CERAMICS INTERNATIONAL
·
2026
·
IF 6
Rui Zhou,Xiaofei Wu,Guihua Li,Bo Li,Lin Li,Huan Li,Yusong Du,Jingtai Zhao,Jiang Wang
To address the issue of single sensing function in current Mechanoluminescence (ML) material, a ML material Y 3 GaO 6 : Eu 3+ /Tb 3+ with temperature and stress dual-function sensing characteristics was prepared by high-temperature solid-state method. The crystal phase, afterglow and luminescence properties of the materials were studied by a series of characterization techniques. Optical studies reveal that color-tunable emission from red to yellow and green can be achieved by adjusting the doping concentrations of Eu 3+ and Tb 3+ . Benefiting from the intrinsic differences in the temperature responses of Tb 3+ and Eu 3+ ions, a ratiometric temperature-sensing model based on the intensity ratio of their characteristic emission peaks was established. Meanwhile, the material exhibits ML under both friction and tensile stimuli, with the intensity showing a linear relationship with the applied stress. By analyzing the luminescence response law under temperature and stress conditions, this study realizes two functions of temperature sensing and stress sensing, which provides a new strategy for the design of advanced mechanical luminescent materials and shows broad application prospects in the fields of structural health monitoring and intelligent bionic skin.
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高影响因子
ACS Applied Materials & Interfaces
·
2026
·
IF 7.8
Chuanya Jiang,Bin Fang,Zijian You,Xiang Zhang,Yanbin Xu,Yuming Cui,Zhenglong Yang,Zhiqiang Lv,Chao Yuan
Sodium vanadium phosphate [Na3V2(PO4)3] stands out as an appealing cathode material for next-generation sodium-ion batteries owing to beneficial properties, such as high operating voltage, fast ion diffusion, and robust structural integrity. Nonetheless, its commercialization is challenged by an inherently poor electronic conductivity. Herein, a europium3+ (Eu3+) doping strategy was employed to synthesize a Na3V1.95Eu0.05(PO4)3@C composite (Eu0.05-NVP@C), aiming to enhance its high-rate capability and cycling durability. Based on electrochemical kinetic studies and theoretical computations, the introduction of Eu3+ into Eu0.05-NVP@C effectively reduces the band gap and activation energy for Na+ migration, which synergistically promotes faster charge transfers. Moreover, the smaller integrated crystal orbital Hamilton population values for the V–O and Eu–O bonds indicate enhanced lattice cohesion. Consequently, the fabricated Eu0.05-NVP@C cathode exhibits a high reversible capacity of 97.63 mAh g–1 at 10C and achieves 93.60% capacity retention after 2000 cycles at 5C. In situ X-ray diffraction analysis further reveals the highly reversible biphasic transition reaction during cycling. This work not only validates Eu3+ doping as an effective approach for optimizing NASICON-type cathodes but also offers strategic guidance for the development of next-generation Na3V2(PO4)3-based electrodes with a superior rate performance and extended cycle life.
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PubMed
高影响因子
JOURNAL OF LUMINESCENCE
·
2026
·
IF 3.8
Feiyan Xie,Junqiang Gu,Shengqian Wang,Dekang Xu,Qiancheng Xiong,Run Zhu,Jiayi Gu,Jinyu Yang
The optical thermometry method based on fluorescence intensity ratio (FIR) technology has emerged as a research hotspot in the field of temperature sensing in recent years due to its prominent advantages such as high sensitivity and operational convenience. In this work, a series of novel NaGd 2 Ga 2 InTi 2 O 12 : x Bi 3+ , y Eu 3+ (abbreviated as NGGIT: x Bi 3+ , y Eu 3+ ) optical thermometric phosphors were developed, and their crystal structures, optical properties, and temperature-sensing characteristics were systematically and in-depth characterized and analyzed. Under excitation at 310 nm, Bi 3+ emitted a characteristic broadband green luminescence centered at 500 nm with the optimal doping concentration determined to be x = 1.5%, and the introduction of Eu 3+ into NGGIT:Bi 3+ enabled the construction of an efficient Bi 3+ -Eu 3+ energy transfer channel. Crucially, Bi 3+ and Eu 3+ exhibited significantly differentiated thermal quenching behaviors during temperature variation, laying an excellent foundation for FIR thermometry. The thermometric performance of NGGIT:1.5%Bi 3+ ,0.25%Eu 3+ phosphor was evaluated using FIR technology, and the results showed that its maximum absolute sensitivity ( S a ) and relative sensitivity ( S r ) reached 2.61% K −1 and 2.60% K −1 , respectively, accompanied by distinct luminescent color transition with temperature changes. This study demonstrated NGGIT:Bi 3+ ,Eu 3+ phosphors possessed excellent temperature-sensing performance and held broad application prospects in FIR-based non-contact thermometry.
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高影响因子
Microstructures
·
2026
·Vol. 6
·期 4
·N
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IF 8.5
Guangzhi Dong,Xiaorong Yang,Chaoke Lv,Rulang Bai,Huanhuan Su,Bilin Zhang,Xiaowang Liu,Tao Wang,Wanqi Jie
Scintillators, which are critical for X-ray detection, are widely used in medical imaging, radiation detection, and high-energy physics. In this study, Eu3+-doped Gd3Al3Ga2O12 (GAGG: xEu3+) transparent ceramic scintillators were fabricated using a solid-state reaction method combined with pressureless atmosphere sintering. The effect of Eu3+ concentration on the optical quality, scintillation performance, and thermal stability of the ceramics was systematically investigated, and their X-ray imaging performance was preliminarily evaluated. The as-prepared ceramics exhibited high optical transmittance and a uniform grain-size distribution. Photoluminescence (PL) spectra revealed characteristic Eu3+ emission peaks at approximately 590 nm, corresponding to the dominant 5D0 → 7F1 magnetic dipole transition. The optimal Eu3+ concentration was determined to be 2 at%, and the concentration quenching behavior was predominantly governed by electric dipole-dipole interactions. Furthermore, the GAGG: xEu3+ ceramics demonstrated satisfactory thermal stability and radioluminescence performance, with the radioluminescence intensity reaching its maximum at a doping concentration of 3 at%. The discrepancy between the optimal concentrations obtained from PL and radioluminescence measurements is attributed to the different excitation mechanisms involved. These results indicate that GAGG: xEu3+ transparent ceramics are promising candidates for X-ray detection and imaging applications.
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高影响因子
JOURNAL OF LUMINESCENCE
·
2025
·
IF 3.6
Weijie Yuan,Dongwen Cai,Shuai Ma,Huaiyong Li,Quansheng Wu,Xufeng Zhou,Wanying Geng
This article systematically investigates the preparation, structure, and luminescent properties of a novel Eu 3+ -based germanate phosphor: NaInGe 2 O 6 (NIGO): Eu 3+ . NIGO: Eu 3+ exhibits strong absorption in the near ultraviolet (NUV) and blue region, which enables it to be effectively excited by the blue LED chip. Under 465 nm excitation, NIGO: Eu 3+ exhibits a red emission peak at 610 nm, reaching 82.60 % and 68.6 % of the emission intensity of Y 3 Al 5 O 12 (YAG): Ce 3+ and K 2 TiF 6 :Mn 4+ . NIGO: Eu 3+ also has good thermal stability, retaining 76.23 % even at 150 °C. Furthermore, combining NIGO: Eu 3+ with commercial YAG: Ce 3+ phosphors significantly enhances the luminescent performance of blue-chip-excited white light-emitting diodes (WLEDs), including improvements in color rendering index (CRI) and correlated color temperature (CCT). This work indicates that NIGO: Eu 3+ phosphors possess promising potential for WLED applications.
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高影响因子
OPTICAL MATERIALS
·
2025
·
IF 4.2
Yan Zhao,Zhonghui Li,Jiaxu Wang,Xingsheng Zhao,Changli Liu,Jifeng Ban,Xinlong Zhang,Hengwei Zhou,Xiaokang Jiang
CaLaGaO 4 :Eu 3+ and Li + -doped CaLaGaO 4 :30 %Eu 3+ series phosphors were synthesized via high-temperature solid-state reactions. The results show that these phosphors can be efficiently excited by near-ultraviolet light at 392 nm and emit intense red light at 609 nm. The red emission at 609 nm corresponds to the hypersensitive electric dipole transition of Eu 3+ ( 5 D 0 → 7 F 2 ). Upon reaching 30 % Eu 3+ doping concentration, a distinct concentration quenching phenomenon emerges. Subsequent Li + co-doping investigation demonstrates that incorporating 0.5 % Li + induces remarkable luminescence enhancement: (1) The room-temperature fluorescence intensity exhibits 1.56-fold augmentation compared to Li + -free counterparts; (2) The absolute quantum yield (QY) increases from 11.3 % to 21.6 %, representing 91.2 % relative improvement; (3) Thermal stability characterization reveals 81.9 % intensity retention at 498 K (vs. 75.0 % in undoped system), corresponding to 9.2 % relative enhancement in thermal endurance. These findings suggest that the introduction of Li + can effectively sensitize and enhance the fluorescence properties of the host matrix, offering a promising strategy for improving the performance of fluorescent materials.
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高影响因子
OPTICAL MATERIALS
·
2024
·
IF 3.8
Junhe Zhou,Ziyan Zhang,Zeyu Wang,Hongshun Sun,Yuan Cai,Jintao Pan,Ning Wang,Zicong Yang,Yongjia Hu,Yujia Ji,Yang Wei,Lingling Ma,Yanqing Lu
High-performing lanthanide (Ln 3+ )-based luminescence thermometry is gaining widespread attention for its remote temperature reading, broad temperature range, high sensitivity, resolution, and stability in various applications. However, facile strategies for constructing multi-mode luminescence thermometry based on a simple material system are still challenging. Herein, we propose a dual-mode single-band ratiometric (SBR) luminescence thermometry based on the tunable Eu 3+ luminescence in La 2 (WO 4 ) 3 (LaWO). Eu 3+ -doped La 2 (WO 4 ) 3 (LaWO:Eu) phosphor was synthesized by the high-temperature solid-state method. The rigid lattice of LaWO allows high content of Eu 3+ doping without concentration quenching of luminescence, which endows high fluorescence intensity . In addition, in-situ and dynamic regulations of thermal-responsive luminescent properties of Eu 3+ are systematically investigated, which enables the construction of SBR luminescence thermometry. At temperatures from 300 to 500 K, the maximum absolute and relative sensitivities reach 0.032 K -1 and 0.85% K −1 , respectively. The high sensitivity and stability indicate that our results provide a facile and effective strategy for developing multi-mode luminescence thermometry and hold potential applications in various fields.
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高影响因子
APPLIED RADIATION AND ISOTOPES
·
2015
·
IF 1.231
Peican Chen,Fuwang Mo,Anxiang Guan,Rongfang Wang,Guofang Wang,Siyu Xia,Liya Zhou
Bi 3+ /Tb 3+ , Eu 3+ co-doped Li 6 Gd(BO 3 ) 3 (LGBO) phosphors were synthesized via a traditional solid-state method. Phase purity was investigated using X-ray diffraction, absorption strength of the phosphors were investigated by UV–vis absorption spectra , and the photoluminescence properties of the phosphors were studied systematically. Results showed that the emission intensity of Bi 3+ , Eu 3+ co-doped LBOG was 2.76 times higher than that of Eu 3+ -doped LGBO irradiated at 275 nm, thereby implying the possibility of energy transfer from Bi 3+ to Eu 3+ . The excitation spectra of Tb 3+ , Eu 3+ co-doped LGBO phosphors are broader in comparison with single-doped phosphors and show tunable colors from green to yellow to orange-red when the ratio of Tb 3+ to Eu 3+ is adjusted These results demonstrate that LGBO:Tb 3+ , Eu 3+ phosphors have potential use in light-emitting diodes.
研究领域:
材料科学
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光学材料
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光子学
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固态化学
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高影响因子
OPTICAL MATERIALS
·
2020
·
IF 2.779
Hua Yu,Fengping Ruan,Leifeng Chen,Degang Deng
Ca 9 Zn 1.5 (PO 4 ) 7 : Eu 2+ /Eu 3+ phosphors had been synthesized via conventional high temperature solid-state reaction. Based on the different thermal quenching characteristics between 4f-5d transition of Eu 2+ ions and 4f-4f transition of Eu 3+ ions, the fluorescence intensity ratio (FIR) of Eu 3+ to Eu 2+ exhibits temperature dependence at the temperature from 293 to 473 K. The maximum absolute and relative temperature sensitivity of Ca 9 Zn 1.5 (PO 4 ) 7 : Eu phosphor can reach up to 0.0034 K −1 and 1.4% K −1 at 453 K, respectively, when used as thermometric material. These results indicated that our study opens up an effective approach for developing other high-performance self-calibrated optical thermometers.
研究领域:
材料科学
·
光学传感器
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发光材料
·
测温技术
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高影响因子
Journal of Physical Chemistry C
·
2023
·
IF 3.7
Bo Li,Mengxin Liu,Xinan Shi,Qiulin Cao,Zhan Ni,Chengzeng Lu,Daocheng Pan
In the past, an Eu3+-doped YVO4 bulk phosphor with a photoluminescence quantum yield (PLQY) of 70% was prepared by a high-temperature solid-state reaction method at 1000 °C for 5 h. In this work, ultrasmall Eu3+-doped YVO4 nanocrystals with a PLQY of 62% are rapidly synthesized by a facile ligand-assisted coprecipitation method at room temperature. The reaction is conducted under ambient conditions and is completed in 1 min. Water and ethanol are used as the solvents, while short-chain butyric acid and butylamine serve as the capping agents. As-prepared nanocrystals are characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). The results show that Eu3+-doped YVO4 nanocrystals are well dispersed with a particle size of 3.6 nm. The luminescent nanocrystals prepared in this study have three advantages: room temperature preparation, high PLQY, and ultrasmall particle size. These results reveal that Eu3+-doped YVO4 luminescent nanocrystals could have high potential in lighting, display, anti-counterfeiting, and bioimaging.
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高影响因子
JOURNAL OF LUMINESCENCE
·
2023
·
IF 3.6
Renping Cao,Caiping Chen,Fangrui Cheng,Ting Chen,Bang Lan,Lan Li,Ru Liu,Jing Wang
In this work, we synthesize Ca 3 Bi(PO 4 ) 3 :Dy 3+ , Ca 3 Bi(PO 4 ) 3 :Eu 3+ , and Ca 3 Bi(PO 4 ) 3 :Eu 3+ , Dy 3+ . The crystal structure, phase purity, and the luminescence properties of samples are investigated, respectively. Ca 3 Bi(PO 4 ) 3 :Dy 3+ under excitation at 350 nm shows yellow emission because of the 4 F 9/2 → 6 H 15/2 , 6 H 13/2 , 6 H 11/2 , and 6 H 9/2 transitions of Dy 3+ . Ca 3 Bi(PO 4 ) 3 :Eu 3+ with excitation at 394 nm emits red-orange emission due to the 5 D 0 → 7 F 1 , 7 F 2 , 7 F 3 , and 7 F 4 transitions of Eu 3+ ion. Ca 3 Bi(PO 4 ) 3 :Dy 3+ , Eu 3+ with excitation at 394 nm mainly shows the emission of Eu 3+ , however, that with excitation at 350 nm mainly derive from Dy 3+ ion. We investigate the effects of the ratio between Dy 3+ and Eu 3+ in Ca 3 Bi(PO 4 ) 3 :Eu 3+ , Dy 3+ on the luminescence properties. The energy transfer from Dy 3+ to Eu 3+ in Ca 3 Bi(PO 4 ) 3 :Eu 3+ , Dy 3+ is found. We analyze the luminous mechanism of samples by energy level diagrams of Dy 3+ and Eu 3+ ions. The results are helpful for the research of other Dy 3+ and Eu 3+ co-doped luminescence materials.
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高影响因子
JOURNAL OF RARE EARTHS
·
2022
·
IF 4.632
Fadong Li,Ruirui Cui,Gaofeng Yuan,Xin Zhang,Min Zhang,Chaoyong Deng
Herein, double-perovskite Ba 2 LaTaO 6 Eu-doped orange-red phosphors were successfully synthesized using a high-temperature solid-phase method. The phosphor phase purity was investigated using X-ray diffraction and microscopic morphology analyses. Their luminescence properties were investigated using absorption, emission, excitation, and temperature-dependent spectra. The transition mechanism mainly involves a magnetic–dipole transition with an energy transfer mode featuring multipole–multipole interactions, and concentration quenching is achieved via dipole–dipole interactions. In addition, the intensity of the temperature-dependent spectrum increases abnormally between 298 and 373 K, with the luminous intensity at 373 K increasing to 110% of that observed at room temperature . This phenomenon can be attributed to lattice defects in Ba 2 LaTaO 6 :Eu 3+ , and the phosphor luminous intensity at 473 K remains at 80.62% of that at room temperature. In addition, white-light-emitting diode devices based on this novel Ba 2 LaTaO 6 :0.35Eu 3+ phosphor were fabricated to evaluate the potential applications of the as-prepared phosphor.
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高影响因子
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