JOURNAL OF THE AMERICAN CERAMIC SOCIETY
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2020
·Vol. 103
·期 8
·4203-4213
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IF 3.502
Guoquan Qian,Guowu Tang,Qi Qian,Yongbao Xiao,Dongdan Chen,Zhonghong Jiang,Zhongmin Yang
Germanate laser glasses have received much attention as a promising host materials for mid-infrared fiber lasers in recent years because of the outstanding infrared transparency, low phonon energy, and high rare earth solubility of such glasses. However, the development of high-performance germanate laser glasses is usually based on intuition and a trial-and-error method, which can involve long experimental periods and high costs, and thus, this approach is highly inefficient. Recently, with proposals for materials genome engineering, the concept of the “glass genome” has grown of interest to us. Herein, the structures of Tm 3+ -doped germanate laser glasses (BaO–GeO 2 and BaO–La 2 O 3 –GeO 2 ) were investigated by Fourier transform infrared spectra (FTIR) and Raman spectra analyses, which revealed that the resulting glass contains similar structural groups to the neighboring congruently melted glassy compounds (NCMGCs) in the composition diagram. What is more, the structure and properties of the resulting laser glasses largely depend on NCMGCs. Then, the glass-forming region, physical properties, and luminescence properties were calculated via the use of NCMGCs in Tm 3+ -doped BaO–GeO 2 binary and BaO–La 2 O 3 –GeO 2 ternary laser glass systems. The calculated results were in good agreement with the experimental results, thus demonstrating that our approach is practical for predicting the glass-forming region, physical properties, and luminescence properties in Tm 3+ -doped BaO–GeO 2 binary and BaO–La 2 O 3 –GeO 2 ternary laser glass systems. This work may provide an effective method to develop Tm 3+ -doped germanate laser glasses rapidly and at low cost.
研究领域:
材料科学
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光学
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产品关联
DOI
高影响因子
RSC Advances
·
2018
·Vol. 8
·期 2
·596-605
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IF 2.936
Juan Yi,Zong-Yan Zhao,Yu-An Wang
Compound solid solutions have attracted intensive attention due to their adjustable structure, electronic structure, and optical properties. Despite tremendous advances in compound solid solution preparations, combining a rare metal compound and a bismuth compound with the same crystal phase by forming a compound solid solution is still challenging but fascinating. For example, RE1−xBixVO4 with a zircon-type structure exhibits tunable band gaps and photoluminescence performance with varying RE compositions. Herein, Yb1−xBixVO4 solid solutions with continuous monophasic phase prepared by a facile synthesis strategy that is combined with co-precipitation and hydrothermal methods are reported. By doping a small amount of Tm3+, YbxBi1−xVO4 solid solutions can achieve a broad range up-conversion photoluminescence from UV-light to NIR-light. Combined with DFT calculations, the underlying mechanism of experimental observations is explained. In these up-conversion processes, the existence of Tm3+ is an essential factor. In particular, the NIR-to-UV up-conversion photoluminescence of YbxBi0.98−xVO4: 2 mol% Tm3+ solid solution is very interesting and a worthy phenomenon for further studies. As such, designing compound solid solutions may provide a new avenue for controllable up-conversion efficiencies in semiconductor nanocrystals and also a novel insight into the rational tunable up-conversion process for applications in biological labeling and imaging.
研究领域:
材料科学
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光学
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理论计算
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DOI
PubMed
高影响因子
Nano Research
·
2020
·Vol. 13
·期 10
·2803-2811
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IF 8.183
Zhang Ling,Li Xiaodan,Wang Wang,Zhao Xu,Yan Xu,Wang Chenguang,Bao Haoqiang,Lu Yang,Kong Xianggui,Liu Fengmin,Liu Xiaomin,Lu Geyu
LiErF 4 was commonly used as a dipolar-coupled antiferromagnet, and was rarely considered as a luminescent material. Herein, we achieved the strong red upconversion emission of LiErF 4 simply by an inert shell coating, i.e., LiErF 4 @LiYF 4 . Owing to the unique and intrinsic ladder-like energy levels of Er 3+ ions, this LiErF 4 core-shell nanostructures present red emission (∼ 650 nm) under multi-band excitation in the near-infrared (NIR) region (∼ 808, ∼ 980, and ∼ 1,530 nm). A brighter and monochromic red emission can be further obtained via doping 0.5% Tm 3+ into the LiErF 4 core, i.e., LiErF 4 : 0.5% Tm 3+ @LiYF 4 . The enriched Er 3+ ions and strong monochromic red emission natures make LiErF 4 : 0.5% Tm 3+ @LiYF 4 nanocrystals very sensitive for trace water probing in organic solvents with detection limit of 30 ppm in acetonitrile, 50 ppm in dimethyl sulfoxide (DMSO), and 58 ppm in N , N -dimethylformamide (DMF) under excitation of 808 nm. Due to their superior chemical and physical stability, these nanoprobes exhibit excellent antijamming ability and recyclability, offering them suitable for real-time and long-term water monitoring.
研究领域:
材料科学
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分析化学
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纳米技术
✓ 已验证
产品关联
DOI
高影响因子
ANALYTICA CHIMICA ACTA
·
2024
·
IF 5.7
Yingchao Li,Canzhao Tu,Qianshun Chen,Yingying Lin,Baoming Li,Haixia Lyu
The overexpression of microRNA-222 (miRNA-222) is closely related to many human diseases, so the development of biosensors to detect this biomarker will contribute to the diagnosis of related diseases. Here, a simple, sensitive and specific fluorescence assay for the detection of miRNA-222 was developed using red-emitting upconversion nanoparticle (UCNP) as the donor and a DNA hairpin with black hole quencher-2 (BHQ-2) as the acceptor. Li + and Tm 3+ -doped UCNP with a strong emission peak at 654 nm was obtained by changing the doped ion ratio and constructing core-shell structures. Under optimal conditions, the linear range for detecting miRNA-222 is 0.5–2.5 nM and the limit of detection is as low as 0.077 nM without any complicated amplification strategy. Finally, the proposed assay was applied for the detection of miRNA-222 in serum samples. The results obtained were similar to those of the standard method, and the spiked recoveries were in the range of 97.62%–102.14 %, suggesting that the proposed method has practical value in a complex biological sample matrix.
研究领域:
生物医学
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分子诊断
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纳米技术
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分析化学
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产品关联
DOI
PubMed
高影响因子
CERAMICS INTERNATIONAL
·
2023
·
IF 5.2
Chao Zhou,Denghao Li,Lei Lei,Gongxun Bai,Huanping Wang,Xianghua Zhang,Shiqing Xu,Jianrong Qiu
Multimodal luminescence has emerged as a promising solution in the realm of anti-counterfeiting techniques, which have gained global attention due to their association with information and data security. The conventional approach to achieving multimodal luminescence typically involves combining upconversion and downshifting luminescence, which necessitates the use of external excitation sources and costly detection equipment. Herein, we develop an anti-counterfeiting strategy based on the afterglow performance of NaLuF 4 : Gd, Tm nanoparticles after X-ray excitation. The X-ray-induced Frenkel defects-base traps ensnare electrons with low kinetic energy, resulting in the creation of persistent photon traps that are responsible for the temperature-dependent afterglow intensity. The dual-band and thermo-enhanced afterglow emission can encrypt information well according to our proof-of-concept experiment and the visible light signal can be successfully captured by a smartphone camera. These unique features of NaLuF 4 : Gd, Tm nanoparticles render them highly appealing for multilevel anti-counterfeiting applications.
研究领域:
材料科学
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光学
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Hao Ge,Zhuqing Sun,Xianye Wang,Chao He,Guanying Cao
All-inorganic CsPbX 3 (X = Cl, Br, I) quantum dots (QDs) exhibit exceptional optical properties, narrow full-width-at-half-maximum (FWHM) fluorescence emissions, and straightforward synthesis, rendering them great potential for applications in display, solid-state lighting, and related fields. However, their practical utilization was significantly hindered by rapid degradation and luminescence quenching. A robust strategy to enhance stability involves encapsulating QDs within a glass matrix via in situ crystallization. Concurrently, rare earth (RE) doping has emerged as an effective approach to optimize the optical performance of CsPbBr 3 perovskite QD-embedded glasses. Investigating the crystallization behavior of RE-doped CsPbBr 3 borosilicate glasses is crucial for advancing the development of high-performance RE-doped perovskite glass materials. Building upon this foundation, Tm 2 O 3 -doped CsPbBr 3 QD glass-ceramics with varying dopant concentrations were successfully fabricated. The incorporation of Tm 3+ ions modulated QD dimensions and bandgap structures, suppressed VBr defects, and potentially established energy transfer pathways, effectively enhancing the optical performance of the QDs. Compared with undoped counterparts, the optimized sample demonstrated a 118.83% enhancement in photoluminescence (PL) intensity, a photoluminescence quantum yield (PLQY) increased from 20.6% to 37.76%, and an extended fluorescence lifetime from 198.83 ns to 225.06 ns. Furthermore, encapsulation within the borosilicate glass matrix significantly improved the temporal stability, aqueous stability, thermal stability, and photostability of CsPbBr 3 QDs. These superior properties position Tm 3+ -doped CsPbBr 3 QDs@glass composites as ideal candidates for high-performance lighting, wide-color-gamut displays, and fingerprint recognition technologies.
研究领域:
材料科学
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光学材料
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纳米技术
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固态照明
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显示技术
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Lingjun Zhou,Wenyan Zheng,Muzhi Cai,Feifei Huang,Ying Tian,Shilong Zhao,Liaolin Zhang,Junjie Zhang
The TeO 2 -ZnO-Na 2 O glass system demonstrates significant promise for mid-infrared laser applications due to its high refractive index and low phonon energy, although it is inherently limited by poor thermal stability. Traditional methods aimed at enhancing thermal stability, such as the incorporation of intermediates, typically result in compromised optical performance. However, this study introduces a synergistic optimization strategy through strategic Ta 2 O 5 doping. A systematic analysis utilizing Differential Scanning Calorimetry (DSC), Raman spectroscopy, X-ray Photoelectron Spectroscopy (XPS), and photoluminescence (PL) spectroscopy has uncovered a novel correlation between optical performance and average rather than maximum phonon energy. This discovery provides a refined theoretical framework for the design of tellurite glasses. The optimized Tm 3 -doped TZNT4 glass, with a glass transition temperature ( T g ) of 388 °C and a thermal stability range ( ΔT ) of 137 °C, demonstrates excellent absorption (9.1 ×10 −21 cm 2 ) and emission cross-sections (7.1 ×10 −21 cm 2 ) at 2 μm. This work establishes a structure-property-performance paradigm for tellurite glasses, effectively addressing the critical trade-off between thermal robustness and mid-infrared emission performance through rational composition engineering.
研究领域:
材料科学
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光学
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固体物理
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红外技术
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玻璃工程
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DOI
高影响因子
DALTON TRANSACTIONS
·
2020
·Vol. 49
·期 35
·12327-12337
·
IF 4.174
Mingyue Xu,Bin Chi,Zhiyuan Han,Yuting He,Feng Tian,Zushun Xu,Ling Li,Jing Wang
Gd3+ and Tm3+ doped Prussian blue (Gd/Tm–PB) with high uniformity and dispersibility was synthesized by a facile solvothermal method. The conditions for the synthesis of Gd/Tm–PB were explored. Through the regulation of the ratio of Gd3+/Tm3+, the Gd/Tm–PB particles with the optimal size (about 150–200 nm) and the best fluorescence and photothermal effect were obtained. On the basis of the optimal Gd/Tm–PB, further coated by polydopamine (PDA) functionalized metal–organic frameworks (MOFs), a multifunctional platform Gd/Tm–PB@ZIF-8/PDA for cancer diagnosis and treatment was established. Doxorubicin (DOX) was selected as a drug model and the drug loading of Gd/Tm–PB@ZIF-8/PDA was found to be 81 mg g−1. Cytotoxicity analysis indicated that Gd/Tm–PB@ZIF-8/PDA was highly biocompatible. The DOX release at different pH values and GSH concentrations revealed an excellent pH/GSH-triggered drug release. Through the combination of the near infrared photothermal performance of Gd/Tm–PB, chemo-photothermal therapy can be achieved to further improve the anti-cancer efficiency. In addition, the Gd/Tm–PB@ZIF-8/PDA nanoparticles can be tracked by fluorescence imaging (FOI) and magnetic resonance imaging (MRI). Cell FOI and in vivo MRI experiments showed the potential application of Gd/Tm–PB@ZIF-8/PDA in dual mode imaging guided therapy. In vivo antitumor experiments demonstrated the higher anticancer efficacy of Gd/Tm–PB@ZIF-8/PDA with a combined effect of chemo-photothermal therapy. This work provides a new strategy for nano-drug carriers in the direction of integrated diagnosis and treatment.
研究领域:
纳米技术
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生物医学工程
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癌症研究
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材料科学
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药学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）