JOURNAL OF ALLOYS AND COMPOUNDS
·
2020
·
IF 4.65
MingXing Li,Fangtian You,Chunjun Liang,Zhiqun He
A new temperature measurement strategy based on the luminescence of Ce 3+ and Tb 3+ doped YBO 3 was proposed. Dual emissions of Ce 3+ and Tb 3+ have different thermal dependencies, which can be used to overcome those limitations such as low signal discriminability and large measurement error. A series of Ce 3+ and/or Tb 3+ doped YBO 3 samples were synthesized by hydrothermal method , and the influences of temperature on the photoluminescence (PL) intensity of Ce 3+ 5d-4f transition and Tb 3+ 4f-4f transition were discussed in detail. Compared with the single emission of YBO 3 :1.0%Ce 3+ , fluorescence intensity ratio (FIR) variation of Ce 3+ blue emission and Tb 3+ green emission in YBO 3 :1.0%Ce 3+ , 1.0%Tb 3+ has been studied as a function of temperature in the range of 288–328 K. The absolute sensitivity of YBO 3 :1.0%Ce 3+ , 1.0%Tb 3+ was 1.18 %K −1 , higher than that of YBO 3 : 1.0%Ce 3+ (0.70 %K −1 ). The results suggest that YBO 3 :Ce 3+ , Tb 3+ is a good candidate as optical thermometry in the physiological range.
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Shenghui Zheng,Yafang Chen,Kaihui Lin,Liting Qiu,Zhixia Zheng,Yiqing Cao,Yuda Lin
X-ray Stimulated ultraviolet (UV) persistent luminescence (PersL) materials are considered the optimal choice for optical imaging in X-ray imaging encryption applications due to their excitation source and emission spectra being invisible to the human eyes. However, the efficiency of X-ray excited UV PersL materials are currently limited, particularly when compared to those excited by UV. There is a need to develop UV PersL materials that can be efficiently excited by X-ray. Here we present a novel UV PersL material YBO 3 :Bi 3+ ,Li + , which exhibits high efficiency after X-ray excitation and holds promise for applications in X-ray image encryption. Through optimization of Bi 3+ concentration and addition of Li + , YBO 3 :Bi 3+ ,Li + demonstrates the capability to emit UV PersL at 326 nm after X-ray excitation, lasting for over 40 h. In addition, the experimental characterization also revealed that YBO 3 :Bi 3+ ,Li + have excellent photo-stimulated luminescence effects on white light, red light and near-infrared light sources. Furthermore, the proposed dual-mode detection capabilities demonstrate a high level of confidentiality in X-ray encryption imaging applications by leveraging excellent UV PersL performances and utilizing short time X-ray excitation.
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry C
·
2023
·Vol. 11
·期 13
·4492-4499
·
IF 6.4
Xulong Lv,Xihui Shan,Yi Zhang,Yanjie Liang
Photostimulated luminescence (PSL) materials have attracted considerable attention in many important fields, varying from radiation dosimetry and biomedical imaging to security encryption and optical data storage. Nevertheless, monochromatic light illumination is usually used as the stimulus source to realize the absolute separation between the PSL signal and the excitation light. Furthermore, a dark environment is considered necessary to get rid of the interference from polychromatic ambient light. Herein, we report a glow-in-the-daylight material, YBO3:Pr3+, which can emit intense and long-lasting ultraviolet-C (UVC) persistent luminescence in a bright indoor lighting or outdoor sunlight environment after ceasing X-ray excitation. We note that although the YBO3:Pr3+ phosphor shows very weak UVC afterglow in darkness, remarkable enhancement of UVC persistent luminescence can be observed in a bright ambient light environment. The UVC persistent luminescence peaking at 274 nm can last for more than 24 h under the illumination of 900 lux white LED light, and the UVC luminescence signal is free from the interference of the ambient light. This enhancement of UVC persistent luminescence is assigned to the continuous and efficient photostimulation of polychromatic ambient light, which has been confirmed by comprehensive spectroscopic investigations. The appealing glow-in-the-daylight phenomenon from the YBO3:Pr3+ phosphor will not only lay the foundation to develop more UVC persistent phosphors suitable for working in a bright environment, it will also promote the widespread use of these storage phosphors across a broad range of applications such as microbial inactivation and optical tagging.
研究领域:
材料科学
·
光学工程
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
Royal Society Open Science
·
2018
·Vol. 5
·期 4
·
IF 2.504
Zhenhe Xu,He Yu,Feixue Ai,Guiyan Zhao,Yanfeng Bi,Liangliang Huang,Fu Ding,Yaguang Sun,Yu Gao
Hollow lanthanide-doped compounds are some of the most popular materials for high-performance luminescent devices. However, it is challenging to find an approach that can fabricate large-scale and well-crystallized lanthanide-doped hollow structures and that is facile, efficient and of low cost. In this study, YBO3: Eu3+/Tb3+ hollow microspheres were fabricated by using a novel multi-step transformation synthetic route for the first time with polystyrene spheres as the template, followed by the combination of a facile homogeneous precipitation method, an ion-exchange process and a calcination process. The results show that the as-obtained YBO3: Eu3+/Tb3+ hollow spheres have a uniform morphology with an average diameter of 1.65 µm and shell thickness of about 160 nm. When used as luminescent materials, the emission colours of YBO3: Eu3+/Tb3+ samples can be tuned from red, through orange, yellow and green-yellow, to green by simply adjusting the relative doping concentrations of the activator ions under the excitation of ultraviolet light, which might have potential applications in fields such as light display systems and optoelectronic devices.
研究领域:
材料科学
·
纳米技术
·
光电子学
·
发光材料
·
无机化学
✓ 已验证
DOI
高影响因子
MRS Advances
·
2020
·Vol. 5
·期 31
·1661-1670
·
IF 0
Xing Xianj,Li Shan,Song Yuq,Ge Yingz,Zhang Xuef,Jiang Wen,Zhang Xianwen
YBO 3 :Eu 3+ crystals with flower-like hierarchitecture are readily synthesized through a folic acid assisted hydrothermal process using polyborate precursors in the aqueous solution. It was found that the pH value, borate/yittrium ratio and the mass of folic acid take effects on the morphology and photoluminescence emission intensity of YBO 3 :Eu 3+ crystals. The product with the small flower-like hierarchitecture was obtained under the conditions of pH value at 9, borate/yittrium ratio at 2 and the mass of folic acid at 0.44 g, showing the strongest photoluminescence intensity. The growth process of the YBO 3 :Eu 3+ flowers and microflowers was invesitgated based on the time-dependent experiments, which showed that the growth mechanism of the flower-like hierarchitecture follows an in situ growth rather than self-assembly process as reported previously. Such a hydrothermal route using folic acid as a capping agent may provide a green and effective method for fabricating useful and complex 3D architectures of LEDs phosphors.
研究领域:
材料科学
·
光学
✓ 已验证
DOI
JOURNAL OF APPLIED PHYSICS
·
2014
·Vol. 115
·期 4
·
IF 2.185
Wang Pei,He Duanwei,Xu Chao,Ren Xiangting,Lei Li,Wang Shanmin,Peng Fang,Yan Xiaozhi,Liu Dongqiong,Wang Qiming,Xiong Lun,Liu Jing
Angle-dispersive synchrotron X-ray diffraction measurements were performed on vaterite-type YBO 3 /Eu 3+ , GdBO 3 , and EuBO 3 , respectively, up to 41 GPa at room temperature using a diamond-anvil cell. Pressure-induced amorphization was observed in hexagonal GdBO 3 with a significant compression along the c -axis. Compared to the ions of the distorted GdBO 3 phase, its anions may lose their long-range order prior to the cations at high pressures. Based on the experimental pressure-volume data, the obtained bulk moduli of YBO 3 /Eu 3+ and GdBO 3 are 329 and 321 GPa, respectively, which are more than 90% larger than that of EuBO 3 (167 GPa) and are presumably attributed to Gd 3+ and Y 3+ with a high density of d valence electrons.
研究领域:
材料科学
·
物理学
✓ 已验证
产品关联
DOI
高影响因子
Nanomaterials
·
2026
·Vol. 16
·期 13
·811
·
IF 4.8
Linhui Gao,Yifu Liu,Hongliang Zhu,Yuan Wang,Qiuying Wang,Xinggang Shan
YBO 3 :Eu 3+ phosphors are regarded as strong candidates for high-performance luminescent materials owing to their excellent luminescence efficiency. In this study, novel YBO 3 :Eu 3+ porous/hollow microspheres were synthesized via a simple, continuous ultrasonic spray pyrolysis (USP) process using different organic additives. XRD analysis confirms that all samples crystallize in a pure hexagonal YBO 3 phase, indicating that the additives do not affect phase formation. Electron microscopy reveals a clear morphological evolution from solid to porous and hollow microspheres, with tunable shell thickness and cavity size. Compared with solid microspheres, the obtained hollow microspheres significantly reduce the consumption of rare earth materials with minimal influence on luminescence properties. The results suggest that hollow microspheres are promising substitutes for solid microspheres in the field of rare earth phosphors and the ultrasonic spray pyrolysis (USP) approach shows great potential in large-scale synthesis of morphology-controllable microspheres.
✓ 已验证
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）