JOURNAL OF SOLID STATE CHEMISTRY
·
2025
·
IF 3.5
Shuaiqi Zhao,Yujie Chen,Yumeng Ge,Hongbin Zhang,Kai Yang,Shiqing Xu,Xiaolei Yang,Gongxun Bai
Multicolor phosphors are crucial components in various applications such as screen displays, lighting fixtures, and color imaging technologies. Despite their widespread use, they still encounter some obstacles in multicolored luminescence. Here, we synthesized a series of Gd 2 ZnTiO 6 phosphors doped with Tb 3+ and Eu 3+ using a high-temperature solid-state reaction method. By employing Reisfeld's approximation theory and Dexter's multipolar interaction theory, we analyzed the energy transfer mechanism from Tb 3+ to Eu 3+ . Our findings indicate that the Tb 3+ to Eu 3+ energy transfer is facilitated by quadrupole-quadrupole interactions. Additionally, we assessed the thermal stability of Gd 2 ZnTiO 6 :Tb 3+ , Eu 3+ using temperature-variable emission spectroscopy across a temperature range of 303–463 K. The Gd 2 ZnTiO 6 phosphors exhibited polychromatic luminescence ranging from green (0.3632, 0.61033) to red (0.6521, 0.3481) under 381 nm excitation by adjusting the content of Eu 3+ and Tb 3+ . Consequently, the Gd 2 ZnTiO 6 :Tb 3+ , Eu 3+ phosphors exhibit excellent luminescence performance coupled with remarkable thermal stability, offering a valuable reference for the advancement of novel and robust luminescent materials.
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
高影响因子
CRYSTENGCOMM
·
2019
·Vol. 21
·期 26
·3939-3947
·
IF 3.382
Wenpeng Xia,Jie Xiong,Li Jiang,Rui Ye,Yini Mao,Shanshan Hu,Jun Yang
KYb3F10:Ln3+ (Ln = Er, Ho, Tb, Gd, Eu, Sm, Ce and La) micro/nanocrystals with abundant morphologies were synthesized via a one-step hydrothermal route without employing any surfactants. Furthermore, the homogeneous and well-defined KYb3F10 crystals with truncated tetragonal bipyramidal, nanoparticle, nanospherical, microtubular and rugby ball shapes were achieved by manipulating the different environments of crystal growth, such as increasing the concentration of F−, adjusting the pH, using different fluorine sources and adding trisodium citrate. XRD, SEM, EDS and PL as well as lifetime analysis were used to characterize the products. The obtained KYb3F10:Ln3+ products showed bright emission colors red (Eu3+) and green (Tb3+), respectively. It has been found that larger crystal shapes/sizes can greatly enhance their luminescence properties and lifetimes due to their high crystallinity and few defects on the crystal surface. The as-synthesized KYb3F10:Eu3+/Tb3+ products might be potentially applied in multicolor lighting and displays.
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
高影响因子
BIOMATERIALS
·
2011
·
IF 7.883
Yunlu Dai,Cuimiao Zhang,Ziyong Cheng,Ping’an Ma,Chunxia Li,Xiaojiao Kang,Dongmei Yang,Jun Lin
In this study, we design a controlled release system based on CaF 2 :Ce 3+ /Tb 3+ -poly(acrylic acid) (PAA) composite microspheres , which were fabricated by filling the pH-responsive PAA inside CaF 2 :Ce 3+ /Tb 3+ hollow spheres via photopolymerization route. The CaF 2 :Ce 3+ /Tb 3+ hollow spheres prepared by hydrothermal route possess mesoporous structure and show strong green fluorescence from Tb 3+ under UV excitation. Doxorubicin hydrochloride (DOX), a widely used anti-cancer drug, was used as a model drug to evaluate the loading and controlled release behaviors of the composite microspheres due to the good biocompatibility of the samples using MTT assay . The composite carriers provide a strongly pH-dependent drug release behavior owing to the intrinsic property of PAA and its interactions with DOX. The endocytosis process of drug-loaded microspheres was observed using confocal laser scanning microscopy (CLSM) and the in vitro cytotoxic effect against SKOV3 ovarian cancer cells of the DOX-loaded carriers was investigated. In addition, the extent of drug release could be monitored by the altering of photoluminescence (PL) intensity of CaF 2 :Ce 3+ /Tb 3+ . Considering the good biocompatibility, high drug loading content and pH-dependent drug release of the materials, these hybrid luminescent microspheres have potential applications in drug controlled release and disease therapy.
研究领域:
生物材料学
·
药理学
·
肿瘤学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CRYSTENGCOMM
·
2018
·Vol. 21
·期 2
·339-347
·
IF 3.304
Wenpeng Xia,Yufeng Zhang,Jie Xiong,Shanshan Hu,Jie Yu,Yanfei Zhang,Yuxin Wan,Jun Yang
A series of BaMgF4:Ce3+/Tb3+/Eu3+ phosphors were successfully prepared via a facile hydrothermal process. X-ray diffraction (XRD), energy dispersive spectrometry (EDS), scanning electron microscopy (SEM), n-UV–UV-vis photoluminescence (PL) and fluorescence decays were employed to investigate the structure, composition, morphology, luminescence properties and energy transfer processes. The as-prepared BaMgF4 phosphors exhibit a rod-like morphology and the size of the product can be effectively regulated by changing the amount of NH4F in the original solution. Under n-UV–UV light excitation, the Ce3+, Tb3+ and Eu3+ singly-doped BaMgF4 phosphors all show good characteristic luminescence; the Ce3+–Tb3+ and Tb3+–Eu3+ co-doped BaMgF4 phosphors both show tunable emission colors from blue (green) to green (orange-red) because of the energy transfer of Ce3+ → Tb3+ and Tb3+ → Eu3+, respectively. Moreover, the efficient energy transfer from Ce3+ (Tb3+) to Tb3+ (Eu3+) ions in the co-doped samples was confirmed by investigating the excitation/emission spectra and decay lifetimes. The results indicate that the phosphors may be potentially used as single-component multi-color phosphors for white light-emitting diodes.
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 THE EUROPEAN CERAMIC SOCIETY
·
2020
·
IF 4.495
Chao Chen,Zhaofeng Gu,Qinling Li,Yuepin Zhang
Dy 3+ /Tb 3+ co-doped oxyfluoride glass ceramics (GC) containing lithium tetrafluoroyttrium (LiYF 4 ) and yttrium fluoride (YF 3 ) nanograins were prepared by a traditional melt-quenching approach. The crystalline phases and morphologies of the GCs were investigated. The GCs showed enhanced green emission from Tb 3+ ions and the quenching of Dy 3+ emission because of the efficient energy transfer from Dy 3+ to Tb 3+ ions. The electric dipole-dipole interactions were responsible for the energy transfer mechanism between Dy 3+ and Tb 3+ ions. The energy transfer efficiencies of these glass ceramics were calculated from their decay curves. The Dy 3+ /Tb 3+ co-doped oxyfluoride GCs with various visible emissions were found to be potential candidates for white-light emitting diode applications.
研究领域:
材料科学
·
光学
✓ 已验证
DOI
高影响因子
OPTICAL MATERIALS
·
2024
·
IF 3.8
Jie Yang,Huimin Du,Yue Deng,Meifang Liu,Xingzuo Liu,Jun Yang,Shanshan Hu
Quantitative detection of permanganate ( MnO 4 ‐ ) and 4-nitrophenol (4-NP) is essential for environmental safety. Fluorescence detection technology is one of the most widely used detection technologies, which can be used for the detection of various anions and organic pollutants. In this paper, Ba 4 Lu 3 F 17 :Tb 3+ phosphors were successfully obtained by hydrothermal method. The morphology transition of Ba 4 Lu 3 F 17 crystal from nanoparticles through octahedron to hexagonal prism was realized in the pH range of 3–11. The best luminescent samples were obtained by changing the type of additives and the doping concentration of Tb 3+ ions. The obtained Ba 4 Lu 3 F 17 :Tb 3+ has high selectivity and anti-interference for MnO 4 ‐ and 4-NP detection, with the detection limits being 0.79 μM and 1.28 μM, respectively.
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
MATERIALS RESEARCH BULLETIN
·
2011
·
IF 2.146
Yannan Xue,Xiaolei Ren,Xuefeng Zhai,Min Yu
Well-crystallized flower-like SrCO 3 :Tb 3+ phosphors have been synthesized by an inexpensive and friendly solvothermal process using polyvinylpyrrolidone (PVP, K30) as an additive without further annealing treatment. X-ray diffraction (XRD), Fourier transform-infrared spectroscopy (FT-IR), and field emission scanning electron microscopy (FESEM) as well as photoluminescence spectroscopy (PL) were used to characterize the resulting samples. The amount of PVP and the reaction time have strong effect on the morphology of the SrCO 3 :Tb 3+ particles. The results of XRD confirm the formation of a well-crystallized SrCO 3 phase with an orthorhombic structure. The possible formation mechanism for flower-like SrCO 3 :Tb 3+ phosphor is proposed. The SrCO 3 :Tb 3+ phosphors show the characteristic 5 D 4 – 7 F J ( J = 6, 5, 4, 3) emission lines with green emission 5 D 4 – 7 F 5 (544 nm) as the most prominent group under ultraviolet excitation.
研究领域:
材料科学
·
光学
✓ 已验证
DOI
高影响因子
Advanced Optical Materials
·
2024
·
IF 8
Xiaohan Liu,Hong Shao,Ning Li,Xue Teng,Dan Li,Xiangting Dong,Hongbo Zhang
The realization of tunable multicolor luminescence especially full-spectrum white-light emission in a single matrix has aroused more attention from researchers. To address the above challenge, Bi 3+, and Tb 3+ are selected as both activators and sensitizers with the help of energy level matching engineering of Bi 3+ and Tb 3+ having matching energy levels with Eu 3+ , a series of 1D Y 4 Al 2 O 9 :Bi 3+ , Bi 3+ /Eu 3+ , Tb 3+ , Tb 3+ /Eu 3+ and Bi 3+ /Tb 3+ /Eu 3+ nanofibers (NFs) are designed and synthesized by a simple electrospinning technique combined with an oxidative calcination. Under 298-nm UV light excitation, Y 4 Al 2 O 9 :Bi 3+ /Tb 3+ /Eu 3+ NFs demonstrate tunable multicolor luminescence (blue, purple, red, green, yellow, and white) especially full-spectrum white-light emission via double energy transfer (ET) effect and modulation of molar ratio among Bi 3+ , Tb 3+ and Eu 3+ . Additionally, Y 4 Al 2 O 9 :3%Bi 3+ /7%Tb 3+ /1%Eu 3+ NFs are sensitive to temperature, and the maximum S α and S γ values of Y 4 Al 2 O 9 :3%Bi 3+ /7%Tb 3+ /1%Eu 3+ NFs reach 0.0417 K −1 and 0.84% K −1 , respectively. In virtue of electrospinning, triple activators (Bi 3+ , Tb 3+ , and Eu 3+ ) are readily and uniformly doped in Y 4 Al 2 O 9 NFs single matrix to achieve dual function of tunable multicolor luminescence and temperature sensing. The formation principle and luminescence theory of the samples are clarified. The findings in this work are instructive to develop multicolor luminescent phosphors and temperature-sensing materials.
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
高影响因子
DALTON TRANSACTIONS
·
2011
·Vol. 40
·期 48
·12818-12825
·
IF 3.647
Xuefeng Zhai,Min Yu,Ziyong Cheng,Zhiyao Hou,Ping'an Ma,Dongmei Yang,Xiaojiao Kang,Yunlu Dai,Dong Wang,Jun Lin
Rattle-type hollow nanocapsules are among of the most promising candidates as drug carriers owing to their huge inner space and multifunctional material combination. In this paper, rattle-type hollow CaWO4:Tb3+@SiO2 nanocapsules with a diameter of 100–110 nm and a wall thickness around 10 nm were fabricated. The hollow silica nanospheres were used as nano-reactors and the luminescent core of CaWO4:Tb3+ was post-filled into the nano-reactors by a vacuum nano-casting route combined with a Pechini-type sol–gel method. Subsequently, doxorubicin hydrochloride (DOX), a model of an anti-cancer drug, is loaded into the CaWO4:Tb3+@SiO2 nanocapsules and their cell cytotoxicity, cancer cell uptake and drug release behavior are investigated in vitro. The prepared multifunctional inorganic nanocapsules show a loading capacity for DOX as high as 124 mg g−1 and sustained-release properties. The release profile of the drug from DOX-loaded nanocapsules can last over five days. Besides, the blank CaWO4:Tb3+@SiO2 shows very low cytotoxicity against cancer cell lines (HeLa cell) while the DOX-loaded nanocapsules exhibit relatively high efficiency for killing of HeLa cells. The rapid cancer cell uptake process is observed by confocal laser scanning microscopy. The results indicate that a rattle-type hollow CaWO4:Tb3+@SiO2 nanocapsule has the potential to be used as drug carrier in therapy. Moreover, it is possible to extend the synthetic strategy in this study to other rattle-type multifunctional composites to meet various demands.
研究领域:
纳米医学
·
肿瘤学
·
药剂学
·
生物材料
·
分子影像
✓ 已验证
DOI
高影响因子
Materials Today Chemistry
·
2024
·
IF 6.7
Hanyu Xu,Yanling Wei,Rong Wang,Guiying Liang,Tianqi Sheng,Zuoling Fu
The cesium-based fluoride Cs 3 YF 6 has increasingly attracted curiosity due to its potential in up-conversion luminescence applications, signifying a possible revolutionary change in the next generation of lanthanide-doped luminescent functional materials. However, the nature of the photoluminescence process involving Cs 3 YF 6 has still not been studied in detail. Developing Cs 3 YF 6 luminescence applications is an intricate endeavor. Herein, we present the optimal doping concentration required for Eu 3+ and Tb 3+ doping in Cs 3 YF 6 . Meanwhile, by spectra analyses and theoretical model simulations, we have been able to decipher the intricacies of the energy transfer interaction that transpires between Tb 3+ and Eu 3+ ions. Furthermore, a water-sensitive fluorescence response system tailored for anti-counterfeiting applications was designed, which relied on the superior luminescence characteristics of Cs 3 YF 6 doped with Tb 3+ /Eu 3+ under excitation at 254 nm, whilst simultaneously exploiting the easily deliquescent nature of Cs 3 YF 6 . This work not only enhances the understanding of Cs 3 YF 6 materials in the field of rare-earth luminescence but also introduces a novel anti-counterfeiting strategy, that propels the development of applications for rare-earth-doped fluoride materials.
研究领域:
材料科学
·
光学
·
稀土发光材料
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2013
·
IF 3.172
Yan Zhao,Bing Yan
GaN-functionalized rare earth (Eu 3+ and Tb 3+ ) organic/inorganic mesoporous nanocomposites have been successfully synthesized (designated as RE(L SBA-15) 3 (L GaN); RE = Eu, Tb; L = TAA Si, BTA Si). The organosilane precursor materials (L SBA-15) are synthesized by co-condensation of tetraethylorthosilicate (TEOS) and the functionalized β-diketones (TAA Si and BTA Si) in the presence of Pluronic P123 surfactant as a template. The modified β-diketones ligands are also used to covalently bond with surface-modified GaN and formed another precursor L GaN. Both of the precursors can coordinate with rare earth ions to synthesize the final mesoporous materials via a sol–gel process. FTIR, TEM, XRD, and nitrogen (N 2 ) adsorption/desorption measurements are employed to characterize the mesostructure of RE(L SBA-15) 3 (L GaN). The luminescence properties and thermogravimetric analysis of all the prepared materials are characterized in detail, and the results reveal that a series of uniformed mesopore structure hybrid materials has been achieved. The mesoporous material Eu(BTA Si SBA-15) 3 (BTA Si GaN) has better luminescence intensity, higher quantum efficiency, and longer lifetime than Eu(TAA Si SBA-15) 3 (TAA Si GaN). While the nanocomposite Tb(TAA Si SBA-15) 3 (TAA Si GaN) revealed the strongest characteristic emission of Tb 3+ ions than Tb(BTA Si SBA-15) 3 (BTA Si GaN), the excellent luminescent properties and thermal stability enable the hybrid mesoporous material to have potential applications in optical field.
研究领域:
材料科学
·
化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2025
·Vol. 36
·期 7
·1-10
·
IF 2.8
Gong Guoliang,Liu Chun,Zhu Jiawei,Huang Guojun,Zhang Tianyong
Compounds with crystallization and vitrification capabilities can achieve more uniform grains with higher crystalline density after glass crystallization, improving the fluorescence properties of glass ceramics (GCs). In this work, a series of Tb 3+ -doped SrLa 2 Ga 4 Si 2 O 14 glasses and glass ceramics were prepared through traditional melt quenching and thermal treatment. The glass exhibits good transmittance and a sharp exothermic peak at 961 ºC. The photoluminescence and radioluminescence properties were studied in detail, and the Tb 3+ aggregation in glass and GC was discussed. Compared with the glasses, the opaque GCs show inferior fluorescence properties but better X-ray irradiated fluorescence, about 10% of the integrated emission intensity of the commercial BGO scintillation crystal. More precise processing in glass–ceramics towards homogeneous crystallization and good transmittance need to be addressed, and a promising scintillator with improved scintillating performance can be expected.
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）