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学者姓名:李凌云
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Lanthanide ion contained metal-organic frameworks (MOFs) have garnered significant attention in the fields of solid-state lighting and chemical sensing due to their porous structure and distinctive optical properties. However, they also present challenges because of the limited photoluminescence (PL) intensity resulting from the parity-forbidden f-f transitions of lanthanide ions. Herein, the study reports a new heterometallic MOFs Ln3Li2L4 (Li-Ln-MOF, Ln = Y, Eu, Tb and Dy, L = deprotonated 1,3,5-tris(4-carboxyphenyl)benzene) with a Brunauer-Emmett-Teller (BET) surface area of 774.1 m2/g. The porous crystal structure of Li-Ln-MOF is characterized by three kinds of channels interpenetrating with each other. By employing ligand alternation and lanthanide ion alloying strategies, Li-Y1-xEux-MOF1 crystal isostructural with Li-Ln-MOF is synthesized by using 2,4,6-tris(4-carboxyphenyl)-1,3,5-triazine (H3TATB) as ligand. The Li-Y0.7Eu0.3-MOF1 crystal excels in the comprehensive performance with a BET surface area of 858.8 m2 g-1 and a near-unity PL quantum yield. The time density functional theory and natural transition orbitals calculations unravel that the outstanding optical properties Li-Y0.7Eu0.3-MOF1 originates from the charge transfer between TATB3- and Eu3+. Benefiting from the excellent comprehensive performance of Li-Y1-xEux-MOF1, the study reveals their potentials as single-composition white-light emission and fluorescent sensing probe for the detection of nitrobenzene. A strategy via ligand alteration is developed to achieve a near-unity photoluminescence quantum yield in lanthanide metal-organic frameworks (Ln-MOFs) with a porosity of up to 53.6%. Mechanistic investigation through theoretical calculation and time-resolved spectra unravel that Ln-MOF displayed outstanding optical properties ascribed to the charge transfer from the triple excited state of ligand to the Ln3+. image
Keyword :
fluorescent sensing fluorescent sensing lanthanide-organic frameworks lanthanide-organic frameworks ligand alteration ligand alteration photoluminescence photoluminescence white-light emission white-light emission
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GB/T 7714 | Zhang, Wei , Wang, En-Ting , Li, Xinhao et al. Lithium-Lanthanide Heterometallic Organic Frameworks with Near-Unity Photoluminescence Quantum Yields for Single-Composition White-Light Emission and Fluorescent Sensing on Nitrobenzene [J]. | ADVANCED OPTICAL MATERIALS , 2024 , 12 (21) . |
MLA | Zhang, Wei et al. "Lithium-Lanthanide Heterometallic Organic Frameworks with Near-Unity Photoluminescence Quantum Yields for Single-Composition White-Light Emission and Fluorescent Sensing on Nitrobenzene" . | ADVANCED OPTICAL MATERIALS 12 . 21 (2024) . |
APA | Zhang, Wei , Wang, En-Ting , Li, Xinhao , Huang, Weixin , Sun, Yakun , Liu, Zheyuan et al. Lithium-Lanthanide Heterometallic Organic Frameworks with Near-Unity Photoluminescence Quantum Yields for Single-Composition White-Light Emission and Fluorescent Sensing on Nitrobenzene . | ADVANCED OPTICAL MATERIALS , 2024 , 12 (21) . |
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Side reactions and dendrite growth triggered by the unstable interface and inhomogeneous deposition have become the biggest obstacle to the commercialization for lithium metal batteries. In this study, a highly-chlorinated organic-inorganic hybrid interfacial protective layer is developed by rationally tuning the interfacial passivation and robustness to achieve the convenient and efficient Li metal anode. The polyvinyl chloride (PVC) can effectively resist water and oxygen, which is confirmed by density functional theory. The organic-dominant solid electrolyte interphases (SEI) with lithium chloride are investigated by the X-ray photoelectron spectroscopy (XPS) with little mineralization of oxide, such as Li2 O and Li2 CO3 . With such artificial SEI, a uniform and dense lithium deposition morphology are formed and an ultra-long stable cycle of over 500 h are achieved even at an ultra-high current density of 10 mA/cm2 . Moreover, the simple and convenient protected anode also exhibits excellent battery stability when paired with the LiNi0.8 Co0.1 Mn0.1 O2 (NCM811) and LiFePO4 (LFP) cathode, showing great potential for the commercial application of lithium metal batteries. (c) 2024 Published by Elsevier B.V. on behalf of Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences.
Keyword :
Dendrite -free lithium metal batteries Dendrite -free lithium metal batteries Highly -chlorinated Highly -chlorinated High -rate High -rate Stable interphase Stable interphase Water/oxygen resistance Water/oxygen resistance
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GB/T 7714 | Li, Long , Yang, Kang , Xi, Chenpeng et al. Highly-chlorinated inert and robust interphase without mineralization of oxide enhancing high-rate Li metal batteries [J]. | CHINESE CHEMICAL LETTERS , 2024 , 35 (6) . |
MLA | Li, Long et al. "Highly-chlorinated inert and robust interphase without mineralization of oxide enhancing high-rate Li metal batteries" . | CHINESE CHEMICAL LETTERS 35 . 6 (2024) . |
APA | Li, Long , Yang, Kang , Xi, Chenpeng , Li, Mengchao , Li, Borong , Xu, Gui et al. Highly-chlorinated inert and robust interphase without mineralization of oxide enhancing high-rate Li metal batteries . | CHINESE CHEMICAL LETTERS , 2024 , 35 (6) . |
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All-inorganic lead-free luminescent metal halides doped with main-group ns(2)-electron ions have attracted considerable interest in a variety of optoelectronic applications. However, they normally suffer from severe thermal quenching of photoluminescence (PL) due to aggravated nonradiative relaxation at high temperatures. Herein, we report a new class of luminescent materials based on 5s(2)-electron Sb3+-doped 0D Cs3GdCl6 microcrystals (MCs), which exhibit intense yellowish PL at 540 nm under ultraviolet (UV) excitation, in parallel with a broad bandwidth of 510 meV, a large Stokes shift of 190 nm, a near-unity PL quantum yield, and remarkable resistance against thermal quenching (I-150 degrees C = 82.4%). Mechanistic investigation unravels that the broadband emission originates from the spin-orbital allowed P-3(1) -> S-1(0) transition of Sb3+ which experiences a dynamic Jahn-Teller distortion in the excited state. These properties facilitate Cs3GdCl6:Sb3+ MCs as an efficient yellowish phosphor for near-UV-converted white light-emitting diodes, demonstrating a high color-rendering index of 96.4 and excellent operational stability. This work provides not only fundamental insights into the excited-state dynamics of Sb3+ in Cs3GdCl6 MCs, but also a new way for the exploration of novel and highly emissive rare-earth halides through ns(2)-electron ion doping towards various light-emitting applications.
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GB/T 7714 | Liang, Xiantian , Zhang, Wei , Shi, Yitong et al. Sb3+-doped 0D Cs3GdCl6 microcrystals with a near-unity photoluminescence quantum yield and high thermal quenching resistance for light-emitting application [J]. | JOURNAL OF MATERIALS CHEMISTRY C , 2024 , 12 (15) : 5538-5548 . |
MLA | Liang, Xiantian et al. "Sb3+-doped 0D Cs3GdCl6 microcrystals with a near-unity photoluminescence quantum yield and high thermal quenching resistance for light-emitting application" . | JOURNAL OF MATERIALS CHEMISTRY C 12 . 15 (2024) : 5538-5548 . |
APA | Liang, Xiantian , Zhang, Wei , Shi, Yitong , Zhang, Wen , Yang, Hongyi , Huang, Ping et al. Sb3+-doped 0D Cs3GdCl6 microcrystals with a near-unity photoluminescence quantum yield and high thermal quenching resistance for light-emitting application . | JOURNAL OF MATERIALS CHEMISTRY C , 2024 , 12 (15) , 5538-5548 . |
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Improving polarizability is an important strategy for designing high-performance mid-infrared (mid-IR) nonlinear optical (NLO) materials. The substitution of equivalent or aliovalent atoms can manipulate the polarizability by adjusting the symmetry of the polyhedron. Herein, the Li+ and Cd2+ are introduced into the Cu3PS4 as the equivalent and aliovalent dopants for the Cu site. As a result, Li+ can significantly improve the bandgap (E-g) of LixCu3-xPS4 from 2.38 to 2.88 eV, leading to a higher laser-induced damage threshold (LIDT) of 4.9 times than AgGaS2 (AGS) with a comparable second harmonic generation (SHG) response of AGS (26-45 mu m). Interestingly, Cd2+ can improve the SHG response and enlarge the E-g simultaneously. As a result, Cd0.4Cu2.2PS4 has a large SHG response of 10 x AGS at 2050 nm (26-45 mu m) and a LIDT of 2.6 x AGS. Theoretical calculations reveal that lattice vacancies induced by Cd2+ significantly boost polarizability compared to LixCu3-xPS4 with no vacancy, leading to a strong NLO response.
Keyword :
aliovalent substitution aliovalent substitution lattice vacancies lattice vacancies Mid-IR NLO Mid-IR NLO polarizability polarizability SHG response SHG response
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GB/T 7714 | Guo, Weiping , Fu, Yudi , Cui, Hong-Hua et al. Vacancy-Induced Extraordinary Second Harmonic Generation Response for Diamond-Like Cu3PS4 [J]. | ADVANCED OPTICAL MATERIALS , 2024 , 12 (18) . |
MLA | Guo, Weiping et al. "Vacancy-Induced Extraordinary Second Harmonic Generation Response for Diamond-Like Cu3PS4" . | ADVANCED OPTICAL MATERIALS 12 . 18 (2024) . |
APA | Guo, Weiping , Fu, Yudi , Cui, Hong-Hua , Li, Lingyun , Yu, Yan , Luo, Zhong-Zhen et al. Vacancy-Induced Extraordinary Second Harmonic Generation Response for Diamond-Like Cu3PS4 . | ADVANCED OPTICAL MATERIALS , 2024 , 12 (18) . |
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Organic-inorganic hybrid manganese(II) halides (OIMnHs) have garnered tremendous interest across a wide array of research fields owing to their outstanding optical properties, abundant structural diversity, low-cost solution processibility, and low toxicity, which make them extremely suitable for use as a new class of luminescent materials for various optoelectronic applications. Over the past years, a plethora of OIMnHs with different structural dimensionalities and multifunctionalities such as efficient photoluminescence (PL), radioluminescence, circularly polarized luminescence, and mechanoluminescence have been newly created by judicious screening of the organic cations and inorganic Mn(II) polyhedra. Specifically, through precise molecular and structural engineering, a series of OIMnHs with near-unity PL quantum yields, high anti-thermal quenching properties, and excellent stability in harsh conditions have been devised and explored for applications in light-emitting diodes (LEDs), X-ray scintillators, multimodal anti-counterfeiting, and fluorescent sensing. In this review, the latest advancements in the development of OIMnHs as efficient light-emitting materials are summarized, which covers from their fundamental physicochemical properties to advanced optoelectronic applications, with an emphasis on the structural and functionality design especially for LEDs and X-ray detection and imaging. Current challenges and future efforts to unlock the potentials of these promising materials are also envisioned. © 2024 Wiley-VCH GmbH.
Keyword :
anti-counterfeiting anti-counterfeiting circularly polarized luminescence circularly polarized luminescence hybrid manganese halide hybrid manganese halide light-emitting diode light-emitting diode mechanoluminescence mechanoluminescence photoluminescence photoluminescence X-ray scintillator X-ray scintillator
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GB/T 7714 | Zhang, W. , Zheng, W. , Li, L. et al. Unlocking the Potential of Organic-Inorganic Hybrid Manganese Halides for Advanced Optoelectronic Applications [J]. | Advanced Materials , 2024 , 36 (39) . |
MLA | Zhang, W. et al. "Unlocking the Potential of Organic-Inorganic Hybrid Manganese Halides for Advanced Optoelectronic Applications" . | Advanced Materials 36 . 39 (2024) . |
APA | Zhang, W. , Zheng, W. , Li, L. , Huang, P. , Xu, J. , Shao, Z. et al. Unlocking the Potential of Organic-Inorganic Hybrid Manganese Halides for Advanced Optoelectronic Applications . | Advanced Materials , 2024 , 36 (39) . |
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As an important interaction among organic cations containing aromatic rings, the pi-pi stacking interaction is a crucial factor determining the crystal structure of organic-inorganic hybrid metal halides (OIMHs). However, the relationship between pi-pi interaction and optical properties of luminescent OIMHs is yet to be studied. (C10H10N2)Cd1-xZnxCl4 (23-Cd1-xZnxCl4) crystals with 0D structures are synthesized by using optically active 2,3 '-bipyridine as the organic ligand. When x <= 0.2, there is no pi-pi interaction among 2,3 '-bipyridinium cations in 23-Cd1-xZnxCl4 crystals. When x > 0.2, pi-pi interaction among organic cations occurs and enhances as the Zn2+ content increases. The tailoring of the pi-pi interaction endows 23-Cd1-xZnxCl4 with tunable light emitting properties, resulting in a broad band emission involving blue and orange species. The blue emission dominates when there is no pi-pi interaction, while the orange emission enhances and finally becomes dominant as the strength of pi-pi interaction increases. The pi-pi interaction promotes the energy transfer from the higher energy valley to the lower one of the S-1 state of the organic cation, resulting in the enhancement of orange emission. Notably, the 23-ZnCl crystal exhibits a photo-luminescence quantum yield (PLQY) of 32%. This is the highest reported value to date among the Zn-based OIMHs, which have optical emission originating from the organic component. The mechanism of pi-pi stacking induced tunable light emission revealed in our work provides new guidance for the design of luminescent OIMHs.
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GB/T 7714 | Zhang, Qi , Lin, Xinyi , Guo, Shanji et al. Tailoring the π-π stacking interaction among organic cations in hybrid metal halide crystals towards tunable light emission [J]. | JOURNAL OF MATERIALS CHEMISTRY C , 2024 , 12 (19) : 7053-7061 . |
MLA | Zhang, Qi et al. "Tailoring the π-π stacking interaction among organic cations in hybrid metal halide crystals towards tunable light emission" . | JOURNAL OF MATERIALS CHEMISTRY C 12 . 19 (2024) : 7053-7061 . |
APA | Zhang, Qi , Lin, Xinyi , Guo, Shanji , Zhang, Yaqing , Jiang, Yan , Zhang, Wei et al. Tailoring the π-π stacking interaction among organic cations in hybrid metal halide crystals towards tunable light emission . | JOURNAL OF MATERIALS CHEMISTRY C , 2024 , 12 (19) , 7053-7061 . |
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As a class of emerging photoluminescent materials, hybrid halide crystals have drawn research attention for their potential application in the fields of light-emitting, security, and waveguide. Nevertheless, hybrid halide crystals containing antimony with long-term stability and tunable light emission are still increasingly in demand. In this work, serial new hybrid halide crystals (BZA)(2)ZnCl42H(2)O:xSb(3+) (x = 0-0.2, x represents the reaction ratio) and (BZA)(2)SbCl5 are synthesized (BZA = 2,4-diamino-6-phenyl-1,3,5-triazine). In (BZA)(2)ZnCl42H(2)O:xSb(3+) crystals, Sb3+ cations replace partial Zn2+ cations to form [SbCl4](-) tetrahedron. Red light emission caused by the substitution of Sb3+ for Zn2+ enhances as the doping rate increases, resulting in the tunable emission from light blue to pink and finally to dark red. There are two kinds of Sb3+ in (BZA)(2)SbCl5 crystal. Sb(1) has a sixfold coordination with Cl to form a [Sb(1)Cl-5]infinity 1D zigzag chain. Sb(2) atom adopts a fivefold coordination with Cl and is separated from each other by BZA(+) cations. (BZA)(2)SbCl5 crystal shows bright orange-yellow light emission with a photoluminescence quantum yield of 45%. Moreover, the organic-inorganic hybrid metal halide crystals containing antimony have excellent long-term stability, with phase and luminescence keeping nearly unchanged after more than six months in ambient air.
Keyword :
hybrid halide crystals hybrid halide crystals Sb3+ Sb3+ stability stability tunable light emission tunable light emission
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GB/T 7714 | Zhang, Yaqing , Jiang, Yan , Zhang, Qi et al. Antimony Doped Hybrid Zinc Halide Crystals with Tunable Light Emission and Long-Term Stability [J]. | ADVANCED OPTICAL MATERIALS , 2024 , 12 (12) . |
MLA | Zhang, Yaqing et al. "Antimony Doped Hybrid Zinc Halide Crystals with Tunable Light Emission and Long-Term Stability" . | ADVANCED OPTICAL MATERIALS 12 . 12 (2024) . |
APA | Zhang, Yaqing , Jiang, Yan , Zhang, Qi , Liu, Qingyi , Guo, Weiping , Zhang, Wei et al. Antimony Doped Hybrid Zinc Halide Crystals with Tunable Light Emission and Long-Term Stability . | ADVANCED OPTICAL MATERIALS , 2024 , 12 (12) . |
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Oxychloride phosphors that contain active ions coordinated with both oxygen and chloride ions have garnered significant attention, but the application of oxychloride phosphors is yet limited because of their demanding synthesis condition of vacuum or reducing atmosphere. Herein, we synthesize a new serial oxychlorides of La 9 W 6 O 30 Cl (LWOC) and Er 3+ /Yb 3+ , Ho 3+ /Yb 3+ , Tm 3+ /Yb 3+ doped LWOC through molten salt shielding method (MSS) in air, which is more efficient compared to the traditional method in vacuum. The compound of LWOC crystallizes in the tetragonal system space group P 4 2 / nmc (No. 137) with cell parameters a = b = 10.0445 (1) & Aring;, c = 12.6826(4) & Aring;, V = 1279.57(5) & Aring; 3 and Z = 11. The asymmetric unit of LWOC includes three La atoms, one unique W atom, two disordered W atoms with occupancy factors of 0.16(5) and 0.84(5), respectively, one Cl atom and six O atoms. Under the excitation of 980 nm laser, all the Er 3+ /Yb 3+ , Ho 3+ /Yb 3+ and Tm 3+ /Yb 3+ codoped LWOC phosphors have excellent upconversion (UC) luminescence with bright visible light emission. A fluorescence intensity ratio (FIR) type temperature sensor is developed by using LWOC: Er 3+ , Yb 3+ phosphor as sensing media, which has a maximum relative temperature sensitivity ( S r ) of 0.90 % K -1 at 300 K.
Keyword :
Molten salt shielding method Molten salt shielding method Optical temperature sensing Optical temperature sensing Oxychloride Oxychloride Upconversion luminescence Upconversion luminescence
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GB/T 7714 | Wang, En-Ting , Yang, Junhan , Guo, Weiping et al. Molten salt shielding synthesis of Er 3+/Yb 3+co-doped La 9 W 6 O 30 Cl phosphors for optical temperature s ensing [J]. | JOURNAL OF LUMINESCENCE , 2024 , 271 . |
MLA | Wang, En-Ting et al. "Molten salt shielding synthesis of Er 3+/Yb 3+co-doped La 9 W 6 O 30 Cl phosphors for optical temperature s ensing" . | JOURNAL OF LUMINESCENCE 271 (2024) . |
APA | Wang, En-Ting , Yang, Junhan , Guo, Weiping , Liu, Qingyi , Zhang, Qi , Zhang, Wei et al. Molten salt shielding synthesis of Er 3+/Yb 3+co-doped La 9 W 6 O 30 Cl phosphors for optical temperature s ensing . | JOURNAL OF LUMINESCENCE , 2024 , 271 . |
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Studying lithium growth on diverse substrates with unique crystal structures is crucial for linking atomic and macroscopic views, which ensures a long cycle life and safety in lithium metal batteries. This work provides explanations on (1) the stages of nucleation, which are influenced by the adsorption-relaxation mechanism, (2) acquiring evolved traits of dendritic morphology from the embryo, and (3) the integration of the atomic and macroscopic perspectives through a variety of techniques at different scales to validate dendrite evolution. The heteroepitaxial growth process of the embryos is divided into two principal stages: nucleation and growth. The adsorption-type substrates exhibit characteristics of relatively lower average interaction energy and specific stress energy during the nucleation stage. At the growth stage, the adsorption-type substrate tends to facilitate multilayer growth. This work provides potential to design and material selection for lithium metal batteries, contributing to the development of safer, more efficient, and longer-lasting energy storage systems. © 2024 American Chemical Society.
Keyword :
Crystal atomic structure Crystal atomic structure Epitaxial growth Epitaxial growth Indium phosphide Indium phosphide Lithium batteries Lithium batteries
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GB/T 7714 | Li, Borong , Zhang, Weicheng , Yang, Kang et al. Bridging Atomic and Macroscopic Perspectives on Heteroepitaxial Growth in Lithium Metal Anodes [J]. | ACS Energy Letters , 2024 , 9 (10) : 5215-5224 . |
MLA | Li, Borong et al. "Bridging Atomic and Macroscopic Perspectives on Heteroepitaxial Growth in Lithium Metal Anodes" . | ACS Energy Letters 9 . 10 (2024) : 5215-5224 . |
APA | Li, Borong , Zhang, Weicheng , Yang, Kang , Li, Long , Luo, Jing , Lin, Qingqing et al. Bridging Atomic and Macroscopic Perspectives on Heteroepitaxial Growth in Lithium Metal Anodes . | ACS Energy Letters , 2024 , 9 (10) , 5215-5224 . |
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The safety, adaptability, and eco-friendliness of zinc-ion batteries have recently been drawing increased attention. However, zinc-ion batteries suffer from irregular interfacial kinetics and uncontrolled Zn2+ deposition. Herein, a novel localized gelation separator (LGS) with low-cost natural cellulose separators has been developed, prepared via a green chemistry process. The LGS can "intelligently" select the deposition site through the updated separator/anode interface due to the repulsion between non-gelation regions and anodes. The solvation shell of ZnSO4 is altered due to the involvement of cellulose, as confirmed by X-ray diffraction patterns, Raman spectra and ab initio molecular dynamics calculations, where the interfacial transfer of Zn2+ is regulated and the activity of water is reduced. A novel linearly increasing polarization was observed using electrochemical impedance spectroscopy, revealing smooth interface kinetics and charge-transfer impedance. With those benefits, the zinc symmetric cell shows stable cyclability for more than 1200 h even at 20 mA cm(-2). Superior dendrite suppression was observed using in situ optical microscopy at 20 mA h cm(-2). After 300 cycles, the discharge-specific capacity of the MnO2 cell with the LGS was 80 mA h g(-1). The LGS also showed excellent performance at -20 degrees C. This LG strategy has broad prospects and provides new ideas for dendrite-free zinc-ion batteries.
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GB/T 7714 | Xi, Chenpeng , Xiao, Yuanbin , Yang, Chengkai et al. Localized gelation cellulose separators enable dendrite-free anodes for future zinc-ion batteries [J]. | JOURNAL OF MATERIALS CHEMISTRY A , 2023 , 11 (12) : 6522-6529 . |
MLA | Xi, Chenpeng et al. "Localized gelation cellulose separators enable dendrite-free anodes for future zinc-ion batteries" . | JOURNAL OF MATERIALS CHEMISTRY A 11 . 12 (2023) : 6522-6529 . |
APA | Xi, Chenpeng , Xiao, Yuanbin , Yang, Chengkai , Li, Mengchao , Li, Long , Chao, Yu et al. Localized gelation cellulose separators enable dendrite-free anodes for future zinc-ion batteries . | JOURNAL OF MATERIALS CHEMISTRY A , 2023 , 11 (12) , 6522-6529 . |
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