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学者姓名：李凌云
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Abstract ：
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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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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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 . |
| MLA | Guo, Weiping et al. "Vacancy-Induced Extraordinary Second Harmonic Generation Response for Diamond-Like Cu3PS4" . | ADVANCED OPTICAL MATERIALS (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 . |
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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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本发明公开了一种中远红外非线性光学晶体硫磷镉，其结构式为Cd3.5PS6，相对分子量616.78，属于单斜非中心对称晶系Cc，晶胞参数为：α＝γ＝90°，β＝108.74°，Z＝4。本发明制备过程是通过密封的真空石英管在高温下反应制备。本发明制得的Cd3.5PS6晶体因属硫属化合物在红外波段的透过率高，并且M‑S/Se键极化程度比氧化物的M‑O键更高，可以作为优异的中远红外非线性材料。本发明制得的Cd3.5PS6晶体具备优异的红外倍频性能，同时具备高损伤阈值，利于提高器件的使用寿命。
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| GB/T 7714 | 罗中箴 , 郭卫平 , 李凌云 et al. 一种中远红外非线性光学晶体硫磷镉的制备及应用 : CN202210442332.X[P]. | 2022-04-25 00:00:00 . |
| MLA | 罗中箴 et al. "一种中远红外非线性光学晶体硫磷镉的制备及应用" : CN202210442332.X. | 2022-04-25 00:00:00 . |
| APA | 罗中箴 , 郭卫平 , 李凌云 , 邹志刚 . 一种中远红外非线性光学晶体硫磷镉的制备及应用 : CN202210442332.X. | 2022-04-25 00:00:00 . |
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Ultraviolet (UV) absorbing material is the key to achieving high performance UV shielding device. Because of the large absorption ability on UV light and excellent long-term stability under UV irradiation, CeO2 nanoparticle is considered potential UV absorber for practical applications. However, the CeO2 related materials still face challenges since its UV absorbing capability is non-adjustable, which is unable to meet the changing requirement. In this work, we obtain serial CeO2 nanoparticles with tunable UV absorbing ability through F- doping. Using undoped CeO2 nanoparticles with size of about 6 nm as starting material and trifluoroacetic acid as F- source, serial F- doped CeO2 marked as CeO2:F1, CeO2:F-2, CeO2:F-3 and CeO2:F-4 are obtained through a post- fluorination strategy. The F- doping rarely changes the size of CeO2, but obviously changes the optical absorbing ability. As the F- content increases, the optical absorption band of the F- doped nanoparticles gradually shifts to short wavelength. Because of the highest F- content, CeO2:F-4 sample displays the greatest blue shift with an absorption band of 345 nm. Calculation result reveals that the introduction of F- enlarges the energy band gap of CeO2, leading to the blue shift of the UV absorption band. Finally, serial coated glasses with tunable UV shielding ability are prepared. Using CeO2 nanoparticles or F- doped CeO2 nanoparticles as UV absorber, the optical absorption band of coated glasses could be tuned between 380 nm and 345 nm.
Keyword ：
CeO2 CeO2 F- doping F- doping UV-absorption UV-absorption UV-shielding UV-shielding
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| GB/T 7714 | Bao, Bingting , Sun, Yakun , Li, Xinxu et al. Tuning the UV absorbing ability of CeO2 nanoparticles with F- doping [J]. | FLATCHEM , 2023 , 39 . |
| MLA | Bao, Bingting et al. "Tuning the UV absorbing ability of CeO2 nanoparticles with F- doping" . | FLATCHEM 39 (2023) . |
| APA | Bao, Bingting , Sun, Yakun , Li, Xinxu , Li, Lingyun , Yu, Yan . Tuning the UV absorbing ability of CeO2 nanoparticles with F- doping . | FLATCHEM , 2023 , 39 . |
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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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All-inorganic zero-dimensional(0D)metal halides, owing to their intriguing optical properties and easy solution processibility, are emerging as a new generation of luminescent materials and as an alternative to lead halide perovskites for various applications such as solid-state lighting and photodetectors. Herein, a new yellow phosphor is developed based on Cd2+-doped Cs2ZnCl4, which exhibits intense broadband and long-lived(11. 4 ms)photoluminescence(PL)at 565 nm upon 270 nm excitation, with a PL quantum yield up to 46. 0%. Temperature-dependent PL spectroscopic analyses reveal that the broadband PL originates from the forbidden 3E→1A1 transition of Cd2+. Specifically, localized exciton emission is observed at low temperatures below 170 K, in parallel with efficient energy transfer from the localized excitons to Cd2+. Besides, the phosphor displays an excellent anti-thermal quenching property, remaining 90% PL intensity at 150 ℃ in comparison with that at room temperature. These findings provide not only new insights into the excited-state dynamics of Cd2+ in metal halides, but also a new avenue for the exploration of novel and efficient luminescent materials based on 0D metal halides. © 2023 Chines Academy of Sciences. All rights reserved.
Keyword ：
cadmium doping cadmium doping Cs2ZnCl4 Cs2ZnCl4 excited-state dynamics excited-state dynamics metal halide metal halide photoluminescence photoluminescence
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| GB/T 7714 | Zhang, W. , Zheng, W. , Li, L. et al. Cd2+-doped Cs2ZnCl4 Yellow-emitting Phosphor and Its Optical Properties; [Cd2+掺杂 Cs2ZnCl4黄光荧光粉及其光学性能] [J]. | Chinese Journal of Luminescence , 2023 , 44 (3) : 518-527 . |
| MLA | Zhang, W. et al. "Cd2+-doped Cs2ZnCl4 Yellow-emitting Phosphor and Its Optical Properties; [Cd2+掺杂 Cs2ZnCl4黄光荧光粉及其光学性能]" . | Chinese Journal of Luminescence 44 . 3 (2023) : 518-527 . |
| APA | Zhang, W. , Zheng, W. , Li, L. , Huang, P. , Chen, X. . Cd2+-doped Cs2ZnCl4 Yellow-emitting Phosphor and Its Optical Properties; [Cd2+掺杂 Cs2ZnCl4黄光荧光粉及其光学性能] . | Chinese Journal of Luminescence , 2023 , 44 (3) , 518-527 . |
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Optical temperature sensing technology, especially the fluorescence intensity ratio (FIR) type sensor based on Er3+, Yb3+ co-doped up-conversion (UC) luminescent materials, presents numerous opportunities in the field of temperature detection. Various Er3+, Yb3+ co-doped fluorides and oxides have been explored for the application of temperature sensing. Most of these Er3+, Yb3+ co-doped sensing materials are phosphors, for which the high temperature phase and chemical stability is still challenging. The Er3+, Yb3+ co-doped oxide single crystal is a promising solution to explore temperature sensing materials with practical application ability. In this work, an Er3+, Yb3+ co-doped LaBMoO6 single crystal (LBMO-SC: Er3+, Yb3+) is grown through flux assisted spontaneous crystal growth technology. Compared with the Er3+, Yb3+ co-doped LaBMoO6 polycrystalline samples (LBMO-PC: Er3+, Yb3+), the LBMO-SC: Er3+, Yb3+ shows improved UC performance with enhanced light emission and prolonged luminescence lifetime. The UC performance improvement results from the more efficient energy transfer between Yb3+ and Er3+. The energy transfer efficiency from Yb3+ to Er3+ in the LBMO-PC: Er3+, Yb3+ powders sintered at 1000 degrees C for 15 h is 7.3%, while it is 29.7% in the LBMO-SC: Er3+, Yb3+. The strong UC luminescence of LBMO-SC: Er3+, Yb3+ extends the temperature detection range; the luminescence of S-4(3/2) -> I-4(15/2) in LBMO-SC: Er3+, Yb3+ is still measurable even when the temperature reaches 570 K. The LBMO-SC: Er3+, Yb3+ has a maximum value of relative temperature sensitivity of 1.16% K-1 at 300 K. Finally, an optical fiber type temperature sensor with practical application capability is successfully fabricated by using LBMO-SC: Er3+, Yb3+ as the luminescence sensing medium.
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| GB/T 7714 | Li, Xinxu , Bao, Bingting , He, Xinyu et al. Optical temperature sensing with an Er3+, Yb3+ co-doped LaBMoO6 single crystal [J]. | JOURNAL OF MATERIALS CHEMISTRY C , 2023 , 11 (7) : 2494-2504 . |
| MLA | Li, Xinxu et al. "Optical temperature sensing with an Er3+, Yb3+ co-doped LaBMoO6 single crystal" . | JOURNAL OF MATERIALS CHEMISTRY C 11 . 7 (2023) : 2494-2504 . |
| APA | Li, Xinxu , Bao, Bingting , He, Xinyu , Wang, Guoqiang , Huang, Yantang , Li, Lingyun et al. Optical temperature sensing with an Er3+, Yb3+ co-doped LaBMoO6 single crystal . | JOURNAL OF MATERIALS CHEMISTRY C , 2023 , 11 (7) , 2494-2504 . |
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