JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2019
·Vol. 102
·期 12
·7288-7298
·
IF 3.094
Guoquan Qian,Guowu Tang,Qi Qian,Min Sun,Dongdan Chen,Zhonghong Jiang,Zhongmin Yang
Although great advance has been made in glass science, predicting luminescence properties of laser glass poses a significant challenge for scientists due to the complex relationship between the composition, structure, and properties of the rare earth ions doped laser glasses. The development of high-performance laser glass usually relies on intuition and trial-and-error. Recently, with the proposal of the materials genome engineering, the “glass genome” has also attracted much attention. Here, the structure of the Nd 3+ doped B 2 O 3 -Li 2 O laser glasses was analyzed using Fourier transform infrared spectra and nuclear magnetic resonance, revealing that the glass contains similar glass-forming ion-centered coordination polyhedron structure groups to the neighbor congruent glassy compounds. The structure and properties of glass largely depend on the neighbor congruent glassy compounds. Therefore, the structure and luminescence properties of Nd 3+ doped B 2 O 3 -Li 2 O and B 2 O 3 -MgO-Li 2 O laser glasses can be quantitatively predicted via the neighbor congruent glassy compounds. The predictive values are in good agreement with the experimental data, which indicates that our approach is an effective way to predict the structure and luminescence properties of Nd 3+ doped borate laser glasses.
研究领域:
材料科学
·
光学材料
·
激光物理
·
玻璃化学
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DOI
高影响因子
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2026
·Vol. 109
·期 5
·e70779
·
IF 4.2
Xinyu Liu,Shuangli Dong,Yao Ji,Qinyuan Zhang
Establishing the composition–structure–property (C–S–P) relationship in laser glasses is crucial for accelerating their rational design and moving beyond traditional “trial-and-error methods.” However, the intrinsic disorder of glass and the complex local environment of rare-earth ions present significant challenges for predicting spectroscopic properties using existing physical and statistical models. This study focuses on Nd 3+ -doped SiO 2 –CaO–Li 2 O–Al 2 O 3 (SCLA) quaternary silicate laser glasses. By employing nearest-neighboring congruently melting compounds (CMCs) as “structural motifs” and verifying structural correlations via molecular dynamics simulations, we achieve quantitative prediction of key glass properties. For Nd 3+ -doped SCLA glasses, the prediction errors for structural parameters and physical properties are less than 5%, while those for spectroscopic parameters are all below 10%. Furthermore, a comprehensive C–S–P database for Nd 3+ -doped SCLA laser glasses has been established, including five physical and nine spectroscopic properties across 7800 compositions. This provides reliable data support for the rapid screening and optimization of high-performance glass compositions. These findings verify the reliability of the phase diagram approach (PDA) for quantitatively predicting spectroscopic properties in complex quaternary systems and offer a promising approach for tailoring the performance of laser glasses.
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DOI
高影响因子
MATERIALS TECHNOLOGY
·
2020
·
IF 1.738
Huan Yang,Renxin Xu,Yaohui Zhao,Jian Cai
Mg0.2Mn0.8NdxFe2-xO4 (x = 0.000, 0.025, 0.050, 0.075 and 0.010) nano crystalline is synthesized via hydrothermal technique. Single cubic spinel phase is confirmed by XRD and the formation of Mg0.2Mn0.8NdxFe2-xO4 is verified by EDS. The average size of the nanoferrites is examined by TEM image. Nd3+ substituted Mg-Mn nanoferrites exhibit the low saturation magnetization (Ms) and high coercivity (Hc). The ferrite composites present that the resistivity and the magnetic loss are less than 2.8×107 Ω·cm and 0.75 in the range of 2-18 GHz, respectively. The optimized Mg0.2Mn0.8NdxFe2-xO4 (x=0.050) showed the minimum reflection loss of -39.80 dB at 1.4 GHz and effective absorption bandwidth (lower than -10 dB) of 7.58 GHz with a thickness of only 3 mm. The high coercivity, resistivity and excellent wave absorption performance indicate that the addition of Nd3+ contributes to the synthesis of the excellent soft magnetic materials and wave absorbing materials.
研究领域:
材料科学
·
电磁学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2022
·
IF 7.968
Yong-Yuan Chen,Jin-Gang Yu
Due to its high dispersibility in aqueous solution, the application of graphene oxide (GO) for wastewater treatment will cause secondary pollution. To realize its easy separation and recycling, the introduction of electron-rich nitrogen groups onto GO was performed, which can greatly reduce its dispersibility and produce reusable adsorbents with excellent adsorption selectivity . Amino grafted GO composite was prepared by a simple one-step coupling reaction between GO and 4-(1,2,4-triazole-1-yl)aniline (TYA). The as-prepared GO-TYA composite exhibited long-term stability in solution and possessed excellent adsorption selectivity for Nd 3+ . The GO-TYA composite showed higher adsorption capacity for Nd 3+ , which was 8.80, 15.96, 20.03 and 20.49 times of the adsorption capacities for La 3+ , Yb 3+ , Sm 3+ and Eu 3+ , respectively. Regeneration of GO-TYA composite was carried out in acidic solutions, and its structural integrity maintained even after 10 cycles of adsorption-elution. This study provides a new strategy for the construction of acid-resistant GO-based composites for the efficient and selective recovery of rare earth elements from wastewater.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
ANALYTICAL LETTERS
·
2020
·
IF 1.467
Bing Bai,Ze Zhang,Xiaowei Zhao
Adsorption offers an efficient and eco-friendly method for the recovery of rare earth elements (REEs). However, it is not well known that most adsorbents are not eco-friendly. Rational design of next generation adsorbents should aim to enhance their green properties. In this work, sepiolite, Fe3O4 and itaconic acid were selected as the green raw materials. Poly(itaconic acid)/magnetite sepiolite composite (PIA/MSEP) was prepared using water as the solvent under mild reaction conditions and the entire process uses neither the bulk use of toxic organic solvents nor the addition of dangerous strong acid or alkali. The results indicate that PIA/MSEP has satisfactory maximum adsorption capacities of 178.57, 151.52 and 106.38 mg·g−1 for Er3+, Nd3+ and Ce3+, respectively, with excellent regeneration stability. The PIA/MSEP exhibits outstanding adsorption rates that provide above 90% capacity within 10 min for Er3+ and Nd3+. This versatile material is a potential candidate for applications in the removal of REEs.
研究领域:
环境科学
·
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
PROCEEDINGS OF THE COMBUSTION INSTITUTE
·
2020
·
IF 5.627
Zeyun Wu,Yiyang Zhang,Xiaofan Zhao,Hongyan Wang,Shuiqing Li
Yttrium aluminum oxide YAlO 3 is an attractive laser host material for lanthanide ions like Nd 3+ . In this paper, a dual liquid/vapor-fed flame synthesis (DLVF) system is developed for investigating the role of SiO 2 coating on flame-made YAlO 3 :Nd 3+ nanophosphors. The hexamethyldisiloxane (HDMSO) vapor is flexibly fed into the YAlO 3 :Nd 3+ flame spray flow at different positions and molar ratios . We find that the introduction of SiO 2 coating dramatically improves the crystallinity of YAlO 3 :Nd 3+ cores because of the heat-insulation effect and nearly doubles the fluorescence intensity . Through a timescale analysis, we demonstrate that the best timing for coating injection is when the small particles have already been formed but not heavily aggregated. An early injection could result in segregated SiO 2 particles and some impurities like Al 2 SiO 5 , while a delayed injection leads to the coating of SiO 2 on the entire aggregates instead of on individual particles. Experiments of different coating ratios show that the coating ratio 1:1 of Si:(Y+Nd) produces the best crystallinity and strongest fluorescence intensity. Further increase of the coating ratio does not show any improvements of the crystallinity , and may even causes the decrease of the relative fraction of Nd 3+ ions. Compared with YAG:Nd 3+ bulk materials (with a typical optimum doping concentration 1.1mol%) and uncoated YAlO 3 :Nd 3+ nanophosphors (with an optimum doping concentration 2 mol%), the SiO 2 coating promotes the optimum Nd 3+ doping concentration up to 3 mol%.
研究领域:
材料科学
·
无机化学
·
纳米技术
·
发光材料
·
激光增益介质
✓ 已验证
DOI
高影响因子
OPTICAL MATERIALS
·
2018
·
IF 2.32
Huiling Song,Qun Han,Xiaoyun Tang,Xueru Zhao,Kun Ren,Tiegen Liu
In this paper, Nd 3+ /Yb 3+ codoped SrWO 4 phosphors for temperature sensing are investigated. Firstly, the doping ratio of Nd 3+ and Yb 3+ was optimized. Then, under a 980 nm excitation, the temperature response of the near infrared (NIR) upconversion emission spectra in the temperature range of 313 K–453 K was characterized. The results show that the NIR emission peaks increase notably with the increase of temperature. With the fluorescence intensity ratio (FIR) technique, thermal sensing property of the optimized phosphor was investigated. A maximum thermal sensitivity of 0.02857 K −1 ( I 801 / I 869 ) at 453 K was achieved, which is higher than that of the other previously reported similar materials. The minimum temperature uncertainty is about 1 K at 453 K. The results reveal that SrWO 4 : Nd 3+ /Yb 3+ is a promising material for optical thermometry.
研究领域:
光学材料
·
传感器与执行器
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光子学
·
发光材料
·
温度传感
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DOI
高影响因子
MATERIALS SCIENCE FORUM
·
2019
·
IF 0
Ai Jia Wei,Wen Li,Li Hui Zhang,Zhen Fa Liu
Spinel powders of Nd-doped LiNi0.5NdxMn1.5−xO4 with different Nd3+ contents (x = 0, 0.01, and 0.02) have been synthesized by a solid-state ball milling method. The samples was characterized by XRD, SEM and EDS. XRD shows the doping of Nd3+ did not destroy the formation of spinel LNMO.The results show that LiNi0.5Nd0.01Mn1.49O4 sample exhibits a higher rate performance with specific discharge capacities of 134.8, 137.2, 136.5, 130.4, 123.8, 106.4, and 83.1 mAh g−1 at 0.2, 0.5, 1, 2, 3, 5, and 7 C (1 C = 140 mAh g−1), respectively. The results indicate that the Nd3+ doping could reduce the electrode polarization and enhance the rate capacities.
研究领域:
材料科学
·
电化学
·
储能
✓ 已验证
DOI
Advanced Optical Materials
·
2026
·
IF 7.2
Qingfeng Cai,Xinyang Zhang,Wei Wang,Fuyan Su,Zhenchuan Hu,Piaoyang Wu,Mei Ding,Hang Yang,Hua Zou,Yi Wei,Guogang Li
Thermal quenching remains a pivotal challenge that limits the further application of near-infrared luminescent materials. Herein, we report a zero thermal quenching emission based on La 3 SbO 7 host with highly symmetric site for Nd 3+ ions. Under the excitation of 808 nm laser, the integrated emission intensity of La 3 SbO 7 :0.01Nd 3+ phosphor maintained 101% and 96% of the initial intensity at 473 and 513 K, respectively. The calculated temperature-dependent luminescence decay lifetimes also maintain around 0.21 ms and show a trend of no decline as a function of temperature, demonstrating an extremely superior thermal stability. Besides, compared with Lu 3 SbO 7 structure and other activator ions, it can be found that thermal stability is closely connected with local structure characteristics and the process of energy transfer. Finally, by employing a 808 nm chip, the prepared near-infrared phosphor-converted light-emitting diode presents great potential for night vision. This work provides a feasible idea for accelerating the discovery of NIR emitting oxide luminescent materials with excellent thermal stability.
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DOI
高影响因子
Nanoscale
·
2015
·Vol. 7
·期 42
·17861-17870
·
IF 7.394
Zhuo Wang,Peng Zhang,Qinghai Yuan,Xia Xu,Pengpeng Lei,Xiuling Liu,Yue Su,Lile Dong,Jing Feng,Hongjie Zhang
In this paper, intense up- and down-conversion luminescence were successfully achieved in well designed and synthesized core–shell structured NaLuF4:Gd/Yb/Er@NaLuF4:Yb@NaLuF4:Nd/Yb@NaLuF4 nanoparticles (NPs) simultaneously under 808 nm continuous-wave laser excitation. The morphologies, luminescent properties and energy transfer mechanism of the nanoparticles were studied in detail. By employing this design, multimodal imaging performance including near-infrared down-conversion optical imaging and X-ray computed tomography (CT) imaging were realized in one kind of NPs. Furthermore, the 808 nm excited optical temperature sensing property of the synthesized NPs was realized in a wide temperature range by monitoring the intensities of up- and down-conversion luminescence. This study provides a novel platform based on lanthanide fluoride nanoparticles for multifunctional imaging and temperature sensing in one system.
研究领域:
生物医学工程
·
纳米医学
·
光学成像
✓ 已验证
产品关联
DOI
PubMed
高影响因子
MOLECULES
·
2023
·Vol. 28
·期 7
·3175
·
IF 4.6
Xiaolei Song,Congzhu Xu,Wendong Yao,Jieyun Wen,Qufu Wei,Yonggui Li,Xinqun Feng
Magnetic protective fabrics with fine wearability and great protective properties are highly desirable for aerospace, national defense, and wearable protective applications. The study of the controllable preparation method of Nd3+doped in Fe3O4nanoparticles with supposed magnetic properties remains a challenge. The characterization of the microstructure, elemental composition, and magnetic properties of NdFe2O4nanoparticles was verified. Then, the surface of NdFe2O4was treated with glyceric acid to provide sufficient –OH. Subsequently, the connection of the nanoparticle by the succinimide group was studied and then grafted onto cotton fabrics as its bridging effect. The optimal loading rate of the functional fabrics with nanoparticles of an average size of 230 nm was 1.37% after a 25% alkali pretreatment. The color fatness to rubbing results showed better stability after washing and drying. The corresponding hysteresis loop indicated that the functional fabrics exhibited typical magnetism behavior with a closed “S” shape and a magnetic saturation value of 17.61 emu.g−1with a particle size of 230 nm. However, the magnetic saturation value of the cotton fabric of 90 nm was just 4.89 emu.g−1, exhibiting controllable preparation for the aimed electromagnetic properties and great potential in radiation protective fields. The electrochemical properties of the functional fabrics exhibited extremely weak electrical conductivity caused by the movement of the magnetic dipole derived from the NdFe2O4nanoparticles.Keywords:NdFe2O4nanoparticles;grafting;cotton fabric;magnetic protective
研究领域:
材料科学
·
纺织工程
·
电磁学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CERAMICS INTERNATIONAL
·
2023
·
IF 5.2
Zhichao Liu,Xiuxia Yang,Xue Yu,Jianqiang Xiao,Peng Zhang,Daiyuan Liu,Jian Zhang,Xuhui Xu,Jianbei Qiu
The differences in the luminescent performance of phosphors determine their application in diverse occasions. However, the development of Eu 2+ ion doped phosphors materials with high optical properties is not satisfactory due to the harsh synthesis conditions. Herein, a series of Sr 4 Al 14 O 25 : Eu 2+ , Nd 3+ , Tm 3+ are constructed by high temperature solid reaction without applying reducing gas and protective gas. The charge mismatch caused by the unequal substitution promotes the spontaneous reduction of Eu 3+ ions to Eu 2+ . Nd 3+ and Tm 3+ are co-doped into Sr 4 Al 14 O 25 : Eu 2+ to regulate the trap structure, and photoluminescence , long persistent luminescence, photo-stimulated luminescence and mechanoluminescence of Eu 2+ ions are simultaneously achieved in Sr 4 Al 14 O 25 : Eu 2+ , Nd 3+ , Tm 3+ . The relationship between trap and optical performance is explored in detail, and the temperature effect during mechanoluminescence is demonstrated for the first time. This research provides a new idea for the rapid synthesis of highly optical performance Eu 2+ -doped phosphors in air.
研究领域:
材料科学
·
光学工程
✓ 已验证
产品关联
DOI
高影响因子
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