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学者姓名：李凌云
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Abstract ：
In this work, cation vacancies induced the tetrahedral distortion, enhancing the second harmonic generation (SHG) response in the diamond-like (DL) structure compounds. Concretely, the high valence and electronegativity of P5+ were introduced to substitute the Ge4+ in Cd4GeS6, which shows a general SHG response of 1.1 x AgGaS2 (AGS) at 2050 nm. Thus, the isomorphic defective DL Cd3.5PS6 was obtained with inherent Cd2+ vacancies, leading to an 8.5-fold increase in [CdS4] tetrahedral distortion degree than Cd4GeS6. As a result, Cd3.5PS6 has a high SHG response of 2 x AGS at 2050 nm and a laser-induced damage threshold (LIDT) of 9.4 x AGS. Furthermore, equivalent Hg2+ substitution concentrates Cd2+ vacancies at the Cd(2) site, leading to a 2.66-fold [CdS4] tetrahedral distortion degree than Cd3.5PS6. Consequently, Hg0.5Cd3PS6 possesses a high SHG response of 2.73 x AGS at 2050 nm and LIDT of 5 x AGS with a birefringence of 0.076@2050 nm. The results indicate that the cation vacancies and radius scale of mixed atoms provide effective ways to design high-performance nonlinear optical crystals.
Keyword ：
cation vacancies cation vacancies diamond-like structure diamond-like structure distortion degree distortion degree mid-infrared nonlinear optical mid-infrared nonlinear optical polarizability polarizability
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| GB/T 7714 | Guo, Weiping , Zhang, Yongjia , Cui, Hong-Hua et al. Vacancy-driven tetrahedral distortion leading to exceptional second harmonic generation [J]. | SCIENCE CHINA-MATERIALS , 2025 . |
| MLA | Guo, Weiping et al. "Vacancy-driven tetrahedral distortion leading to exceptional second harmonic generation" . | SCIENCE CHINA-MATERIALS (2025) . |
| APA | Guo, Weiping , Zhang, Yongjia , Cui, Hong-Hua , Li, Xin-Xiong , Li, Lingyun , Yu, Yan et al. Vacancy-driven tetrahedral distortion leading to exceptional second harmonic generation . | SCIENCE CHINA-MATERIALS , 2025 . |
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The influence of hydrogen bonding on spectroscopic properties is one of the fundamental issues in the field of luminescent organic-inorganic hybrid metal halides (OIMHs). We design and prepare three OIMHs, namely, crystals 1, 2 and 3, using 2,2 '-bipyridine and ZnCl2 as starting materials. From crystals 1 to 3, the hydrogen bonding environment surrounding the 2,2 '-bipyridinium cations gradually weakens, with both the dihedral angle and the number of hydrogen bonds around them decreasing progressively. Correspondingly, the blue emission belonging to the S1 -> S0 transition of the three crystals gradually increases, with crystal 3 exhibiting the strongest blue light emission and a photo-luminescence quantum yield reaching 34.10%. In crystal 1, the dense hydrogen bonding environment of the 2,2 '-bipyridinium cation results in an obvious energy transfer from S1 to T1. This reduces the population of the S1 state, thereby leading to weaker blue light emission. In crystals 2 and 3, the weaker hydrogen bonding environment and smaller spatial distortion of organic cations weaken or even prevent energy transfer between S1 and T1, thereby enhancing blue light emission. These findings provide new insights for exploring novel luminescent OIMHs and developing more effective means of regulating their luminescence performance. (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)-(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic) (sic)(OIMHs)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic). (sic)(sic)(sic)2,2 '-(sic)(sic)(sic)(sic)ZnCl2(sic)(sic)(sic), (sic) (sic)(sic)(sic)(sic)(sic)(sic)(sic)OIMH, (sic)(sic)(sic)1,2(sic)3. (sic)(sic)(sic)1(sic)(sic)(sic)3, 2,2 '-(sic)(sic)(sic) (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic) (sic). (sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)S1 -> S0(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)3 (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)34.10%. (sic)(sic)(sic)1(sic), 2,2 '-(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)S1(sic)T1(sic)(sic)(sic)(sic)(sic)(sic)(sic). (sic)(sic) (sic)(sic)S1(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic). (sic)(sic)(sic)(sic)2(sic)3(sic), (sic)(sic)(sic) (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)S1(sic)T1(sic)(sic)(sic) (sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic). (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)OIMHs(sic) (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic).
Keyword ：
blue emission blue emission hydrogen bonding hydrogen bonding optical materials optical materials organic-inorganic hybrid metal halides organic-inorganic hybrid metal halides photoluminescence photoluminescence
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| GB/T 7714 | Zhang, Qi , Huang, Tianwen , Liu, Zheyuan et al. Hydrogen bonding evolution and efficient blue light emission in a series of Zn-based organic-inorganic hybrid metal halide crystals [J]. | SCIENCE CHINA-MATERIALS , 2025 , 68 (4) : 1004-1011 . |
| MLA | Zhang, Qi et al. "Hydrogen bonding evolution and efficient blue light emission in a series of Zn-based organic-inorganic hybrid metal halide crystals" . | SCIENCE CHINA-MATERIALS 68 . 4 (2025) : 1004-1011 . |
| APA | Zhang, Qi , Huang, Tianwen , Liu, Zheyuan , Feng, Ya-Nan , Yu, Yan , Li, Lingyun . Hydrogen bonding evolution and efficient blue light emission in a series of Zn-based organic-inorganic hybrid metal halide crystals . | SCIENCE CHINA-MATERIALS , 2025 , 68 (4) , 1004-1011 . |
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High-order nonlinear multiphoton absorption (MPA) is technologically important for a variety of photonic and biological applications owing to its superior advantages over linear absorption and low-order MPA such as greater spatial confinement, larger penetration depth, reduced autofluorescence, and enhanced imaging resolution. However, practical implementation beyond three-photon processes remains notoriously difficult due to the sharp reduction of absorption cross sections with increasing nonlinearity and inherent material instability under high-density irradiation. Herein, we address these challenges through rationally designed Te4+-doped Cs2SnCl6 nanocrystals (NCs), which demonstrate wideband nonlinear responsiveness across 800-2600 nm, allowing achievement of two- to seven-photon absorption (PA) with cross sections outperforming conventional nonlinear optical materials. Particularly, the engineered NCs enable 3PA-excited amplified spontaneous emission (ASE) with an ultralow excitation threshold of 0.22 mu J cm-2 under a 1300 nm femtosecond-pulsed laser excitation, representing 1-4 orders of magnitude improvement compared to existing nonlinear ASE systems. This work presents the excellent 7PA properties in metal halide NCs, positioning lead-free metal halide NCs promising as efficient light-emitting materials for extreme nonlinear nanophotonics.
Keyword ：
amplified spontaneousemission amplified spontaneousemission metal halides metal halides multiphotonabsorption multiphotonabsorption Te4+ doping Te4+ doping upconversion upconversion
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| GB/T 7714 | Zhang, Wei , Zheng, Wei , Li, Lingyun et al. Multiphoton-Excited Upconversion Luminescence and Amplified Spontaneous Emission from Te4+-Doped Cs2SnCl6 Nanocrystals [J]. | ACS NANO , 2025 , 19 (19) : 18866-18873 . |
| MLA | Zhang, Wei et al. "Multiphoton-Excited Upconversion Luminescence and Amplified Spontaneous Emission from Te4+-Doped Cs2SnCl6 Nanocrystals" . | ACS NANO 19 . 19 (2025) : 18866-18873 . |
| APA | Zhang, Wei , Zheng, Wei , Li, Lingyun , Shang, Xiaoying , Huang, Ping , Yi, Xiaodong et al. Multiphoton-Excited Upconversion Luminescence and Amplified Spontaneous Emission from Te4+-Doped Cs2SnCl6 Nanocrystals . | ACS NANO , 2025 , 19 (19) , 18866-18873 . |
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In this study, divalent calcium cation with large radius and trivalent yttrium cation with small radius were introduced to develop co-stabilized zirconia ceramics with both superior mechanical properties and aging resistance. Through a reverse coprecipitation-hydrothermal method, a series of ultrafine xCaO-yY2O3-ZrO2 (x = 2.0, 3.0, y = 0.5, 1.0, 1.5, 2.0) raw powders with high quality were fabricated for the production of nanostructured ceramics via low-temperature pressurelessly sintering. The sintering process was optimized by investigating the effects of sintering temperature on densification, grain growth and phase evolution. The minimally doped 2.0CaO-0.5Y2O3-ZrO2 ceramic retained pure tetragonal phase at room temperature, achieving a balance of excellent toughness and high aging resistance. The impacts of chemical composition on microstructure, hardness, toughness and aging resistance were examined for these xCaO-yY2O3-ZrO2 (x = 2.0, 3.0, y = 0.5, 1.0, 1.5, 2.0) ceramics. The segregation of calcium and yttrium cations at grain boundaries effectively tailored the microstructure. It was observed that substituting small trivalent yttrium cations for large divalent calcium cations effectively enhanced the aging resistance without sacrificing mechanical properties, due to the strengthened grain boundaries and asymmetrical distribution of cations among grains. This work not only produces low-doped zirconia ceramics with both excellent mechanical properties and aging resistance, but also presents straightforward method for preparation of high-quality raw powders and delicate microstructural engineering during sintering for developing advanced structural ceramics. © 2025 Elsevier Ltd and Techna Group S.r.l.
Keyword ：
Ceramic materials Ceramic materials Grain growth Grain growth High temperature engineering High temperature engineering Low temperature production Low temperature production Microstructural evolution Microstructural evolution Powders Powders Rockwell hardness Rockwell hardness Sintering Sintering Yttria stabilized zirconia Yttria stabilized zirconia Yttrium Yttrium Yttrium metallography Yttrium metallography
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| GB/T 7714 | Feng, Ya-Nan , Wang, Fei-Fan , Xiao, Weiwei et al. Mechanical properties and aging resistance of calcia-yttria co-stabilized zirconia: from powder to ceramic [J]. | Ceramics International , 2025 , 51 (13) : 17368-17378 . |
| MLA | Feng, Ya-Nan et al. "Mechanical properties and aging resistance of calcia-yttria co-stabilized zirconia: from powder to ceramic" . | Ceramics International 51 . 13 (2025) : 17368-17378 . |
| APA | Feng, Ya-Nan , Wang, Fei-Fan , Xiao, Weiwei , Xia, Yan , Wei, Bin , Wang, Shuaihua et al. Mechanical properties and aging resistance of calcia-yttria co-stabilized zirconia: from powder to ceramic . | Ceramics International , 2025 , 51 (13) , 17368-17378 . |
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Heterojunction photocatalysts, which consist of two or more semiconductors, have garnered significant attention owing to their extensive benefits, including a broad-spectrum response, efficient carrier separation and migration, as well as robust redox capabilities. Among the myriad of semiconductors, graphitic carbon nitride (g-C3N4) and zinc indium sulfide (ZnIn2S4) have been extensively researched due to their low toxicity, straightforward and scalable synthesis processes, controllable microstructures, and exceptional chemical stability. Recently, there has been a trend towards integrating these two semiconductors to complement each other's strengths. Consequently, a systematic summary and outlook on g-C3N4/ZnIn2S4 heterojunction photocatalysts is both urgent and valuable. This review summarizes the advancements in the g-C3N4/ZnIn2S4 heterojunctions in the last 10 years. We first analyzed the charge-transfer mechanisms in the type-I, type-II, Z-scheme and S-scheme heterojunctions. Then the typical synthesis methods employed for creating g-C3N4/ZnIn2S4 heterojunctions are introduced. Subsequently, we delve into the regulation strategies for g-C3N4/ZnIn2S4 heterojunctions, including morphology optimization, heteroatom doping, defect engineering, and the construction of multinary composites. The design concept and superiorities of these strategies are thoroughly discussed. Following this, we systematically showcase the photocatalytic applications of g-C3N4/ZnIn2S4 heterojunctions, encompassing CO2 reduction, H2 evolution, pollutant degradation, H2O2 production, biomass conversion, photoelectrochemical sensors, and so forth. Last, we propose the challenges that lie ahead in future research endeavors. This comprehensive review is expected to provide an instructive guideline for rational design and applications of g-C3N4/ZnIn2S4 heterojunctions.
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| GB/T 7714 | Lu, Yongjun , Zhuang, Zanyong , Li, Lingyun et al. Advancements and challenges in g-C3N4/ZnIn2S4 heterojunction photocatalysts [J]. | JOURNAL OF MATERIALS CHEMISTRY A , 2025 , 13 (7) : 4718-4745 . |
| MLA | Lu, Yongjun et al. "Advancements and challenges in g-C3N4/ZnIn2S4 heterojunction photocatalysts" . | JOURNAL OF MATERIALS CHEMISTRY A 13 . 7 (2025) : 4718-4745 . |
| APA | Lu, Yongjun , Zhuang, Zanyong , Li, Lingyun , Chen, Fei-Fei , Wei, Peishu , Yu, Yan . Advancements and challenges in g-C3N4/ZnIn2S4 heterojunction photocatalysts . | JOURNAL OF MATERIALS CHEMISTRY A , 2025 , 13 (7) , 4718-4745 . |
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Developing single-component white-light phosphors remains challenging due to the difficulty in achieving dual emission from mixed-valent activators. Herein, we present a carbon-modulated reduction synthesis (CARS) method to fabricate Eu2+/Eu3+ co-doped La3Si2O8Cl (LSOCl) phosphors without requiring hazardous reducing atmospheres. By modulating carbon content (Eu : C = 1 : 0-2.4), the Eu2+/Eu3+ ratio is effectively controlled, enabling tunable emission from pink to white and yellow under 365 nm UV excitation. The optimized LSOCl:7%Eu (Eu : C = 1 : 1.9) exhibits broadband emission (390-720 nm) with a high color rendering index (Ra = 85.05), cool white light (5489 K, CIE: 0.33, 0.38), and stable performance under varying currents. Additionally, LSOCl:7%Eu (Eu : C = 1 : 1.4) shows excitation-dependent chromaticity shifts: minimal changes under solar-blind UV (250-280 nm) but dramatic variations at 280-350 nm, facilitating rapid detection. A solar-blind UV detector was designed, demonstrating fast response, high resolution (50% CIE shift at 330 nm), and anti-interference capability. The CARS method offers an eco-friendly, scalable route for dual-emission phosphors, showcasing their dual utility in high-quality white LEDs and sensitive UV detection technologies.
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| GB/T 7714 | Chen, Xinhan , Chen, Gaofan , Feng, Ya-Nan et al. Carbon-modulated reduction synthesis of dual-valent Eu-doped La3Si2O8Cl phosphors: single-matrix white LEDs and high-resolution solar-blind UV detection [J]. | JOURNAL OF MATERIALS CHEMISTRY C , 2025 , 13 (21) : 10899-10905 . |
| MLA | Chen, Xinhan et al. "Carbon-modulated reduction synthesis of dual-valent Eu-doped La3Si2O8Cl phosphors: single-matrix white LEDs and high-resolution solar-blind UV detection" . | JOURNAL OF MATERIALS CHEMISTRY C 13 . 21 (2025) : 10899-10905 . |
| APA | Chen, Xinhan , Chen, Gaofan , Feng, Ya-Nan , Zhang, Lizhen , Yu, Yan , Li, Lingyun . Carbon-modulated reduction synthesis of dual-valent Eu-doped La3Si2O8Cl phosphors: single-matrix white LEDs and high-resolution solar-blind UV detection . | JOURNAL OF MATERIALS CHEMISTRY C , 2025 , 13 (21) , 10899-10905 . |
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Birefringent crystals play an irreplaceable role in optical systems by adjusting the polarization state of light in optical devices. This work successfully synthesized a new thiophosphate phase of B-Pb3 P2 S8 through the high-temperature solid-state spontaneous crystallization method. Different from the cubic a-Pb3 P2 S8 , the B-Pb3 P2 S8 crystallizes in the orthorhombic Pbcn space group. Notably, B-Pb3 P2 S8 shows a large band gap of 2.37 eV in lead-based chalcogenides, wide infrared transparent window (2.5-15 mu m), and excellent thermal stability. Importantly, the experimental birefringence shows the largest value of 0.26@550 nm in chalcogenides, even larger than the commercialized oxide materials. The Barder charge analysis result indicates that the exceptional birefringence effect is mainly from the Pb2 + and S2- in the [PbSn ] polyhedrons. Meanwhile, the parallelly arranged polyhedral layers could improve the structural anisotropic. Therefore, this work supports a new method for designing chalcogenides with exceptional birefringence effect in the infrared region. (c) 2024 Published by Elsevier B.V. on behalf of Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences.
Keyword ：
Birefringent crystals Birefringent crystals Chalcogenides Chalcogenides Optical properties Optical properties Structural ansotropic Structural ansotropic
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| GB/T 7714 | Guo, Weiping , Zhu, Ying , Cui, Hong-Hua et al. B-Pb 3 P 2 S 8: A new optical crystal with exceptional birefringence effect [J]. | CHINESE CHEMICAL LETTERS , 2025 , 36 (2) . |
| MLA | Guo, Weiping et al. "B-Pb 3 P 2 S 8: A new optical crystal with exceptional birefringence effect" . | CHINESE CHEMICAL LETTERS 36 . 2 (2025) . |
| APA | Guo, Weiping , Zhu, Ying , Cui, Hong-Hua , Li, Lingyun , Yu, Yan , Luo, Zhong-Zhen et al. B-Pb 3 P 2 S 8: A new optical crystal with exceptional birefringence effect . | CHINESE CHEMICAL LETTERS , 2025 , 36 (2) . |
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Fluorescence intensity ratio (FIR)-based optical thermometry, recognized for high reliability and rapid response, has emerged as a promising non-contact temperature sensing technology. This study focuses on enhancing the performance of Er3+/Yb3+ co-doped scheelite-type single crystals (NaY(WO4)2 and NaGd(WO4)2) for wide-range optical temperature sensing. By employing a spontaneous nucleation method, we synthesized single crystals with optimized doping concentrations (1 % Er3+/60 % Yb3+ for NYW and 3 % Er3+/70 % Yb3+ for NGW), achieving intense green upconversion (UC) emissions at 530 nm (2H11/2 -> 4I15/2) and 552 nm (4S3/2 -> 4I15/2). The single crystals exhibited high Yb3+-> Er3+ energy transfer efficiencies of 11.02 % (NYW: 1 % Er3+, 60 % Yb3+) and 20.65 % (NGW: 3 % Er3+, 70 % Yb3+), enabling robust UC luminescence even under harsh conditions (pH = 1/ 13, 72 h) and thermal shocks (800 degrees C, 8 cycles). Temperature-dependent FIR analysis of thermally coupled energy levels (2H11/2 and 4S3/2) revealed linear ln(FIR) vs. 1/T relationships, with maximum relative sensitivities of 1.18 % K-1 (NYW) and 1.12 % K-1 (NGW) in 298-578 K. A prototype sensor utilizing NGW: 3 %Er3+, 70 % Yb3+ single crystal demonstrated practical feasibility across 80-780 K, eliminating fiber-optic requirements due to high UC efficiency. These results highlight scheelite-type single crystals as superior candidates for precision optical thermometry in extreme environments.
Keyword ：
Fluorescence intensity ratio Fluorescence intensity ratio Optical thermometry Optical thermometry Scheelite-type single crystals Scheelite-type single crystals Temperature sensors Temperature sensors Upconversion emission Upconversion emission
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| GB/T 7714 | Wu, Weiqing , Xu, Yurong , Lin, Xinyi et al. Ultra-stable Er3+/Yb3+Co-doped scheelite single crystals for wide-range fiber-free optical thermometry [J]. | JOURNAL OF LUMINESCENCE , 2025 , 283 . |
| MLA | Wu, Weiqing et al. "Ultra-stable Er3+/Yb3+Co-doped scheelite single crystals for wide-range fiber-free optical thermometry" . | JOURNAL OF LUMINESCENCE 283 (2025) . |
| APA | Wu, Weiqing , Xu, Yurong , Lin, Xinyi , Huang, Fazheng , Feng, Ya-Nan , Zhang, Lizhen et al. Ultra-stable Er3+/Yb3+Co-doped scheelite single crystals for wide-range fiber-free optical thermometry . | JOURNAL OF LUMINESCENCE , 2025 , 283 . |
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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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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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