuous source of light to perform a redox reaction. One of the upcoming solutions is photon energy-storing long afterglow/persistent phosphors. They are an unusual kind of rechargeable, photon energy capturing/trapping phosphors that can trap charge carriers (electrons/holes) in their meta-stable energy levels, thereby resulting in persistent luminescence. Persistence luminescence from such materials can range from minutes to hours. The coupling of long afterglow phosphors (LAP) with the conventional semiconductor is a promising way to support the photocatalytic process even in dark. In addition, dissimilar band structures of LAPs and semiconductor results in formation of heterojunction which further suppresses the recombination of charge. Such an encouraging idea of LAP for round-the-clock working photocatalytic system is in its premature stage; which is required to be investigated fully. Thus, we present a state-of-art review on the potential materials for assisting round-the-clock photocatalysis, trapping-detrapping mechanism in LAP materials, fabrication strategies and their associated characterization tools. Review also covers LAP materials and their photocatalytic mechanism briefly.
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Affiliation(s)
- Dipti Bidwai
- Centre for Nanotechnology Research, Vellore Institute of Technology, Vellore-632014, India
| | - Niroj Kumar Sahu
- Centre for Nanotechnology Research, Vellore Institute of Technology, Vellore-632014, India
| | - S J Dhoble
- Department of Physics, R. T. M. Nagpur University, Nagpur-440033, India
| | - Ashutosh Mahajan
- Centre for Nanotechnology Research, Vellore Institute of Technology, Vellore-632014, India
| | - D Haranath
- Department of Physics, National Institute of Technology, Warangal 506004, Telangana, India
| | - G Swati
- Centre for Nanotechnology Research, Vellore Institute of Technology, Vellore-632014, India
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22
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Feizbakhsh M, Doosti A, Keshavarzi A. Energy transfer from Bi3+ to Mn2+ doped in oxyfluoride glass and transparent glass-ceramics containing KMgF3. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.122938] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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23
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Green emanating BiOCl:Tb3+ phosphors for strategic development of dermatoglyphics and anti-counterfeiting applications. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109266] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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24
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Hai O, Pei M, Ren Q, Wu X, Yang E, Xu D, Zhu J. Ag nanoparticles significantly improve the slow decay brightness of SrAl 2O 4:Eu 2+,Dy 3+ by the surface plasmon effect. Dalton Trans 2022; 51:2287-2295. [PMID: 35040842 DOI: 10.1039/d1dt03923g] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Long afterglow luminescence material is an important energy storage material. For large-scale applications, the low afterglow brightness especially in the slow decay process is a weak point. At present, the methods to improve the afterglow performance are mainly focused on the study of defects and luminescence centers in the matrix. Herein, from the point of improving the utilization rate of luminescence center and traps, Ag nanoparticles, which can introduce the surface plasmon effect (SPE) are deposited on the surface of SrAl2O4:Eu2+,Dy3+ (SAO). The results show that the afterglow intensity of SrAl2O4:Eu2+,Dy3+ is enhanced, and the luminescence intensity in the slow decay process is enhanced by about 100%, which is significant for SrAl2O4:Eu2+,Dy3+. Moreover, we also solve the stability water-resistance of Ag/SrAl2O4:Eu2+,Dy3+ by constructing Ag/SrAl2O4:Eu2+,Dy3+@SiO2 composite material. In this study, we explained the enhancement mechanism of Ag/SrAl2O4:Eu2+,Dy3+ and provided a new method for enhancing the afterglow performance of SrAl2O4:Eu2+,Dy3+.
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Affiliation(s)
- Ou Hai
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an, 710021, China.
| | - Mengkang Pei
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an, 710021, China.
| | - Qiang Ren
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an, 710021, China.
| | - Xiulan Wu
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an, 710021, China.
| | - Enlong Yang
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an, 710021, China.
| | - Dong Xu
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, China.,State Key Laboratory of Optical Fiber and Cable Manufacture Technology, Yangtze Optical Fibre and Cable Joint Stock Limited Company, Wuhan, China
| | - Jianfeng Zhu
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an, 710021, China.
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25
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Liang P, Li L, Shen T, Lian W, Liu Z. Preparation of M2B5O9Cl:Eu2+ (M=Sr, Ca) blue phosphors by a facile low-temperature self-reduction method and their enhanced luminescent properties. J RARE EARTH 2022. [DOI: 10.1016/j.jre.2022.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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26
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Wang C, Lv Q, Ma J, Li Y, Shao B, Zhao X, Zhu G. A novel single-phased white light emitting phosphor with single Eu2+ doped whitlockite structure. ADV POWDER TECHNOL 2022. [DOI: 10.1016/j.apt.2021.103394] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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27
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Crystal-field mediated electronic transitions of EuS up to 35 GPa. Sci Rep 2022; 12:1217. [PMID: 35075233 PMCID: PMC8786971 DOI: 10.1038/s41598-022-05321-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 01/07/2022] [Indexed: 11/08/2022] Open
Abstract
An advanced experimental and theoretical model to explain the correlation between the electronic and local structure of Eu[Formula: see text] in two different environments within a same compound, EuS, is presented. EuX monochalcogenides (X: O, S, Se, Te) exhibit anomalies in all their properties around 14 GPa with a semiconductor to metal transition. Although it is known that these changes are related to the [Formula: see text] [Formula: see text] [Formula: see text] electronic transition, no consistent model of the pressure-induced modifications of the electronic structure currently exists. We show, by optical and x-ray absorption spectroscopy, and by ab initio calculations up to 35 GPa, that the pressure evolution of the crystal field plays a major role in triggering the observed electronic transitions from semiconductor to the half-metal and finally to the metallic state.
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28
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Lin XS, Yu Y, Zhou L, He L, Chen T, Sun QF. Mesoporous Silica Nanoparticles-Embedded Lanthanide Organic Polyhedra for Enhanced Stability, Luminescence and Cell Imaging. Dalton Trans 2022; 51:4836-4842. [DOI: 10.1039/d1dt04313g] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report here a simple but efficient “ship-in-a-bottle” synthetic strategy for increasing the stability and luminescence performance of LOPs by embedding them into mesoporous silica nanoparticles (MSNs). Three types of...
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29
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Zhao J, Zhou Z, Li G, Stang PJ, Yan X. Light-emitting self-assembled metallacages. Natl Sci Rev 2021; 8:nwab045. [PMID: 34691672 PMCID: PMC8288187 DOI: 10.1093/nsr/nwab045] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 02/13/2021] [Accepted: 02/13/2021] [Indexed: 11/26/2022] Open
Abstract
Coordination-driven self-assembly of metallacages has garnered significant interest because of their 3D layout and cavity-cored nature. The well-defined, highly tunable metallacage structures render them particularly attractive for investigating the properties of luminophores, as well as for inducing novel photophysical characters that enable widespread applications. In this review, we summarize the recent advances in synthetic methodologies for light-emitting metallacages, and highlight some representative applications of these metallacages. In particular, we focus on the favorable photophysical properties—including high luminescence efficiency in various physical states, good modularity in photophysical properties and stimulus responsiveness—that have resulted from incorporating ligands displaying aggregation-induced emission (AIE) into metallacages. These features show that the synergy between carrying out coordination-driven self-assembly and using luminophores with novel photophysical characteristics like AIE could stimulate the development of supramolecular luminophores for applications in fields as diverse as sensing, biomedicine and catalysis.
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Affiliation(s)
- Jun Zhao
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Zhixuan Zhou
- Department of Chemistry, University of Utah, Salt Lake City, UT 84112, USA
| | - Guangfeng Li
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Peter J Stang
- Department of Chemistry, University of Utah, Salt Lake City, UT 84112, USA
| | - Xuzhou Yan
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai 200240, China
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30
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Zhao D, Song L, Hou L. Efficient Persistent Luminescence Tuning Using a Cyclodextrin Inclusion Complex as Efficient Light Conversion Materials. ACS OMEGA 2021; 6:25585-25593. [PMID: 34632215 PMCID: PMC8495874 DOI: 10.1021/acsomega.1c03670] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 09/09/2021] [Indexed: 05/31/2023]
Abstract
Developing an appropriate method to broaden the color of long persistent luminescence materials has important scientific significance and practical value but remains a great challenge. Herein, we have developed a unique strategy to fine-tune the persistent luminescence using the inclusion complex of rhodamine 6G with (2-hydroxypropyl)-β-cyclodextrin as efficient light conversion materials. The emitting color of the novel persistent luminescence material could be tuned from green to orange by changing the concentration of the light conversion agent. Furthermore, afterglow decay measurements showed that the initial afterglow brightness is 9.65 cd/m2, and the initial afterglow brightness gradually decreased as the cyclodextrin inclusion compound coating increased. This design concept introduces a new perspective for broadening the luminescence color of afterglow phosphors, which may open up new opportunities for persistent luminescence materials toward many emerging applications.
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Affiliation(s)
- Dan Zhao
- College of Chemical
Engineering, Fuzhou University, Fuzhou, Fujian 350108, China
- CAS Key
Laboratory of Design and Assembly of Functional Nanostructures, and
Fujian Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese
Academy of Sciences, Fuzhou, Fujian 350002, China
- Fujian Science & Technology Innovation
Laboratory for Optoelectronic Information of China, Fuzhou 350002, China
- Xiamen Institute of Rare Earth Materials, Haixi Institute, Chinese Academy of Sciences, Xiamen 361021, China
- Xiamen Key Laboratory of Rare Earth Photoelectric
Functional Materials, Chinese Academy of
Sciences, Xiamen 361021, China
| | - Lijun Song
- CAS Key
Laboratory of Design and Assembly of Functional Nanostructures, and
Fujian Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese
Academy of Sciences, Fuzhou, Fujian 350002, China
- Fujian Science & Technology Innovation
Laboratory for Optoelectronic Information of China, Fuzhou 350002, China
- Xiamen Institute of Rare Earth Materials, Haixi Institute, Chinese Academy of Sciences, Xiamen 361021, China
- Xiamen Key Laboratory of Rare Earth Photoelectric
Functional Materials, Chinese Academy of
Sciences, Xiamen 361021, China
| | - Linxi Hou
- College of Chemical
Engineering, Fuzhou University, Fuzhou, Fujian 350108, China
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31
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Chen HX, Ren YC, Li ZJ, Yang YG. Synthesis and luminescence performance of Tb3+/Eu3+ codoped SrLaGa3O7 phosphors. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2021.138911] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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32
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Wu XS, Zhang R, Liu JL. An unusual Pb8 clusters based coordination polymer with room-temperature orange phosphorescence. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2021.122298] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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33
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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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34
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Siai A, Ströbele M, Enseling D, Jüstel T, Meyer H. Solid‐State Synthesis of (Ph
4
P)MI
3
(M=Eu
2+
, Sr
2+
, Sn
2+
) and Investigation of Photoluminescence Properties of Green Emitting Phosphor. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100059] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Amira Siai
- Section for Solid State and Theoretical Inorganic Chemistry Institute of Inorganic Chemistry Eberhard Karls University Tübingen Auf der Morgenstelle 18 72076 Tübingen Germany
- Center of Researches and Technologies of Energy (CRTEn) Laboratory of Nanomaterials and Systems for Renewable Energies B.P N° 95 2050- Hammam Lif Tunisia
| | - Markus Ströbele
- Section for Solid State and Theoretical Inorganic Chemistry Institute of Inorganic Chemistry Eberhard Karls University Tübingen Auf der Morgenstelle 18 72076 Tübingen Germany
| | - David Enseling
- University of Applied Sciences of Münster Laboratory for Applied Materials Science Stegerwaldstrasse 39 48565 Steinfurt Germany
| | - Thomas Jüstel
- University of Applied Sciences of Münster Laboratory for Applied Materials Science Stegerwaldstrasse 39 48565 Steinfurt Germany
| | - Hans‐Jürgen Meyer
- Section for Solid State and Theoretical Inorganic Chemistry Institute of Inorganic Chemistry Eberhard Karls University Tübingen Auf der Morgenstelle 18 72076 Tübingen Germany
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35
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A novel [Dy4(OH)4]-based porous coordination polymer with double-wall structure: Topology structure, fluorescence and magnetic properties. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.108531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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36
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Liang P, Lian WL, Liu ZH. Highly efficient blue-emitting phosphor of Sr[B 8O 11(OH) 4]:Eu 2+ prepared by a self-reduction method. Chem Commun (Camb) 2021; 57:3371-3374. [PMID: 33683226 DOI: 10.1039/d0cc08027f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
A highly efficient blue-emitting phosphor of Sr[B8O11(OH)4]:xEu2+ was synthesized though a medium-high temperature boric acid melting method by means of a self-reduction mechanism. The quantum yield and color purity of Sr[B8O11(OH)4]:6%Eu2+ are both as high as 99%. The PL intensity of Sr[B8O11(OH)4]:6%Eu2+ at 150 °C remains 84% of that at 25 °C.
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Affiliation(s)
- Pan Liang
- Key Laboratory for Macromolecular Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, People's Republic of China.
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37
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Gao R, Kodaimati MS, Yan D. Recent advances in persistent luminescence based on molecular hybrid materials. Chem Soc Rev 2021; 50:5564-5589. [PMID: 33690765 DOI: 10.1039/d0cs01463j] [Citation(s) in RCA: 170] [Impact Index Per Article: 56.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Molecular persistently luminescent materials have received recent attention due to their promising applications in optical displays, biological imaging, chemical sensing, and security systems. In this review, we systematically summarize recent advances in establishing persistently luminescent materials-specifically focusing on materials composed of molecular hybrids for the first time. We describe the main strategies for synthesizing these hybrid materials, namely: (i) inorganics/organics, (ii) organics/organics, and (iii) organics/polymer systems and demonstrate how molecular hybrids provide synergistic effects, while improving luminescence lifetimes and efficiencies. These hybrid materials promote new methods for tuning key physical properties such as singlet-triplet excited state energies by controlling the chemical interactions and molecular orientations in the solid state. We review new advances in these materials from the perspective of examining experimental and theoretical approaches to room-temperature phosphorescence and thermally-activated delayed fluorescence. Finally, this review concludes by summarizing the current challenges and future opportunities for these hybrid materials.
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Affiliation(s)
- Rui Gao
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, and Key Laboratory of Radiopharmaceuticals, Ministry of Education, Beijing Normal University, Beijing 100875, People's Republic of China.
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38
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Zheng M, Wang Z, Wang X, Cui J, Yao Y, Zhang M, Yang Z, Cao L, Li P. Recent progress of effect of crystal structure on luminescence properties of Ce 3+–Eu 2+ Co-doped phosphors. RSC Adv 2021; 11:26354-26367. [PMID: 35479467 PMCID: PMC9037332 DOI: 10.1039/d1ra04700k] [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: 06/17/2021] [Accepted: 07/20/2021] [Indexed: 12/25/2022] Open
Abstract
Currently, the mechanism of Ce3+–Eu2+ ET is frequently used to obtain color adjustable or white phosphors. Correspondingly, the ET efficiency from Ce3+ to Eu2+ becomes an important indication of the luminescent properties of phosphors. However, the ET efficiency calculated using the formula does not always match the emission spectra; the transmission efficiency of Ce3+ is high, but the emission efficiency of Eu2+ is low, depending on our investigation results. In addition to this problem, here we mainly review, on the basis of substantial examples, how to boost the actual ET efficiency of Ce3+-to-Eu2+ and thus to improve the luminescent properties of phosphors through the rational design of layered crystal structure and the way of selective occupation of activator ions. Moreover, the possible physical mechanisms are proposed. Effect of crystal structure on luminescence properties of Ce3+–Eu2+ co-doped phosphors.![]()
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Affiliation(s)
- Mingjie Zheng
- College of Physics Science & Technology
- Hebei Key Lab of Optic-Electronic Information and Materials
- Hebei University
- Baoding 071002
- China
| | - Zhijun Wang
- College of Physics Science & Technology
- Hebei Key Lab of Optic-Electronic Information and Materials
- Hebei University
- Baoding 071002
- China
| | - Xuejiao Wang
- College of Physics Science & Technology
- Hebei Key Lab of Optic-Electronic Information and Materials
- Hebei University
- Baoding 071002
- China
| | - Jia Cui
- College of Physics Science & Technology
- Hebei Key Lab of Optic-Electronic Information and Materials
- Hebei University
- Baoding 071002
- China
| | - Yao Yao
- College of Physics Science & Technology
- Hebei Key Lab of Optic-Electronic Information and Materials
- Hebei University
- Baoding 071002
- China
| | - Mengya Zhang
- College of Physics Science & Technology
- Hebei Key Lab of Optic-Electronic Information and Materials
- Hebei University
- Baoding 071002
- China
| | - Zhibin Yang
- College of Physics Science & Technology
- Hebei Key Lab of Optic-Electronic Information and Materials
- Hebei University
- Baoding 071002
- China
| | - Lingwei Cao
- College of Physics Science & Technology
- Hebei Key Lab of Optic-Electronic Information and Materials
- Hebei University
- Baoding 071002
- China
| | - Panlai Li
- College of Physics Science & Technology
- Hebei Key Lab of Optic-Electronic Information and Materials
- Hebei University
- Baoding 071002
- China
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39
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Berends AC, van de Haar MA, Krames MR. YAG:Ce 3+ Phosphor: From Micron-Sized Workhorse for General Lighting to a Bright Future on the Nanoscale. Chem Rev 2020; 120:13461-13479. [PMID: 33164489 DOI: 10.1021/acs.chemrev.0c00618] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The renowned yellow phosphor yttrium aluminum garnet (YAG) doped with trivalent cerium has found its way into applications in many forms: as powder of micron sized crystals, as a ceramic, and even as a single crystal. However, additional technological advancement requires providing this material in new form factors, especially in terms of particle size. Where many materials have been developed on the nanoscale with excellent optical properties (e.g., semiconductor quantum dots, perovskite nanocrystals, and rare earth doped phosphors), it is surprising that the development of nanocrystalline YAG:Ce is not as mature as for these other materials. Control over size and shape is still in its infancy, and optical properties are not yet at the same level as other materials on the nanoscale, even though YAG:Ce microcrystalline materials exceed the performance of most other materials. This review highlights developments in synthesis methods and mechanisms and gives an overview of the state of the art morphologies, particle sizes, and optical properties of YAG:Ce on the nanoscale.
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Affiliation(s)
- Anne C Berends
- Seaborough Research BV, Matrix VII Innovation Center, Science Park 106, 1098 XG Amsterdam, The Netherlands
| | - Marie Anne van de Haar
- Seaborough Research BV, Matrix VII Innovation Center, Science Park 106, 1098 XG Amsterdam, The Netherlands
| | - Michael R Krames
- Seaborough Research BV, Matrix VII Innovation Center, Science Park 106, 1098 XG Amsterdam, The Netherlands.,Arkesso LLC, 2625 Middlefield Road, No. 687, Palo Alto, California 94306, United States
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40
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Schillmöller T, Ruth PN, Herbst‐Irmer R, Stalke D. Analysis of Solid-State Luminescence Emission Amplification at Substituted Anthracenes by Host-Guest Complex Formation. Chemistry 2020; 26:17390-17398. [PMID: 32779830 PMCID: PMC7821099 DOI: 10.1002/chem.202003017] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Indexed: 11/10/2022]
Abstract
Small robust organic molecules showing solid-state luminescence are promising candidates for optoelectronic materials. Herein, we investigate a series of diphenylphosphanyl anthracenes [9-PPh2 -10-R-(C14 H8 )] and their sulfur oxidised analogues. The oxidation causes drastic changes in the molecular structure as the new orientation of the bulky (S)PPh2 substituent induces a strong butterfly bent structure of the anthracene core, which triggers a strong bathochromic shift resulting in a green solid-state fluorescence. As the emission properties change only slightly upon aggregation the origin of the emission is attributed to a typical monomer fluorescence. The host-guest complexes of [9-(S)PPh2 -10-Ethyl-(C14 H8 )] with four basic arenes reveal an emission enhancement up to five-times higher quantum yields compared to the pure host. Less interchromophoric interactions and a restriction of intramolecular motion within the host molecules due to fixation by weak C-H⋅⋅⋅π interactions with the co-crystallised arene are responsible for that emission enhancement.
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Affiliation(s)
- Timo Schillmöller
- Institut für Anorganische ChemieGeorg-August-Universität GöttingenTammannstraße 437077GöttingenGermany
| | - Paul Niklas Ruth
- Institut für Anorganische ChemieGeorg-August-Universität GöttingenTammannstraße 437077GöttingenGermany
| | - Regine Herbst‐Irmer
- Institut für Anorganische ChemieGeorg-August-Universität GöttingenTammannstraße 437077GöttingenGermany
| | - Dietmar Stalke
- Institut für Anorganische ChemieGeorg-August-Universität GöttingenTammannstraße 437077GöttingenGermany
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41
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Marin R, Jaque D. Doping Lanthanide Ions in Colloidal Semiconductor Nanocrystals for Brighter Photoluminescence. Chem Rev 2020; 121:1425-1462. [DOI: 10.1021/acs.chemrev.0c00692] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Riccardo Marin
- Fluorescence Imaging Group (FIG), Departamento de Física de Materiales, Facultad de Ciencias, Universidad Autónoma de Madrid, C/Francisco Tomás y Valiente 7, Madrid 28049, Spain
| | - Daniel Jaque
- Fluorescence Imaging Group (FIG), Departamento de Física de Materiales, Facultad de Ciencias, Universidad Autónoma de Madrid, C/Francisco Tomás y Valiente 7, Madrid 28049, Spain
- Nanobiology Group, Instituto Ramón y Cajal de Investigación, Sanitaria Hospital Ramón y Cajal, Ctra. De Colmenar Viejo, Km. 9100, 28034 Madrid, Spain
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42
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Galimov DI, Yakupova SM, Vasilyuk KS, Sabirov DS, Bulgakov RG. Effect of coordination environment of Eu2+ ion on the 5d-4f luminescence of molecular compounds EuL2(THF) (L = Cl, Br, I, NO3, Ac, fod, tmhd, and acac; x = 0, 2). J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2020.112839] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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43
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Ye J, Sun J, Zhang T, Guo Z. Fabrication and luminescence of Ca2LaTaO6:RE3+ (RE = Sm, Eu and Pr) phosphors. Chem Phys Lett 2020. [DOI: 10.1016/j.cplett.2020.137923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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44
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Suta M, Lavoie‐Cardinal F, Wickleder C. Unterschätzte Farbzentren: Defekte als nützliche Reduktionsmittel in Lanthanid‐dotierten lumineszenten Materialien. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202002009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Markus Suta
- Anorganische ChemieDepartment für ChemieNaturwissenschaftlich-Technische FakultätUniversität Siegen Adolf-Reichwein-Straße 2 57068 Siegen Deutschland
- Derzeitige Adresse: Condensed Matter and InterfacesDebye Institute for Nanomaterials ScienceDepartment of ChemistryUtrecht University Princetonplein 1 3584 CC Utrecht Niederlande
| | - Flavie Lavoie‐Cardinal
- Anorganische ChemieDepartment für ChemieNaturwissenschaftlich-Technische FakultätUniversität Siegen Adolf-Reichwein-Straße 2 57068 Siegen Deutschland
- Derzeitige Adresse: CERVO Brain Research Center 2601 de la Canardière Québec QC GIJ 2G3 Kanada
| | - Claudia Wickleder
- Anorganische ChemieDepartment für ChemieNaturwissenschaftlich-Technische FakultätUniversität Siegen Adolf-Reichwein-Straße 2 57068 Siegen Deutschland
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45
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Suta M, Lavoie‐Cardinal F, Wickleder C. Underestimated Color Centers: Defects as Useful Reducing Agents in Lanthanide-Activated Luminescent Materials. Angew Chem Int Ed Engl 2020; 59:10949-10954. [PMID: 32147942 PMCID: PMC7318186 DOI: 10.1002/anie.202002009] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Indexed: 02/02/2023]
Abstract
Inorganic hosts, such as SrB4 O7 or certain nitrides, intrinsically stabilize Eu2+ even when the dopant is an Eu3+ -based precursor and reducing conditions are not employed in the synthesis. Although this concept is well known in the synthesis of phosphorescent materials, the mechanistic details are scarcely understood. Herein, we demonstrate that trapped charge carriers, such as color centers, can also act as redox partners to stabilize certain oxidation states of activators. Eu-activated CsMgCl3 and CsMgBr3 are used as examples. Upon doping with EuCl3 and in the absence of reducing conditions during the synthesis, dominant cyan or green luminescence from Eu2+ ions was observed. Photoluminescence spectroscopy at 10 K revealed that the reduction is correlated to color centers localized at defects. Although defects are typically undesired in phosphors, we have shown that their role may be underestimated and they could be used on purpose in the preparation of selected inorganic phosphors.
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Affiliation(s)
- Markus Suta
- Inorganic ChemistryDepartment of ChemistryFaculty of Science & TechnologyUniversity of SiegenAdolf-Reichwein-Strasse 257068SiegenGermany
- Current address: Condensed Matter and InterfacesDebye Institute for Nanomaterials ScienceDepartment of ChemistryUtrecht UniversityPrincetonplein 13584 CCUtrechtThe Netherlands
| | - Flavie Lavoie‐Cardinal
- Inorganic ChemistryDepartment of ChemistryFaculty of Science & TechnologyUniversity of SiegenAdolf-Reichwein-Strasse 257068SiegenGermany
- Current address: CERVO Brain Research Center2601 de la CanardièreQuébecQCGIJ 2G3Canada
| | - Claudia Wickleder
- Inorganic ChemistryDepartment of ChemistryFaculty of Science & TechnologyUniversity of SiegenAdolf-Reichwein-Strasse 257068SiegenGermany
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Terraschke H, Franzreb M, Wickleder C. Magnetism and Afterglow United: Synthesis of Novel Double Core-Shell Eu 2+ -Doped Bifunctional Nanoparticles. Chemistry 2020; 26:6833-6838. [PMID: 31922631 PMCID: PMC7318628 DOI: 10.1002/chem.201904551] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 12/14/2019] [Indexed: 01/16/2023]
Abstract
Afterglow-magnetic nanoparticles (NPs) offer enormous potential for bioimaging applications, as they can be manipulated by a magnetic field, as well as emitting light after irradiation with an excitation source, thus distinguishing themselves from fluorescent living cells. In this work, a novel double core-shell strategy is presented, uniting co-precipitation with combustion synthesis routes to combine an Fe3 O4 magnetic core (≈15 nm) with an afterglow SrAl2 O4 :Eu2+ ,Dy3+ outer coat (≈10 nm), and applying a SiO2 protective middle layer (≈16 nm) to reduce the luminescence quenching caused by the Fe core ions. The resulting Fe3 O4 @SiO2 @SrAl2 O4 :Eu2+ ,Dy3+ NPs emit green light attributed to the 4f6 5d1 →4f7 (8 S7/2 ) transition of Eu2+ under UV radiation and for a few seconds afterwards. This bifunctional nanocomposite can potentially be applied for the detection and separation of cells or diagnostically relevant molecules.
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Affiliation(s)
- Huayna Terraschke
- Inorganic ChemistryCμ—Center for Micro- and NanochemistryEngineering, Science and Technology FacultyUniversity of SiegenAdolf-Reichwein-Str. 257068SiegenGermany
- Current affiliation: Institut für Anorganische ChemieChristian-Albrechts-Universität zu KielMax-Eyth-Str. 224118KielGermany
| | - Matthias Franzreb
- Institute of Functional InterfacesKarlsruhe Institute of TechnologyHermann-von Helmholtz-Platz 176344Eggenstein-LeopoldshafenGermany
| | - Claudia Wickleder
- Inorganic ChemistryCμ—Center for Micro- and NanochemistryEngineering, Science and Technology FacultyUniversity of SiegenAdolf-Reichwein-Str. 257068SiegenGermany
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Gramm VK, Smets D, Grzesiak I, Block T, Pöttgen R, Suta M, Wickleder C, Lorenz T, Ruschewitz U. Eu(O 2 C-C≡C-CO 2 ): An Eu II Containing Anhydrous Coordination Polymer with High Stability and Negative Thermal Expansion. Chemistry 2020; 26:2726-2734. [PMID: 31774598 PMCID: PMC7065108 DOI: 10.1002/chem.201904966] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Indexed: 11/11/2022]
Abstract
Anhydrous EuII -acetylenedicarboxylate (EuADC; ADC2- = - O2 C-C≡C-CO2 - ) was synthesized by reaction of EuBr2 with K2 ADC or H2 ADC in degassed water under oxygen-free conditions. EuADC crystallizes in the SrADC type structure (I41 /amd, Z=4) forming a 3D coordination polymer with a diamond-like arrangement of Eu2+ nodes (msw topology including the connecting ADC2- linkers). Deep orange coloured EuADC is stable in air and starts decomposing upon heating in an argon atmosphere only at 440 °C. Measurements of the magnetic susceptibilities (μeff =7.76 μB ) and 151 Eu Mössbauer spectra (δ=-13.25 mm s-1 at 78 K) confirm the existence of Eu2+ cations. Diffuse reflectance spectra indicate a direct optical band gap of Eg =2.64 eV (470 nm), which is in accordance with the orange colour of the material. Surprisingly, EuADC does not show any photoluminescence under irradiation with UV light of different wavelengths. Similar to SrADC, EuADC exhibits a negative thermal volume expansion below room temperature with a volume expansion coefficient αV =-9.4(12)×10-6 K-1 .
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Affiliation(s)
- Verena K Gramm
- Department of Chemistry, University of Cologne, Greinstraße 6, 50939, Köln, Germany
| | - Daniel Smets
- Department of Chemistry, University of Cologne, Greinstraße 6, 50939, Köln, Germany
| | - Ireneus Grzesiak
- Department of Chemistry, University of Cologne, Greinstraße 6, 50939, Köln, Germany
| | - Theresa Block
- Institut für Anorganische und Analytische Chemie, WWU Münster, Corrensstraße 30, 48149, Münster, Germany
| | - Rainer Pöttgen
- Institut für Anorganische und Analytische Chemie, WWU Münster, Corrensstraße 30, 48149, Münster, Germany
| | - Markus Suta
- Anorganische Chemie, Universität Siegen, Adolf-Reichwein-Straße, 57068, Siegen, Germany.,current affiliation: Debye Institute for Nanomaterials Science, Universiteit Utrecht, Princetonplein 1, 3584 CC, Utrecht, The Netherlands
| | - Claudia Wickleder
- Anorganische Chemie, Universität Siegen, Adolf-Reichwein-Straße, 57068, Siegen, Germany
| | - Thomas Lorenz
- Institute of Physics II, University of Cologne, Zülpicher Straße 77, 50937, Köln, Germany
| | - Uwe Ruschewitz
- Department of Chemistry, University of Cologne, Greinstraße 6, 50939, Köln, Germany
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48
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Kang T, Lee S, Kim T, Kim J. Efficient Luminescence of Sr 2Si 5N 8:Eu 2+ nanophosphor and its film applications to LED and Solar cell as a downconverter. Sci Rep 2020; 10:1475. [PMID: 32001791 PMCID: PMC6992749 DOI: 10.1038/s41598-020-58469-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Accepted: 01/13/2020] [Indexed: 01/05/2023] Open
Abstract
Here we present the synthesis of the efficient nanophosphor Sr2Si5N8:Eu2+ (D50 = 144 nm) by a simple milling approach, its strong Rayleigh scattering, and its film applications to white LED and silicon solar cell as a downshifting medium. The final nanophosphor product showed the quantum efficiency comparable to the bulk phosphor which is, to our knowledge, the highest record of nitride nanophosphors. Especially the nanophosphor showed the more tail emission at the shorter-wavelength side of the emission spectrum and the faster thermal quenching with the more spectral broadening along with the temperature due to Rayleigh scattering. Also the lowering in the excitation spectrum was observed due to lower absorbance. Finally, the nanophosphor-dispersed polyvinyl alcohol (PVA) film was made, and its applications to white LED and silicon solar cell as a downshifting medium demonstrated that it gave the high color rendering property in white LED in spite of still lower luminous efficiency, and it caused the increase in efficiency of silicon solar cell.
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Affiliation(s)
- Taewook Kang
- Interdisciplinary Program of LED Convergence, Pukyong National University, Busan, 48513, Republic of Korea
| | - Sunghoon Lee
- Cell Bio Korea Co. Ltd., Seoul, 07547, Republic of Korea
| | - Taehoon Kim
- Ujin materials, Busan, 48547, Republic of Korea
| | - Jongsu Kim
- Interdisciplinary Program of LED Convergence, Pukyong National University, Busan, 48513, Republic of Korea. .,Department of Display and Science Engineering, Pukyong National University, Busan, 48513, Republic of Korea.
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49
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Ramanantoanina H, Merzoud L, Muya JT, Chermette H, Daul C. Electronic Structure and Photoluminescence Properties of Eu(η 9-C 9H 9) 2. J Phys Chem A 2020; 124:152-164. [PMID: 31769978 DOI: 10.1021/acs.jpca.9b09755] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The electronic structure of Eu2+ compounds results from a complex combination of strongly correlated electrons and relativistic effects as well as weak ligand-field interaction. There is tremendous interest in calculating the electronic structure as nowadays the Eu2+ ion is becoming more and more crucial, for instance, in lighting technologies. Recently, interest in semiempirical methods to qualitatively evaluate the electronic structure and to model the optical spectra has gained popularity, although the theoretical methods strongly rely upon empirical inputs, hindering their prediction capabilities. Besides, ab initio multireference models are computationally heavy and demand very elaborative theoretical background. Herein, application of the ligand-field density functional theory (LFDFT) method that is recently available in the Amsterdam Modeling Suite is shown: (i) to elucidate the electronic structure properties on the basis of the multiplet energy levels of Eu configurations 4f7 and 4f65d1 and (ii) to model the optical spectra quite accurately if compared to the conventional time-dependent density functional theory tool. We present a theoretical study of the molecular Eu(η9-C9H9)2 complex and its underlying photoluminescence properties with respect to the Eu 4f-5d electron transitions. We model the excitation and emission spectra with good agreement with the experiments, opening up the possibility of modeling lanthanides in complex environment like nanomaterials by means of LFDFT at much-reduced computational resources and cost.
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Affiliation(s)
| | - Lynda Merzoud
- Institut Sciences Analytiques , Université de Lyon, Université de Lyon 1, UMR CNRS 5280 , 5 rue de la Doua , 69100 Villeurbanne , France
| | - Jules Tshishimbi Muya
- Department of Chemistry , Hanyang University , 222 Wangsimni-ro , Seongdong-gu , Seoul 04763 , Republic of Korea.,Department of Chemistry, Faculty of Sciences , University of Kinshasa , Kinshasa , DR Congo
| | - Henry Chermette
- Institut Sciences Analytiques , Université de Lyon, Université de Lyon 1, UMR CNRS 5280 , 5 rue de la Doua , 69100 Villeurbanne , France
| | - Claude Daul
- Department of Chemistry , University of Fribourg , CH-1700 Fribourg , Switzerland
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50
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Schillmöller T, Ruth PN, Herbst-Irmer R, Stalke D. Three colour solid-state luminescence from positional isomers of facilely modified thiophosphoranyl anthracenes. Chem Commun (Camb) 2020; 56:7479-7482. [DOI: 10.1039/d0cc02585b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Three positional isomers of thiophosphoranyl anthracene were synthesized and their divers photophysical properties were investigated.
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Affiliation(s)
- Timo Schillmöller
- Institut für Anorganische Chemie
- Georg-August-Universität Göttingen
- 37077 Göttingen
- Germany
| | - Paul Niklas Ruth
- Institut für Anorganische Chemie
- Georg-August-Universität Göttingen
- 37077 Göttingen
- Germany
| | - Regine Herbst-Irmer
- Institut für Anorganische Chemie
- Georg-August-Universität Göttingen
- 37077 Göttingen
- Germany
| | - Dietmar Stalke
- Institut für Anorganische Chemie
- Georg-August-Universität Göttingen
- 37077 Göttingen
- Germany
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