Article
Optics
Jillian E. Moffatt, Georgios Tsiminis, Elizaveta Klantsataya, Ori Henderson-Sapir, Barnaby W. Smith, Nigel A. Spooner, David J. Ottaway
Summary: This study measured the strength of the energy transfer process of erbium ions in a range of fibers for the first time, providing crucial data for improving the performance of mid-infrared fiber lasers.
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
(2021)
Article
Materials Science, Ceramics
Yuebo Hu, Yang Shen, Chaofeng Zhu, Shujiang Liu, Hao Liu, Yanfei Zhang, Yuanzheng Yue
Summary: The optical properties of trivalent erbium-doped oxyfluoro-germanate glass-ceramics were studied, revealing a non-linear variation in density and bandgap energy with increasing heat treatment temperature, consistent with the luminescent properties. Additionally, an indirectly allowed transition in the bandgap and exponential dependence of absorption coefficient on photon energy, in compliance with the Urbach rule, were observed. These findings may be beneficial for designing rare earth ion-doped glass-ceramics with strong luminescent effects.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Optics
Guowu Tang, Zhaoheng Liang, Wenhua Huang, Dongliang Yang, Le Tu, Wei Lin, Xiangyang Song, Dongdan Chen, Qi Qian, Xiaoming Wei, Zhongmin Yang
Summary: This study focuses on the preparation of Tm3+/Ho3+ co-doped germanate glass and the successful fabrication of a broadband high-gain multimaterial fiber. The fiber is used for high-repetition-rate mode-locked fiber lasers. An all-fiber-integrated passively mode-locked fiber laser with high frequency and broadband output is demonstrated.
Article
Materials Science, Multidisciplinary
Xiaoyun Xu, Xifeng Liu
Summary: The study reported the construction of phosphors free of active dopants via nanocrystallization of glass and successfully fabricated a single-phase Zn2GeO4 phosphor with intense green luminescence. This work provides an effective strategy for the development of novel active photonic materials free of active dopants.
MATERIALS RESEARCH EXPRESS
(2022)
Article
Materials Science, Ceramics
Xinyu Chen, Lihui Huang, Bo Li, Xiaolei Yang, Gongxun Bai, Shilong Zhao, Shiqing Xu
Summary: Pr3+ doped high density germanate glasses were prepared and their physical and luminescent properties were explored. The glass with BaF2 showed a maximum phonon energy of 810 cm(-1) and a density exceeding 6 g/cm(3). The glass exhibited excellent radiation resistance after 2 hours of X-ray irradiation. Intense blue and green emissions, along with weak red emissions, were observed when the glass was excited by X-ray, and the blue fluorescence lifetimes ranged from 9.15 to 12.59 μs. These results suggest that Pr3+ doped germanate glass could be a potential scintillating material in the field of fast X-ray detection.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Electrical & Electronic
Yang Lou, Yang Chen, Zhimu Gu, Qiang Qiu, Chanjuan Shi, Le He, Yingbin Xing, Jinggang Peng, Haiqing Li, Yingbo Chu, Nengli Dai, Jinyan Li
Summary: The report introduces the use of Er3+ and Ce3+ in phosphosilicate fiber to regulate SESA and extend the L-band gain bandwidth. The addition of Ce3+ weakens the SESA effect, leading to an extension of the longest wavelength to 1623 nm.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)
Article
Materials Science, Ceramics
Ling Huang, Lihua Li, Mingying Peng, Linling Tan, Zhijun Ma
Summary: By tailoring the glass network topology, the luminescence behavior and glass stability of tellurium-doped germanate glasses can be manipulated. Enhancing the near-infrared luminescence of tellurium by adjusting the topological cages in the glass network structure through varying network modifiers, while significantly improving glass stability by introducing alkaline earth oxides for increased network connectivity.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Multidisciplinary
Yangyinyi Duan, Xiangping Li, Rensheng Shen, Yuhang Zhang, Xin Wang, Zhipeng Guan, Ke Wang, Yongze Cao, Xizhen Zhang, Baojiu Chen
Summary: Sm3+ doped sodium germanate glasses with suitable composition and good luminescence thermal stability were synthesized using high temperature melt-quenching technique. The luminescence performance and optical transition properties of Sm3+ in the glasses were studied. The concentration dependent luminescence quenching of the (4)G(5/2) level of Sm3+ was found to be due to the electric dipole-dipole interaction among Sm3+. Temperature dependent luminescence characteristics and thermal quenching behavior were also investigated, showing excellent luminescence thermal stability.
MATERIALS RESEARCH BULLETIN
(2022)
Article
Materials Science, Ceramics
Jiangkun Cao, Yicong Ding, Rene Limbach, Vahid Nozari, Roman Sajzew, Minghui Sun, Pengzhu Zhang, Lothar Wondraczek
Summary: We demonstrate a facile route for preparing Bi-doped calcium-aluminate and calcium-aluminogermanate glasses with tunable photoluminescence, suitable for applications demanding a semitransparent photoconverter.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Multidisciplinary Sciences
Yang Liu, Zheru Qiu, Xinru Ji, Anton Lukashchuk, Jijun He, Johann Riemensberger, Martin Hafermann, Rui Ning Wang, Junqiu Liu, Carsten Ronning, Tobias J. Kippenberg
Summary: Erbium-doped fiber amplifiers have revolutionized optical communications and laser technology, but their practical use is limited by insufficient output power. This study demonstrates a photonic integrated circuit-based erbium amplifier that achieves high output power and gain, surpassing state-of-the-art semiconductor amplifiers. By applying ion implantation to low-loss silicon nitride photonic integrated circuits, various fiber-based devices can be miniaturized.
Article
Chemistry, Physical
Chunxu Wang, Mingjie Zhang, Yuanzhi Chen, Yan Wang, Junchang Lu, Xiangxin Huang, Yuhang Wei, Lei Wan, Shuqiang Huang, Zhen Li, Zhenqiang Chen, Zhaohui Li
Summary: Highly erbium-doped glasses were synthesized using the ADL technique, with an optimal doping concentration of 1.61 x 10(21) cm(-3). The glasses exhibited the strongest emission intensity in the C-band and showed potential as substrate materials for optical waveguide amplifiers. Gain simulation models were developed with MATLAB, and overall gain characteristic curves of optical waveguide amplifiers with different lengths were theoretically calculated and optimized using COMSOL software. An internal net gain of up to 12.13 dB/cm was achieved in the C-band from a hybrid waveguide amplifier with 1 cm length.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Ceramics
Jie Luo, Zhuohao Xiao, Lingwei Zeng, Junhao Xu, Jing Liu, Guannan Li, Chunmei Li, Hong He, Jianfeng Tang
Summary: A germanate-based oxyfluoride transparent glass-ceramic functionalized by Tm3+:Ca2YbF7 nanocrystals was developed, which exhibited greatly enhanced upconversion emission. This emission was utilized for constructing optical thermometry based on the indirect thermally coupled energy levels of Tm3+ ions. The thermometry potentials of PG and GC8 were systematically evaluated and found to have superior sensitivity, resolution, and repeatability compared to reported materials.
CERAMICS INTERNATIONAL
(2023)
Article
Physics, Multidisciplinary
Gui-Rong Liu, Xiao-Dong Chen, Hong-Gang Liu, Yan Wang, Min Sun, Na Yan, Qi Qian, Zhong-Min Yang
Summary: The effects of Nb2O5 dopant on the radiation response of BGG glass were studied, and it was found that the dopant inhibited the formation of certain defects after gamma-ray irradiation, thus enhancing the radiation resistance of the glass.
Article
Optics
N. Luewarasirikul, S. Sarachai, M. Djamal, J. Kaewkhao
Summary: Er3+-doped BaNaB glasses were prepared and their luminescence properties were studied. The glasses exhibited strong emission intensities in the near-infrared and visible regions. Especially, the glass samples with 3.0% and 4.0% of Er3+ showed the best performance in both the near-infrared and visible regions.
Article
Engineering, Electrical & Electronic
Li Kai, Junqiang Sun, Ya Gao
Summary: The method utilizes a pi-phase-shifted fiber Bragg grating to detect and modulate the wavelength shift induced by erbium-doped fiber Bragg grating, mapping the wavelength shift onto the amplitude variation of the beat signal through microwave photonics technique. It is capable of detecting a 1 GHz frequency shift corresponding to 0.008 nm wavelength shift with potential for further resolution improvement.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)
Article
Materials Science, Ceramics
Ran Wei, Xiaoqing Liu, Ying Tian, Feifei Huang, Shiqing Xu, Junjie Zhang
Summary: The study successfully obtained a Sn-based glass and combined it with graphite to create a Sn-based glass-graphite composite anode, which exhibited excellent capacity maintenance. The addition of graphite effectively inhibited the accumulation of Sn particles, improved the capacity of the Sn-based glass anode, and reduced its resistance.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Physical
Yuwei Luo, Lengyuan Niu, Yifan Wang, Peipei Wen, Yinyan Gong, Can Li, Shiqing Xu
Summary: Cu2O films with (100) and (111) facets were fabricated by adjusting the pH value of the electrolyte. Cu2O(100) exhibited higher SERS activity and lower detection limit compared to Cu2O(111). (100) facet possessed lower electron work function and better adsorption ability for 4-NBT, resulting in efficient interfacial charge transfer and enhanced SERS activity.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Jinjing Ma, Lei Lei, Yubin Wang, Shiqing Xu
Summary: Metal halide perovskite nanoparticles show potential in X-ray detection and imaging, but they have poor stability. In this study, composites of CsPbBr3 nanoparticles and BaLuF5:15Gd/15Tb nanoparticles were used to prepare a scintillation film, resulting in improved scintillation intensity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Hao Li, Yingjie Zhao, Ilya Kolesnikov, Shiqing Xu, Liang Chen, Gongxun Bai
Summary: This study successfully developed rare earth ions-doped Ba2LaF7 nanocrystals as the core material in a multi-functional system for photothermal therapy. Optical temperature measurement based on fluorescence intensity ratio improved sensitivity, and the nanocrystals showed a good photothermal response to laser pumping power and could be used for photothermal imaging.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Spectroscopy
Dingchen Tang, Ying Tian, Dominik Dorosz, Xu Wang, Xueying Yang, Yongyan Liu, Xianghua Zhang, Junjie Zhang, Shiqing Xu
Summary: In this paper, Ho3+/Yb3+ co-doped chloride-modified fluorotellurite glasses with 2-3 μm mid-infrared luminescence were prepared and their optical properties were investigated. The glasses showed high transmittance and low phonon energy, and the mid-infrared fluorescence intensity was enhanced by energy transfer. The calculated emission cross-section and quantum efficiency indicated the potential application of the glass in mid-infrared fiber laser research.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Geosciences, Multidisciplinary
Rui Zhang, Mei Yuan, Bobo Li, Zhaoping Li, Qing Lv, Shiqing Xu
Summary: In this study, the effect of acidification on the wettability and adsorption characteristics of anthracite coal was investigated. It was found that acid modification can enhance the wettability of coal samples and reduce their adsorption capacity for coalbed methane. This research has significant implications for improving the efficiency of coalbed methane extraction.
NATURAL RESOURCES RESEARCH
(2023)
Article
Materials Science, Ceramics
Yixi Wu, Panpan Li, Mingshuang Guan, Yanyan Guo, Shiqing Xu, Junjie Zhang
Summary: In this paper, the authors fine-tuned the composition of the borate matrix to introduce Eu2+ ions into CaAl2O4 and SrAl2O4 crystals in different concentrations, achieving tunable afterglow emission with multiple emission bands in polycrystal fields. Furthermore, the addition of Eu3+ in the borate glass matrix enriched the luminescent characteristics.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Hongbin Zhang, Gongxun Bai, Le Wang, Muzhi Cai, Renguang Ye, Junjie Zhang, Shiqing Xu
Summary: In this study, environmentally friendly γ-phase cerium sulfide powders were successfully produced, and the effect of impurity content on their spectral properties was investigated. The results showed that reducing the impurity content can significantly improve the color properties.
CERAMICS INTERNATIONAL
(2023)
Article
Optics
Mingshuang Guan, Yixi Wu, Zhaojing Kuang, Shiqing Xu, Junjie Zhang
Summary: This study successfully synthesized CsPbClxBr3-x PQD glass with excellent stability and improved the PL performance of cyan emission PQDs through excessive halogen doping. The introduction of CsPbCl2Br1 PQD glass fills the cyan gap in white LEDs and achieves a high color rendering index and color gamut area.
Article
Chemistry, Multidisciplinary
Le Wang, Gongxun Bai, Peng Xue, Shuqin Zhang, Liang Chen, Shiqing Xu
Summary: Radiation cooling technology plays an important role in reducing energy transmission, alleviating urban heat island effect, and saving energy. This study prepared red and orange materials with excellent performance through green synthesis method and fabricated colored films, which can effectively reduce the surface temperature of buildings.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Yifan Wang, Zhengwei Lu, Peipei Wen, Yinyan Gong, Can Li, Lengyuan Niu, Shiqing Xu
Summary: Crystal facet engineering is an effective strategy to regulate the orientations and electrochemical properties of metal oxides. This study successfully synthesized alpha-MnO2 nanorods with different exposed facets and showed that {110} and {310} facets exhibited higher pseudocapacitances due to their stronger adsorption capacity and lower diffusion barriers.
Article
Optics
Zhaojing Kuang, Mingshuang Guan, Mengli Gao, Jiaming Pan, Shiqing Xu, Junjie Zhang
Summary: Perovskite quantum dots (QDs) have remarkable optical properties, but their photoluminescence performance and stability still need improvement. In this study, CsPbBr3 QDs glass with high photoluminescence quantum yield and excellent hydro-stability was developed through a high temperature fusion process and subsequent heat treatment. The addition of CaO was found to promote the precipitation and growth of QDs by loosening the glass structure and facilitating atomic migration and reorganization. The research also provided insights into the relationship between network structure and CsPbBr3 QDs crystallization.
JOURNAL OF LUMINESCENCE
(2024)
Article
Chemistry, Multidisciplinary
Huirong Zou, Minghao Yi, Shiqing Xu, Lei Lei
Summary: Compared with commercial bulk scintillators and halide perovskites, lanthanide-doped fluoride nanoscintillators (NSs) exhibit high photochemical stability, low bio-toxicity and tunable emissions. By using a facile rapid room-temperature reaction method, lanthanide-doped NaBiF4 NSs with a hollow structure, strong scintillation intensity and ultra-weak afterglow were successfully prepared. The incorporation of different ions can enhance or decrease the scintillation intensity and achieve high spatial resolution.
CHEMICAL COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Haolin Yang, Anshuo Zhang, Hai Guo, Denghao Li, Shiqing Xu, Lei Lei
Summary: This study proposes an effective strategy to significantly enhance the upconversion (UC) intensity of nanoparticles (NPs) by constructing local energy clusters. By increasing the doping concentrations and reducing energy loss, UC efficiency is greatly improved. In addition, the formation of energy clusters within the crystal lattice also changes the relationship between UC intensity and temperature, resulting in enhanced temperature sensing performance.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Physical
Yi Cheng, Lei Lei, Wenjuan Zhu, Yubin Wang, Hai Guo, Shiqing Xu
Summary: In this study, an effective strategy to enhance the light yield of nanoscintillators (NSs) by engineering the energy gap was proposed. The results demonstrated that the engineered LiLuF4:Tb@LiLuF4 NSs exhibited high light yield and enabled high-resolution X-ray excited optical luminescence (XEOL) imaging at low dose rates.
