JOURNAL OF LUMINESCENCE
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2026
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IF 3.8
Xinying Luo,Yang Li,Yiqi Xu,Yue Zhong,Tao Su,Yile Li,Wenming Wang,Yan Pan,Yong Li
The expanding application of near-infrared (NIR) spectroscopy in fields such as bioimaging, night vision, and non-invasive analysis has generated an urgent demand for novel phosphors with ultrabroad emission bands and tunable optical properties. In this work, a series of Cr 3+ -doped Li 2 Mg 3 SnO 6 phosphors were synthesized via a conventional high-temperature solid-state reaction. Under blue light excitation, the phosphors exhibit ultrabroad NIR emission, which is attributed to the 4 T 2 → 4 A 2 transition of Cr 3+ ions. The emission spectra can be effectively modulated by adjusting the Cr 3+ doping concentration. As the concentration increases from 0.1 to 1.5 mol%, the emission peak red-shifts from 725 to 798 nm, accompanied by a significant broadening of the full width at half maximum (FWHM) from 2267.4944 cm −1 to 3373.4350 cm −1 . This behavior indicates strong modulation of energy level splitting and crystal field strength. The optimal photoluminescence (PL) intensity is achieved at a Cr 3+ doping concentration of 0.5 mol%. Furthermore, the excitation spectra monitored at different emission wavelengths (702 and 766 nm) exhibit broad spectral region spanning from the ultraviolet to visible light, with a dominant excitation peak centered at approximately 450 nm, well matching the emission of commercial blue light-emitting diode (LED) chips. A NIR phosphor-converted LED (pc-LED) fabricated using the optimized phosphor demonstrates considerable potential for applications in bioimaging and night vision.
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高影响因子
ACS Sustainable Chemistry & Engineering
·
2026
·
IF 7.6
Biao Lu,Kaifeng Yu,Huihui Cao,Jianing Zhang,Jinpeng Cao,Changzhi Tu,Yaqi Zhao,Bo Liu,Feifei Zhang
Redox flow batteries (RFBs) are emerging as a promising technology for large-scale energy storage applications due to their low cost, high safety, and environmentally benign nature. Among them, aqueous tin-based redox flow batteries (TRFBs) have attracted increasing attention for their dendrite-free plating and suppression of the hydrogen evolution reaction. However, their development has been hindered by the low solubility of Sn(II) electrolytes, sluggish Sn(II)/Sn reaction kinetics, and the irreversible formation of inactive “dead Sn.” Herein, we present a dual strategy combining ligand engineering and redox-mediated reactions to overcome these limitations. By introducing ethylenediaminetetraacetic acid (EDTA), a stable EDTA–Sn(OH)3– complex is formed, which enhances the Sn(II) solubility up to 0.3 M and modulates the Sn deposition morphology, thereby improving diffusion behavior and redox kinetics. Furthermore, 7,8-dihydroxyphenazine-2-sulfonic acid (DHPS) is employed as a redox mediator, which spontaneously reacts with inactive Sn deposits, effectively dissolving “dead Sn” and significantly improving capacity retention. When paired with potassium ferrocyanide, the EDTA-Sn-DHPS/Fe RFB exhibits excellent rate capabilities, prolonged cycling stability (300 cycles at 80 mA cm–2 and 20 mAh cm–2), a high energy efficiency of 84.5%, and a peak power density of 228.6 mW cm–2. This strategy offers a promising route for the development of high-performance TRFBs.
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高影响因子
POLYHEDRON
·
2026
·
IF 2.8
Jiaxing Qi,Zixiao Qin,Yangchun Mo,Yani Xue,Xiaopeng Wei,Jilin Wang,Fei Long
Organic-inorganic hybrid metal halides have emerged as promising materials, benefiting from their affordable production, synthetic simplicity, and superior optoelectronic properties. In this study, diisopropylamine was selected as the A-site organic ligand to construct tin-based halide organic–inorganic hybrid crystals, and synthesized two tin-based organic-inorganic hybrid single crystals, (C 6 H 16 N) 2 SnCl 6 and (C 6 H 16 N) 2 SnBr 6 , using the solvent evaporation method. A series of characterizations, including single-crystal and powder X-ray diffraction, Raman and IR spectroscopy, thermogravimetric analysis, and UV–Vis diffuse reflectance spectroscopy, were conducted on both single crystals. The test results show that (C 6 H 16 N) 2 SnCl 6 belongs to P2 1 /n in the monoclinic system, and (C 6 H 16 N) 2 SnBr 6 belongs to the Pca2 1 space group in the orthorhombic system. The cations of both crystals were [C 6 H 16 N] + , and the anions were [SnCl 6 ] 2− and [SnBr 6 ] 2− respectively. Both belong to the zero-dimensional perovskite single crystals with octahedral coordination. Infrared and Raman spectroscopy studies indicated the presence of [C 6 H 16 N] + , [SnCl 6 ] 2− and [SnBr 6 ] 2− . The good thermal stabilities of the two crystals are 180 °C and 190 °C respectively. The band gap of (C 6 H 16 N) 2 SnCl 6 was 3.98 eV, and that of (C 6 H 16 N) 2 SnBr 6 was approximately 2.78 eV. Both belong to wide band gap semiconductor materials. This research contributes to the advancement of environmentally benign, thermally stable organic-inorganic hybrid materials.
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2026
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IF 6.7
Tiqun Wei,Liang Yang,Yan Wang,Taiping Han,Jianwei Dao,Junlin Xue,Jiahao Yan,Run Hu
Among various glass matrices, low-melting-point glass stands out as an excellent candidate for fabricating high-performance white light-emitting diodes (LED), owing to its brilliant physical, chemical and thermal stability. The optimization of glass components to enhance optical performance constitutes a critical research challenge. Our team first proposed using orthogonal design to prepare phosphor-in-glass (PiG) and investigate glass matrix ratios. When adding Y 3 Al 5 O 12 :Ce 3+ (YAG) phosphor, the 2:4:3 glass matrix demonstrated optimal optical performance, achieving a luminous efficacy of 145.31 lm/W at 50 mA. Impressively, commercially available BaSi₂O₂N₂: Eu²⁺ (BSON) and CaAlSiN₃: Eu²⁺ (CASN) phosphors were incorporated into YAG glass, the prepared PiG-LED exhibited full spectrum emission under blue chip excitation with low correlated color temperature (CCT = 3656 K) and excellent color rendering (R a = 92.3, R 9 = 93, R 13 = 95). The D uv of the BSON&YAG&CASN-PiG sample is -0.0013, which is lower than the ±0.006 tolerance required for practical lighting applications. In this study, a novel idea for PiG composition and property optimization by orthogonal design is proposed. The experimental results confirm its feasibility as a widely applicable idea for the preparation and optimization of glass composites. The PiG-LED data show the excellence and application potential of this method.
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Zijun Yi,Long Zhang,Asif Al Jaman,Hui Li,Fang Ding,Yingjie Cai,Xuehong Ren
The development of low-cost and environmentally friendly light-absorbing materials has emerged as important direction in photovoltaic (PV) technologies. Among these candidates, Cu 2 SnS 3 (CTS) material has attracted considerable interest due to the favorable band gap, strong absorption coefficient, and non-toxic elemental composition. However, the efficiency of CTS devices remains hindered by cation disorder, deep-level defects and poor film quality, indicating the need for green and controllable approaches capable of preparing high-performance CTS films. Based on this, this work developed a green mechanochemical wet ball milling strategy. By milling Cu 2 O and SnO in a deionized water/isopropanol (IPA) medium, a uniform precursor dispersion was obtained, enabling the formation of dense CTS absorber layers through spin coating followed by sulfurization. To further tune the local chemical environment, a small amount of TiO 2 was incorporated to partially replace SnO. Benefiting from the similar ionic radii and valence states of Ti 4 + and Sn 4+ , the isovalent substitution effectively adjusted the local coordination structure and reduced Sn-related deep-level defects. The optimized device delivered a marked improvement in photoelectric conversion efficiency (PCE), increasing from 4.68 % to 6.29 %, along with an open-circuit voltage ( V OC ) of 0.47 V that ranked among the highest values reported for CTS-based solar cells. This work demonstrated the effectiveness of mechanochemical methods combined with cation regulation in improving the quality and performance of CTS films, providing an effective pathway for developing green and sustainable thin-film solar cells.
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高影响因子
Inorganic Chemistry Frontiers
·
2023
·Vol. 10
·期 8
·2268-2275
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IF 7
Xiao-Bao Li,Chun-Li Hu,Fang Kong,Jiang-Gao Mao
Four new phosphates, namely, PbZn(PO4)F (1), PbSn(PO4)Cl (2), PbSn(PO4)Br (3) and PbSn(PO4)I (4), were successfully synthesized by hydrothermal and solid-state reaction methods. PbZn(PO4)F (1) was crystallized in a polar space group Pna21 and showed a significant SHG intensity of about 1.6 × KDP. PbSn(PO4)Cl (2) and PbSn(PO4)Br (3) were isostructural compounds, and they were crystallized in a monoclinic space group P21/n while PbSn(PO4)I (4) was crystallized in a triclinic space group P. PbZn(PO4)F (1) features a new 3D framework while compounds 2–4 show a layered structure. Interestingly, the thermal stability and band gap of PbM(PO4)X are decreased with an increase of the atomic number of the halogen atom, while the rule for birefringence is the opposite. Our work revealed the evolution effects of the halogen atoms on the structure and optical properties of PbM(PO4)X compounds.
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Journal of Materials Chemistry C
·
2023
·Vol. 11
·期 25
·8524-8532
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IF 6.4
Luojia Huang,Hangtao Ye,Weidong Xiang,Hongbin Fan,Xiaojuan Liang
Zero-dimensional lead-free metal halides Cs3Cu2X5 (X = Cl, Br, and I) have attracted much attention in recent years due to their unique structure, photoelectric properties and environment-friendly nature; unfortunately they are sensitive to humidity. Herein, Cs3Cu2I5 nanocrystals (NCs) were successfully precipitated in situ within glass using the methods of melt quenching and heat treatment (Cs3Cu2I5 glass ceramic). The optical characterization and morphological characterization provide evidence for the successful in situ precipitation of the Cs3Cu2I5 glass ceramic, and the photoluminescence quantum yield (PLQY) is as high as 63.3%. The water stability of Cs3Cu2I5 NCs is greatly improved due to the inorganic glass matrix, and the fluorescence intensity remains largely unchanged for 30 days. The Cs3Cu2I5 glass ceramic endows Cs3Cu2I5 NCs with a wider range of application areas. Finally, by constructing an X-ray imaging system using Cs3Cu2I5 glass ceramics, springs in opaque samples were observed to be visible, demonstrating the great potential of Cs3Cu2I5 glass ceramics with long-term stability for X-ray detection imaging.
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高影响因子
INORGANIC CHEMISTRY
·
2022
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IF 5.436
Lihan Deng,Mengfan Wu,Zhihua Yang,Shujuan Han,Shilie Pan
Sn3B10O17Cl2 was successfully obtained for the first time under the sealed environment and crystallized in the space group Pbcn belonging to the orthorhombic system, which is featured by the fundamental building blocks [B5O11] that are linked to construct a three-dimensional framework with Cl and Sn atoms located inside and at the edge of the channel to balance the charge. Moreover, the optical performance measurement shows that Sn3B10O17Cl2 owns a cutoff edge of about 280 nm. Theoretical study indicates its large optical anisotropy with the birefringence 0.125@546 nm; meanwhile, the structure–performance relationships were analyzed by the first-principle calculation.
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PubMed
高影响因子
Journal of Materials Chemistry C
·
2022
·Vol. 10
·期 45
·17109-17118
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IF 8.067
Jiamin Sun,Zhentong Lu,Yi Liu,Dongwei Zheng,Juqing Li,Lei Jin,Jiayu Zhang,Haoran Zhang,Yingliang Liu,Xuejie Zhang,Bingfu Lei
Laser-driven projection technology urgently requires green emitters with a narrow bandwidth, high quantum efficiency, and long-term stability to compensate for the “green gap”. Herein, a highly stable CsPbBr3–SiO2 glass ceramic film was synthesized by co-sintering high-photostability CsPbBr3–SiO2 powder and low-melting glass frit on sapphire, where the high thermal conductivity of sapphire and the SiO2 barriers could help maintain the stability of CsPbBr3 nanocrystals (NCs), endowing the well-known CsPbBr3 material with the possibility of application in the field of laser-driven projection displays. Furthermore, a “fluorescence wheel” was fabricated by pasting the CsPbBr3–SiO2 glass ceramic film on a micro motor, which could effectively alleviate the thermal quenching and increase the laser saturation threshold. Benefiting from its elaborate design, the operating temperature of the glass ceramic film was reduced from 351 °C to 75 °C and its luminescence intensity was maintained at 86% of its initial brightness at the laser power density of 4.5 W mm−2 for 60 min. As a proof-of-concept experiment, an all-inorganic multi-color fluorescent plate with red and green light emissions was obtained by combining the K2SiF6:Mn4+ phosphor and CsPbBr3–SiO2 powder in a patterned manner on sapphire, which provides an idea for the application of CsPbBr3 NCs and K2SiF6:Mn4+ phosphor in laser projection systems.
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高影响因子
Journal of Sustainable Metallurgy
·
2022
·Vol. 8
·期 2
·754-767
·
IF 3.068
Zhang Lili,Yue Qiao,Yang Hongwei
The high-temperature volatilization behavior of the SnO–SiO 2 and SnO–CaO–SiO 2 slag systems was studied by simultaneous thermal analysis. The volatilization characteristics of the two systems with different SnO contents and different heating rates were discussed, and the kinetic parameters, reaction mechanism, and thermodynamic parameters of the volatilization reaction of the slag system at high temperature were calculated. The results of thermal analysis show that the volatilization of tin slag at high temperature is related to the activity of SnO and the decomposition of stannous silicate in tin slag. The slag system has obvious volatilization effect when the content of SnO is more than 60% in the SnO–SiO 2 binary slag system. When CaO is added into the binary slag system, the volatilization of slag system becomes easier. The volatilization rate decreases with increasing heating rate. The volatilization kinetic parameters and mechanism functions of the SnO–SiO 2 and SnO–CaO–SiO 2 systems were calculated by Coats–Redfern and Achar–Brindley–Sharp–Wendworth methods. It is concluded that the volatilization of tin slag at high temperature is controlled by three-dimensional diffusion mechanism. The mechanism function is Jander equation with integral form of [1 − (1 − α ) 1/3 ] 2 and the differential form of 3/2(1 − α ) 2/3 [1 − (1 − α ) 1/3 ] −1 . The rate constants of the SnO–SiO 2 and SnO–CaO–SiO 2 systems are \(k\, = \,1.36\, \times \,10^{16} \,\exp \,\left( {{{ - \,61408.61} \mathord{\left/ {\vphantom {{ - \,61408.61} T}} \right. \kern-\nulldelimiterspace} T}} \right)\) and \(k\, = \,1.61\, \times \,10^{17} \,\exp \,\left( {{{ - \,64869.66} \mathord{\left/ {\vphantom {{ - \,64869.66} T}} \right. \kern-\nulldelimiterspace} T}} \right)\) , and the isokinetic temperatures are 1174.4 and 1208.3 °C, respectively. Finally, the thermodynamic parameters of the slag system in the high-temperature volatilization process are discussed. The activation enthalpy ΔH of the SnO–SiO 2 and SnO–CaO–SiO 2 systems is 498.33 and 526.96 kJ/mol, respectively. The activation Gibbs free energy ΔG is 436.56 and 433.87 kJ/mol, and the activation entropy ΔS is 42.66 and 62.84 J/(mol K), respectively. Graphical Abstract
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
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IF 12.5
Meng Gao,Rongyi Kuang,Binchang Wu,Huiwang Lian,Yiwen Zhu,Jingying Sun,Jing Wang
Hydrogen-bond-triggered reversible hydration/dehydration in 0D metal halides • Mild-condition (50–80 °C) and auxiliary-free hydration/dehydration • Sn 2+ -activated 30 nm emission shift with linear humidity response • Portable visual sensor for electronic packaging humidity monitoring Metal halides are attractive for hydrochromic moisture sensing due to their tunable structures, but the existing systems based on metal-coordinated water suffer from high dehydration temperatures and complex reaction pathways. Herein, we report a distinct hydrogen-bond-triggered hydrochromic mechanism in zero-dimensional (0D) metal halides, realized through a reversible phase transition between hydrated (C 5 H 14 N 2 ·H 2 O)CdBr 4 and dehydrated (C 5 H 14 N 2 )CdBr 4 . In contrast to conventional metal-coordinated water systems, the weak, non-coordinative hydrogen bonds in this system enable a facile and reversible hydration/dehydration cycle at a mild temperature (84 °C) without auxiliary reactants or by-products, while also allowing water molecules to be stored within the lattice during hydration. Doping with Sn 2+ results in a fully reversible 30 nm emission shift, from 630 nm in the dehydrated phase to 660 nm in the hydrated phase, exhibiting a linear response across a broad humidity range (32–82% RH). Leveraging its high stability and recyclability, we fabricate a portable humidity sensor that allows for on-site, visual monitoring of moisture intrusion, offering a promising platform for instrument-free electronic packaging inspection. Download: Download high-res image (328KB) Download: Download full-size image
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EUROPEAN POLYMER JOURNAL
·
2021
·
IF 4.598
Fang-Yu Ren,Fei You,Song Gao,Wei-Hang Xie,Liang-Nian He,Hong-Ru Li
As a consequence of the great demand and extended application of polyurethanes in various fields, the development of green processes for their production and functional polyurethane materials has received widespread attention. In this regard, the biomass-derived polyurethane via the non-isocyanate route could be promising. In this work, the castor-based polyurethanes were designed and synthesized through a non-isocyanate route by employing ricinoleic acid as the starting material, in which the oligomeric ricinoleic acid (ORA) with variable average polymerization degree was used as the key intermediate. To access the ORA with different average polymerization degree, the solid Lewis acid tin(II) oxide (SnO) was developed as the efficient and recyclable catalyst and the average polymerization degree of ORA was regulated by the reaction time at 210 °C. After sequential esterification, epoxidation, cycloaddition with CO 2 and polyaddition with 1,6-hexamethylene diamine (HMDA) or isophorone diamine (IPDA), a series of polyhydroxyurethanes (PHUs) with different tensile strength and elongation at break as well as the thermal stability and the glass transition temperature were obtained depending on the type of diamine and the average polymerization degree of ORA, indicating the functional role of the polymerization degree of ORA in regulating the mechanical and thermal properties of the resulting materials. This protocol for the castor-based PHUs preparation in this work not only represents a green and sustainable way to produce bio-based material, but also provides a convenient way to change the average polymerization degree of ORA and then alter the properties of resulting polyurethanes.
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高影响因子
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