JOURNAL OF LUMINESCENCE
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2021
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IF 3.599
Juping Ma,Yan Sun,Fei Yu,Tianfeng Xue,Lili Hu
Tb 3+ ions doped optical materials have emerged as gain media for green fiber lasers. Dy 3+ ions were proposed as a sensitizer of Tb 3+ ions in glasses to increase the excitation efficiency, yet a systematic understanding of the impact of Dy 3+ doping on spectroscopic and physiochemical properties of glasses remains lacking. Here, using Tb 3+ /Dy 3+ doped fluoride glass as a model system, we reveal that Dy 3+ doping not only enhances Tb 3+ emission intensity, but also increases the thermal stability of fluoride glasses. Detailed spectroscopic characterizations indicate that co-doping Dy 3+ ions boosts visible luminescence intensity of Tb 3+ ions in fluoride glasses due to sensitization of Tb 3+ by Dy 3+ ions. Importantly, we deeply research the energy transfer process , ascertain several important factors affecting energy transfer efficiency and propose optimal doping concentrations of Tb 3+ and Dy 3+ ions for visible emission. We envisage that our finding provides a new perspective for the synthesis of Tb 3+ -doped fluoride glasses with enhanced thermal stability, and may be extended for the fabrication of Tb 3+ -activated optical fibers .
研究领域:
光学材料
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无机非金属材料
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光子学
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稀土掺杂玻璃
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光纤激光器
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DOI
高影响因子
OPTICAL MATERIALS
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2022
·
IF 3.754
Juping Ma,Yan Jiao,Chongyun Shao,Yan Sun,Yiguang Jiang,Fei Yu,Lili Hu
In this study, we explore the photodarkening mechanisms of Tb 3+ -activated silica , phosphate, fluorophosphate, and fluoride glasses . The glasses were prepared by either conventional melting or sol-gel combined with high temperature sintering . The absorption, emission spectra , lifetime, and electron paramagnetic resonance (EPR) spectra of Tb 3+ -activated host glasses are systematically characterized before and after X-ray irradiation. The results show that the formation of Tb 4+ ions and the oxygen-related hole defects are two key factors which led to the photodarkening in visible region of above glasses after X-ray irradiation. Evaluating from the change of absorption, emission intensity and lifetime at 540 nm, fluoride glass demonstrated a superior photodarkening resistance among four kinds of glasses. It is a preferred host material for lasing operation at visible wavelengths. Our findings offer insight into the photodarkening mechanism of different Tb 3+ -activated glasses which find applications in fiber lasers at visible wavelengths.
研究领域:
光子学
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材料科学
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光学材料
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玻璃科学
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激光物理
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固态光谱学
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DOI
高影响因子
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
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2013
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IF 2.416
Bing Yan,Min Guo
Novel organic/inorganic/polymeric hybrid microspheres are constructed with rare earth complexes into polymer matrix through covalent bonds. Functional covalent polymer linkages (abbreviated as PAAR(MR)-M1(M2, M3)) are achieved from the functionalization of three 4-substituted aromatic carboxylic acid derivatives (4-aminobenzoic acid (M1), 4-mercapto benzoic acid (M2), 4-hydroxybenzoic acid (M3)) with two polymer resins ( para -alkoxy-benzyl alcohol resin (PAAR) or Merrifield resin (MR)), which are through nucleophilic substitution reaction between amino (mercapto and hydroxyl) groups of M1 (M2,M3) and methyl chloride groups of PAAR (MR). Furthermore, ternary rare earth polymeric hybrid microsphere (abbreviated as PAAR(MR)-M1-3-RE-Phen) are constructed through coordination bonds with covalent polymer linkages and 1,10-phenanthroline (Phen) as ligands. The physical characterization and particularly the photoluminescence property of them are studied in detail, which present the regular microsphere morphology and characteristic photoluminescence.
研究领域:
材料科学
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化学
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DOI
高影响因子
LUMINESCENCE
·
2015
·Vol. 31
·期 2
·388-393
·
IF 1.518
Renping Cao,Kangbin Chen,Shenhua Jiang,Zhiyang Luo,Xiaoguang Yu,Pan Liu
A series of SrMoO 4 :Sm 3+ ,Tb 3+ ,Na + phosphors was synthesized using a high-temperature solid-state reaction method in air. On excitation at 290 nm, SrMoO 4 :Sm 3+ ,Tb 3+ phosphor emitted light that varied systematically from green to reddish-orange on changing the Sm 3+ and Tb 3+ ion concentrations. The emission intensities of SrMoO 4 :Sm 3+ and SrMoO 4 :Sm 3+ ,Tb 3+ phosphors were increased two to four times due to charge compensation when Na + was added as a charge compensator. The luminescence mechanism and energy transfer could be explained using energy-level diagrams of the MoO 4 2– group, Sm 3+ and Tb 3+ ions. SrMoO 4 :Sm 3+ ,Tb 3+ ,Na + could be used as reddish-orange phosphor in white light-emitting diodes (LEDs) based on an ~ 405 nm near-UV LED chip. This research is helpful in adjusting and improving the luminescence properties of other phosphors. Copyright © 2015 John Wiley & Sons, Ltd.
研究领域:
材料科学
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光学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
MATERIALS RESEARCH BULLETIN
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2020
·
IF 4.019
Yingxuan Zou,Xiao Min,Zongjian Liu,Lixin Yu,Bingfa Liu
The Ce 3+ -Tb 3+ doped CaSi 2 O 2 N 2 phosphors are successfully obtained via conventional solid-state reaction at normal pressure. Broad absorption bands from Ce 3+ are clearly observed in the excitation spectra of CaSi 2 O 2 N 2 :Tb 3+ , Ce 3+ . The emission spectra present a combination of Tb 3+ and Ce 3+ emission bands, and the emission intensity of Ce 3+ is decreased along with the enhancement of the emission intensity of Tb 3+ . The energy transfer from Ce 3+ to Tb 3+ in the CaSi 2 O 2 N 2 host is confirmed to be resonant type via a dipole–dipole interaction mechanism. It is also found that the luminescence intensity of the Tb 3+ -Ce 3+ doped CaSi 2 O 2 N 2 phosphors prepared in N 2 /H 2 atmosphere is stronger than that prepared in pure N 2 .
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 LUMINESCENCE
·
2022
·
IF 4.171
ZhuoXing Wen,LianJie Li,WenJun Huang,SunYueZi Chen,Lei Lei,Tao Pang,Hai Guo
Here, we successfully prepared Tb 3+ -activated borogermanate glass by the traditional melt-quenching method. The optical and scintillating properties were investigated by using photoluminescence , transmission spectra, luminescence decay curves and X-ray excited luminescence. High content of Gd 2 O 3 was added into borogermanate glass to improve the density of glass (about 5.52 g/cm 3 ), and thus to enhance the radiation stopping power. Al powder was introduced into the composition as reducing agent. Due to incorporation of Al powder, the internal quantum efficiency of glass increases from 18.8% to 56.3%. Meanwhile, the integrated intensity of X-ray excited luminescence of glass promotes from 29.8% to 46.6% compared to Bi 4 Ge 3 O 12 scintillating crystal. All above results declare that Al powder as reducing agent can strengthen the optical and scintillating properties of Tb 3+ -activated borogermanate glass.
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2022
·
IF 5.518
Qingling Zeng,Wenxiang He,Fangfei Luan,Dongcai Guo
A novel BaCeF 5 : Tb 3+ , Eu 3+ color-tunable phosphor was synthesized using a co-precipitation-hydrothermal method. The photoluminescence (PL) spectra revealed that BaCeF 5 has its own fluorescence effect as blue emission. The energy transfer process from Ce 3+ to Tb 3+ was achieved after doping with Tb 3+ , enabling the conversion of the luminous color from blue to green. By doping Eu 3+ in BaCeF 5 : 10 %Tb 3+ , the energy transfer process from Tb 3+ to Eu 3+ was further realized and the transition from green to orange light continued in the phosphor. Finally, the energy transfer mechanism of Ce 3+ -Tb 3+ -Eu 3+ in the BaCeF 5 : Tb 3+ , Eu 3+ samples was explored. The results indicate that by varying the Tb 3+ and Eu 3+ concentrations, the phosphor transition from blue - green - orange light can be performed, which is a promising material to be applied to multicolor emission modulated luminescent materials as well as incandescent lamp materials.
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
·
2023
·
IF 5.2
Zhenghuan Wan,Dekang Xu,Wenxuan She,Feiyan Xie,Ying Feng,Jinyu Yang,Guochong Liu,Xin Tong
Tb 3+ doped LaBO 3 phosphors with various doping levels were synthesized by hydrothermal and post-calcination methods. The structure, morphology, chemical composition, and optical properties of the samples were studied by X-ray diffraction (XRD), Scanning electron microscope (SEM), Fourier transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), Electron paramagnetic resonance (EPR), Photoluminescence spectroscopy (PL). XRD patterns reveal that Tb 3+ doped LaBO 3 crystals with monoclinic or orthorhombic structures can be obtained by adjusting the doping content of Tb 3+ . The XPS and EDS results indicate that the elements of La, O, B, and Tb were uniformly distributed in the samples, and some doping Tb 3+ were oxidized to Tb 4+ . The prepared Tb 3+ doped LaBO 3 phosphors emit green emission at 543 nm under 271 nm excitation. The luminescence intensity is affected by the Tb 3+ doping level, and concentration quenching will be observed due to an electric quadrupole-electric quadrupole interaction (p-p) process when the Tb 3+ doping amount rises above 22 %. In particular, the luminescence properties of the Tb 3+ doped LaBO 3 phosphors are dramatically affected by the structure of the samples, and the luminescence intensity of the samples with orthorhombic structure is significantly higher than those with monoclinic structure. The decay curves of samples exhibit a double exponential behavior, and the average luminescence lifetime decreases with an increase in Tb 3+ doping levels.
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
高影响因子
Materials Today Chemistry
·
2025
·
IF 6.7
Jia Yu,Ruipeng Chai,Yuanyuan Hu,Xue Yang,Hong Xin,Xiangyu Zhang,Dangli Gao
Persistent luminescence (PersL) materials have emerged as an outstanding optical media with versatile applications in data storage, anti-counterfeiting, and beyond. However, their practical implementation is critically hindered by insufficient PersL intensity, a challenge fundamentally rooted in the incomplete understanding of trapping mechanisms. Here, we developed Tb 3+ -activated Ga 4 GeO 8 phosphors with rational defect manipulation via Ln 3+ (Ln = Pr, Eu, Ce, Er) co-doping strategies. Especially, when Eu 3+ /Er 3+ are introduced as lattice distortion agents into Tb 3+ -doped Ga 4 GeO 8 , the phosphors demonstrate dual-band PersL including blue-green PersL from Tb 3+ 5 D 4 → 7 F J transitions (492–620 nm) and red-NIR PersL emission (715 nm) originating from oxygen defect levels. Through systematic exploration of the PersL mechanism, we propose a criterion for effective trapping: stabilizing V O •• defect energy levels by replacing matrix cations with less electronegative species (e.g., Eu 3+ , Er 3+ ), which suppresses non-radiative V O defect states. This study establishes design guidelines for the rational development of high-performance PersL materials.
研究领域:
材料科学
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光学材料
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固体物理
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无机化学
·
发光学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF SOLID STATE CHEMISTRY
·
2024
·
IF 3.2
Wang Donghan,Kang Han,Wang Xinrui,Zhou Wei
Eu 3+ and Tb 3+ as central ions and 1,4-phthalic acid (H 2 BDC) as ligand, a dual lanthanide metal-organic framework, Eu-Tb(BDC), was synthesized by co-precipitation method. The products performed stable crystal structure and adjustable fluorescence color. Eu 0.15 Tb 2.85 (BDC) 3.0 was selected as an optimized probe to detect norfloxacin (NFX) in urine, and the fluorescence color was found to transfer from bright yellow to dark cyan and then to strong green with increasing NFX concentration. Mechanism analysis revealed that NFX with low concentration (10 −6 -10 −3 M) stimulated light competition with BDC ligand due to internal filtration effect (IFE), resulting in the gradual fluorescence shutdown of Eu 3+ and Tb 3+ . While further increasing concentration of NFX to 10 −3 -10 −2 M, the antibiotic molecules coordinated with lanthanide ions and transitioned their role from competitor to assistant. Where the energy transfer due to antenna effect overwhelmed IFE, the exciting light energy were retransferred to Eu 3+ or Tb 3+ , and the probe's fluorescence restored. Generally, the Eu-Tb(BDC) probe performed fluorescence turn off-on response to norfloxacin with continuous concentration changing. Additionally, when detecting other fluoroquinolone antibiotics, the fluorescence of Eu 0.15 Tb 2.85 (BDC) 3.0 changed from bright yellow to bright blue and eventually to dark red, which was attributed to the different coordination degrees of various antibiotic molecule with Tb 3+ and Eu 3+ . It can be used to distinguish norfloxacin from other fluoroquinolone antibiotics.
研究领域:
分析化学
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材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
MICROCHEMICAL JOURNAL
·
2024
·
IF 4.9
Yingfei Hui,Hao Guo,Yinsheng Liu,Mingyue Wang,Lei Sun,Liping Peng,Borong Ren,Zhiguo Yu,Wu Yang
Covalent organic frameworks (COFs) with full π-conjugation can be obtained by tuning the building blocks and covalent bonds. Meanwhile, lanthanide ions (Ln 3+ ) have attracted attention for their unique luminescent properties. In this study, we coordinated Tb ions with COF (TQBQ-COF), thereby constructing a fluorescent sensor for the detection of 2,6-pyridinedicarboxylic acid (DPA) as an anthrax biomarker. The prepared Tb 3+ @TQBQ-COF shows an ultra-low detection limit for DPA (3.58 nM), which is much lower than the required level of DPA for Bacillus anthracis to produce anthrax (60 μM). In addition, the prepared sensors showed good detection performance in detecting anionic pollutants when DPA was used as a photosensitizer. Our work provides a simple method for the detection of DPA.
研究领域:
化学
·
生物传感
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
POLYHEDRON
·
2025
·
IF 2.6
Qian Du,Chang-Sheng Wang,Yu-Guo Yang,Wei Zhao,Xiao-Na Shen,Bing Liu,Yuan-Yuan Zhang,Hua-Di Zhang,Hua-Jian Yu,Cheng-Cheng Qiu,Xian-Shun Lv,Rui Zhang,Xu-Ping Wang
Some Tb 3+ /Eu 3+ doped SrGdGa 3 O 7 (SGGO) phosphors were fabricated, achieving multi-color tunability through the addition of a sensitizer. The experimental results indicate that the doped ions are uniformly distributed, with no impurity phases detected. In SGGO-based phosphors, Eu 3+ ions serve as activators and exhibit an optimal luminescence transition level of 5 D 0 → 7 F 4 . When Tb 3+ ions are used as the sensitizer and at a specific concentration, the luminescence color transition of green → orange → red as the content of Eu 3+ enhances. Analysis of the decay lifetime curves reveals that Tb 3+ → Eu 3+ energy transfers occur in the co-doped SGGO phosphors, with the mechanism identified as quadrupole–quadrupole interaction. This article investigates the specific energy transfer processes involved. The optimum content of Eu 3+ is ascertained as 0.03. Under the excitation at 375 nm, the SGGO based phosphor containing 0.06 Tb 3+ and 0.03 Eu 3+ exhibits CIE coordinates of (0.5000, 0.4397).
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）