JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2024
·Vol. 108
·期 4
·e20312
·
IF 3.5
Shuangli Dong,Weichao Wang,Qinyuan Zhang
Theoretical prediction of glass compositions with certain performance requirements is a long-standing challenge in glass research. The difficulty lies in revealing the relationship of glass's composition–structure–property (C–S–P), and establishing a predictive calculation method for glass properties with high accuracy. Here we determine quantitatively the C–S–P relationships of four silicate laser glasses using nearest-neighboring congruently melting compounds (CMCs) as “component and structural motifs”. For all studied silicate systems, physical properties such as density and refractive index are predicted with an error of less than 5%. Spectroscopic properties, including Judd–Ofelt parameters, fluorescence branching ratio ( β ), effective bandwidth (Δ λ eff ), emission cross-section ( σ e ), gain bandwidth, and lifetime, are predicted with an error of less than 10%, with some properties such as β , Δλ eff , and σ e showing an error of less than 5% in specific systems. Four C–S–P databases have also been constructed, containing detailed physical and spectroscopic properties of over 1200 compositions, facilitating the optimization of glass composition. These findings highlight the significance of nearest-neighboring CMCs in understanding and developing high-performance laser glasses.
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高影响因子
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION
·
2025
·Vol. 40
·期 5
·1275-1285
·
IF 1.1
Lin Ying,Li Bohan,Feng Jinyang,Feng Xiaoping,Wu Donghua,Ma Xiao
Ag-doped alkali borosilicate glasses with different TiO 2 contents were prepared by the melting method. The viscosity-temperature curves of the glass samples were fitted using the MYEGA equation, and it was found that the viscosity of the glass showed a gradual decrease with the increase of TiO 2 content in the interval of the crystallization temperature of the glass. The results of XPS analysis show that TiO 2 mainly enters the glass network in the form of [TiO 4 ] before the heat treatment of the glass samples. In contrast, after the heat treatment, the contents of [TiO 4 ] and [TiO 5 ] in the glass decreased significantly, and the content of [TiO 6 ] increased, which led to the separation of TiO 2 from the glass network. The microhardness of glass shows the same pattern. Raman spectral analysis shows that the introduction of TiO 2 promotes phase separation in glass. The reduction of glass viscosity facilitates the movement of particles within the glass, while the creation of phase separation promotes heterogeneous nucleation of grains. FE-SEM analysis reveals that the silver halide grains in the heat-treated glass are dispersed in the matrix in a spherical shape, and the average size of the silver halide grains tends to increase with the increase of TiO 2 content.
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Nature Communications
·
2026
·
IF 15.7
Chen Chuanli,Yang Yuezhen,Zhang Lutong,Dai Wenbo,Lei Yunxiang,Liu Miaochang,Wu Huayue,Huang Xiaobo,Yan Dongpeng
Molecular room-temperature phosphorescence (RTP) materials with compact and ordered structures organized by intermolecular interactions have proven to be a newly-emerged strategy for high-performance luminescence. However, typical crystalline materials exhibit intrinsic brittleness and compromised optical transparency due to their highly ordered packing, thereby restricting their applicability in diverse functional systems. Herein, a universal non-conjugated molecule (1,2,3,4-butane tetracarboxylic acid) with abundant hydrogen-bonding positions is introduced as a host matrix for supramolecular glasses (SGs) through a convenient evaporation-induced self-assembly procedure. A series of SGs doped with aromatic anhydride derivatives is fabricated, exhibiting highly efficient ultralong phosphorescence with afterglow up to 40 s and quantum yields of 56.8%. Experimental and computational studies show that the multiple hydrogen bonds synergistically facilitate glass formation by stabilizing disordered structures while establishing a rigid molecular matrix, which effectively suppressed non-radiative decay of triplet excitons. The doped SGs demonstrate largely enhanced phosphorescent performance, including high temperature afterglow up to 200 o C and robust tolerance in various extreme environments compared with crystal counterparts. Particularly, a large-scale fabrication (25 cm × 25 cm) and shaping capability that is unattainable by traditional crystals. This work thus offers significant potential of these SGs for advanced displays and anti-counterfeiting applications.
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PubMed
高影响因子
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2020
·Vol. 103
·期 8
·4275-4285
·
IF 3.502
Mengting Guo,Chongyun Shao,Yang Zhang,Jingbo Yu,Yan Jiao,Malgorzata Guzik,Georges Boulon,Jinjun Ren,Lili Hu
The homogeneous Yb 3+ /Al 3+ /B 3+ -co-doped silica glasses were prepared via a sol-gel method. The impact of B 2 O 3 addition on the physical and optical properties and network structure was systematically studied. The network structure was investigated by the Fourier Transform Infrared (FT-IR), Raman spectra, and Solid State Nuclear Magnetic Resonance (SSNMR). Herein, B 2 O 3 addition can continuously decrease the refractive index and density. When B 2 O 3 is lower than 2 mol%, B 2 O 3 addition can obviously decrease the scalar crystal field parameters, Yb 3+ asymmetry degree, Yb 3+ cross-sections, due to the generation of Yb–O–B bonds at the cost of partial Yb–O–Al/Si ones. When B 2 O 3 is more than 2 mol%, FT-IR, Raman spectra, and SSNMR results indicate that further increased B atoms prefer to connect with Si and Al rather than Yb. Consequently, the above parameters are basically unchanged. Based on the results, an intuitive model of structure and properties evolution during the substitution of SiO 2 by B 2 O 3 has been established.
研究领域:
材料科学
·
光学材料
·
玻璃科学
·
光谱学
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Advanced Optical Materials
·
2026
·
IF 7.2
Zhou-Xiao Xiang,Zi-Long You,Jing-Hua Chen,Jun-Hua Wei,Zi-Lin He,Qing-Peng Peng,Tian-Chi Wang,Kong-Lan Chen,Dai-Bin Kuang
Organic-inorganic hybrid metal halide (OIMH) glass combines advantages such as low preparation temperature, high optical transparency, and abundant structural flexibility, making it a promising candidate for high-performance X-ray imaging. However, the recrystallization-induced devitrification hinders its long-term application. Therefore, developing OIMH glass with both high scintillation performance and excellent glass-forming ability remains an important challenge. In this work, we employ a synergistic Mn/Zn bimetallic engineering strategy to enhance the scintillation performance of Mn-based glass by increasing the Mn–Mn distance, improving X-ray absorption ability, and promoting optical transparency. The incorporation of a dimethylamine group onto the phosphonium cation endows (BDMAP) 2 Mn x Zn 1-x Br 4 (BDMAP = benzyl (4-(N, N-dimethylamino) phenyl) diphenylphosphonium) with high glass-transition temperatures (T g >87°C). The optimized (BDMAP) 2 Mn 0.3 Zn 0.7 Br 4 transparent luminescent OIMH glass shows a high light yield (LY) of 18 315 photons/MeV, a low limit of detection (LOD) of 85.05 nGy/s, and an outstanding spatial resolution of 20 lp/mm. Notably, (BDMAP) 2 Mn 0.3 Zn 0.7 Br 4 glass shows no crystallization even after heating at 100°C for 21 weeks, demonstrating strong resistance to recrystallization. This study presents a rational design route for regulating the scintillation performance of OIMH glasses with high stability.
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MODERN PHYSICS LETTERS B
·
2024
·
IF 1.8
Yan Fang,Chongjun He,Fangzhou Chen,Yiyang He,Yuangang Lu,Lijuan Liu,Mingjun Xia,Chenguang Deng,Qian Li,Huiting Chen
Gallium-tellurite glass is a new optical material with good transmittance in the infrared region up to 6.5 μ m . Three different tellurate glasses were prepared: TeO 2 –ZnO–Ga 2 O 3 (TZG), TeO 2 –ZnO–La 2 O 3 (TZL) and TeO 2 –ZnO–B 2 O 3 (TZB). X-ray diffraction indicates that no crystal precipitates in the three glass systems, which maintain a stable glass state. Raman scattering experiments and fluorescence emission spectroscopy measurements were carried out on the tellulate glasses doped with the same concentration of Tm 3 + . It was found that the phonon energy of TZG(TeO 2 –ZnO–Ga 2 O 3 )-doped thulium glass is the lowest, and the emission light at 1380 nm is the strongest with ∼ 5 1 nm fluorescence FWHM. These results show that Tm-doped TZG glass is a good luminescent material. Refractive indices were measured by the minimum deviation method. Sellmeier dispersion equation is obtained, which can be used to calculate the refractive index within visible and near-infrared spectral range. Furthermore, different Tm 3 + concentrations (0.4%, 0.8%, 1.2% and 2%) TZG glasses were prepared, the emission spectra and fluorescence lifetime were measured, and the emitted light was strongest when the thulium ion doping concentration is 1.2%. All the results suggest that these newly developed ternary tellurite glass systems are promising candidates for near/mid-infrared laser glass fibers, fiber amplifiers, or lasers.
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高影响因子
Photonics Research
·
2021
·Vol. 9
·期 12
·2369-2380
·
IF 7.08
Yao Tong,Qin Wang,Heng Yang,Xiaoting Liu,Enrou Mei,Xiaojuan Liang,Xiaojuan Liang,Zhijun Zhang,Zhijun Zhang,Weidong Xiang
As an emerging scintillation material, metal halide perovskite (CsPbX3) has been deemed the most potentially valuable candidate in X-ray detection and medical imaging. Nevertheless, it is a continuing challenge to implement efficient radioluminescence (RL) with high radiation stability and moisture resistance. Moreover, the optimized luminescence properties and excellent uniformity of CsPbX3 glass are also key points for obtaining perfect X-ray images. Herein, we have successfully precipitated Eu3+-doped CsPbBr3 nanocrystals (NCs) with improved photoluminescence quantum yield (≈58.6%) because partial Eu3+ entered the perovskite lattice in a robust borosilicate glass matrix by in situ crystallization. The small amount of Eu addition made the lattice of NCs shrink and promoted uniform distribution of CsPbBr3 NCs in the glass, which effectively reduced the light scattering of the sample. Subsequently, multimodal RL intensity of the CsPbBr3/CsPbBr3:xEu NCs glasses (CPB-0Eu/CPB-xEu) as a function of X-ray dose rate showed a superlinear relationship to the benefit of obtaining satisfactory X-ray images. Also, the outstanding radiation stability and water resistance of CPB-xEu were confirmed due to the protection of the robust glass matrix. Finally, an X-ray imaging system using a CPB-xEu scintillator was constructed, and the spring in the opaque sample was legibly detected under the motivation of X-rays, indicating that CsPbX3 glasses possess extensive application prospects in terms of X-ray detection and medical imaging.
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高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2021
·Vol. 31
·期 24
·2101505
·
IF 18.808
Endian Wang,Xinfang Li,Yu Zhang,Lingling Ma,Qing Xu,Yuanzheng Yue,Wenzhong Wang,Qin Li,Jianding Yu,Jiang Chang
Tissue regeneration in complex lesions such as the site of tumors, bacterial infection, and sites lacking blood vessels, has been a huge challenge. Therefore, developing bioactive implantable materials with multi-functional properties such as tumor destruction, bacteria growth inhibition, and angiogenesis promotion is of great significance. In this study, black CaO-SiO 2 -TiO 2 (CST) glasses are prepared through the containerless melting approach, by which heterogeneous nucleation can be avoided and thereby glass formation becomes possible via fast quenching. This approach enables the formation of trivalent titanium (Ti 3+ ) without using a reducing atmosphere or reducing agents. The black CST glasses are found in this study to possess a strong ability to inhibit bacteria and tumors by their excellent photothermal and photocatalytic effects. Strikingly, these glasses also promote the formation of blood vessels and accelerate the healing of chronic wounds by the synergistic effects of the photothermal effect and Si ions. Thus, this glass system can be a promising multi-functional material for tissue regeneration in complex lesions.
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高影响因子
Advanced Optical Materials
·
2021
·Vol. 9
·期 8
·2002075
·
IF 9.926
Qin Wang,Mengfeifei Jin,Ya Chen,Yi Zhao,Yao Tong,Ziyao He,Xiaojuan Liang,Weidong Xiang
Currently, high optical purity, perfect stability, and high photoluminescence quantum yield (PLQY) are very important, being the key to obtain high-quality luminescent materials. The research of perovskite nanocrystals (NCs) as optical materials is in full swing. Nevertheless, the low PLQY value, especially for the red-emitting perovskite NCs, is a main obstacle to applications in display. This work reports the optimized components to synthesize CsPb(Br/I) 3 NCs glasses whose PLQY achieves a big boost from 15.4% to ≈ 60% for the first time. Furthermore, the specimens exhibit exceptional tolerance to water and thermal and hence contribute to applicability in high-performance light-emitting diode (LED) and 3D printing. By combining CsPb(Br/I) 3 NCs glass powder and yttrium aluminum garnet (YAG):Ce phosphor with blue chips, the assembled white LEDs reach a high luminous efficiency at 113.0 lm W −1 . The resulting high PLQY is to the benefit of a substantial step toward the practical application of inorganic perovskite materials in the fields of optoelectronic devices and additive manufacturing.
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高影响因子
ACS Photonics
·
2021
·
IF 7.529
Xiaodong Liu,Enrou Mei,Zhengzheng Liu,Juan Du,Xiaojuan Liang,Weidong Xiang
The inherent instability severely limits the applications of cesium lead halide (CsPbX3) perovskite quantum dots (PQDs). Herein, introducing these CsPbX3 PQDs into all-inorganic amorphous solid matrices is a simple and effective encapsulation strategy to achieve prominent chemical stability. In this work, CsPbCl2Br1PQDs are precipitated in borosilicate glasses with the aid of a crystallization control process, followed by the explorations of the optical properties and amplified spontaneous emission (ASE) performance. Our results indicate that the prepared CsPbCl2Br1PQDs-embedded glasses exhibit tunable photoluminescence (PL) emissions and absorption edges by controlling the heat-treatment temperatures. Simultaneously, ASE behaviors of CsPbCl2Br1PQDs-embedded inorganic glasses have been first demonstrated under 800 nm fs laser excitation at room temperature, the threshold reduces from 1.24 to 0.19 mJ/cm2 as the crystallization temperatures increase from 440 to 530 °C. Finally, a robust inorganic glass host can insulate the air from CsPbX3 PQDs, which enables the attainment of CsPbCl2Br1PQDs stability, including better thermostability and photostability. It can be seen that the heat-treatment temperature in the fabrication process is of critical importance in affecting the CsPbX3 PQDs crystallization and quality, which provides a new strategy for laser applications.
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高影响因子
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2020
·Vol. 103
·期 8
·4203-4213
·
IF 3.502
Guoquan Qian,Guowu Tang,Qi Qian,Yongbao Xiao,Dongdan Chen,Zhonghong Jiang,Zhongmin Yang
Germanate laser glasses have received much attention as a promising host materials for mid-infrared fiber lasers in recent years because of the outstanding infrared transparency, low phonon energy, and high rare earth solubility of such glasses. However, the development of high-performance germanate laser glasses is usually based on intuition and a trial-and-error method, which can involve long experimental periods and high costs, and thus, this approach is highly inefficient. Recently, with proposals for materials genome engineering, the concept of the “glass genome” has grown of interest to us. Herein, the structures of Tm 3+ -doped germanate laser glasses (BaO–GeO 2 and BaO–La 2 O 3 –GeO 2 ) were investigated by Fourier transform infrared spectra (FTIR) and Raman spectra analyses, which revealed that the resulting glass contains similar structural groups to the neighboring congruently melted glassy compounds (NCMGCs) in the composition diagram. What is more, the structure and properties of the resulting laser glasses largely depend on NCMGCs. Then, the glass-forming region, physical properties, and luminescence properties were calculated via the use of NCMGCs in Tm 3+ -doped BaO–GeO 2 binary and BaO–La 2 O 3 –GeO 2 ternary laser glass systems. The calculated results were in good agreement with the experimental results, thus demonstrating that our approach is practical for predicting the glass-forming region, physical properties, and luminescence properties in Tm 3+ -doped BaO–GeO 2 binary and BaO–La 2 O 3 –GeO 2 ternary laser glass systems. This work may provide an effective method to develop Tm 3+ -doped germanate laser glasses rapidly and at low cost.
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高影响因子
OPTICAL AND QUANTUM ELECTRONICS
·
2020
·Vol. 52
·期 6
·1-8
·
IF 1.842
Wang Weirong,Tuo Tianye,Jiang Chun
A facile pathway for solid-state material luminescence enhancement is proposed here by coating graphene on the surface of luminescent material. Ln 3+ (Yb 3+ /Er 3+ )-doped germanium tellurite glasses are prepared by conventional melting and quenching method. With the excitation of 980 nm laser diode, the photo-luminescence intensities of the graphene-coated and uncoated glass samples are measured with different incidence angle of excitation light. When the incidence angle is less than 15°, luminescence enhancement can be observed in the coated samples compared with uncoated one. The insight for the enhancement is also discussed.
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