Article
Materials Science, Multidisciplinary
Yuchao Shi, Jing Li, Wenhao Cui, Yaru Peng, Yuxin Huang, Li Chen
Summary: Monodisperse In2O3: Yb3+/Er3+ upconverting nanoparticles were successfully synthesized via solvothermal method with controllable size around 31nm. The obtained UCNPs exhibit strong upconversion luminescence and fine stability with SiO2 protecting layer, making them a potential oxide upconverting material for biological applications. The UCL properties and possible energy transfer processes of In2O3: Yb3+/Ho3+ and In2O3: Yb3+/Tm3+ NPs were also investigated, showing promising results.
Article
Nanoscience & Nanotechnology
Schindra Kumar Ray, Bhupendra Joshi, Jin Hur
Summary: In this study, rare earth-doped α-NiMoO4 nanoparticles were successfully synthesized, and white light emission was obtained by tuning the concentrations of different dopant ions. The nanoparticles exhibited white color emission and could be potential candidates for white-light devices.
Article
Chemistry, Physical
Xiaofan Ge, Zhiying Wang, Xiaoli Bai, Hanyu Xu, Zuoling Fu
Summary: In this study, novel upconversion luminescence phosphors were developed and the intrinsic optical bistability phenomenon was observed. These phosphors exhibit excellent performance and have potential applications in optical switching devices and anti-counterfeiting technology.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Inorganic & Nuclear
Hang Liu, Mingtai Liu, Kailin Wang, Bo Wang, Xiukai Jian, Guangyao Bai, Yuhong Zhang
Summary: BaIn2O4:Yb3+/Tm3+/RE3+ (RE = Er3+, Ho3+) upconversion (UC) phosphors synthesized via sol-gel method show high UC emission efficiencies and bright emission visible to the naked eye. The luminescence intensity ratio (LIR) technology is used to study the optical temperature-sensing properties, revealing the maximum absolute sensitivity at specific temperatures based on non-thermally coupled levels. BaIn2O4:Yb3+/Tm3+/RE3+ samples exhibit excellent optical temperature-sensing properties and have potential applications in optical thermometry.
DALTON TRANSACTIONS
(2021)
Article
Materials Science, Ceramics
Jingyu Feng, Zuoling Fu, Zhiying Wang, Hanyu Xu
Summary: In this study, three multimodal optical thermometers were designed using doped phosphors BaLu2Si3O10: Er3+/Ho3+/Nd3+ and Yb3+. Two visible two-mode optical thermometers were established based on the thermo-response of green and red emissions, while a near-infrared multimodal optical thermometer was proposed using the continuous luminescence thermal enhancement. The integration of multiple independent optical addressed temperature readout modes provides a diversified approach to the design of highly sensitive optical thermometers.
CERAMICS INTERNATIONAL
(2023)
Correction
Chemistry, Multidisciplinary
Heyan Wu, Yunhao Liang, Yue Ma, Jun Yang, Shanshan Hu
Summary: This paper investigates the up-conversion luminescence properties and temperature sensitivity of AgBi(MoO4)2 phosphors. The results of this study are of significant importance for applications in temperature sensors and optoelectronic displays.
Article
Engineering, Electrical & Electronic
Hanyu Xu, Mengmeng Dai, Kejie Li, Aijun Li, Tianqi Sheng, Zuoling Fu
Summary: Luminescence intensity ratio (LIR) thermometry was established in Cs-based fluorides based on distinct up-conversion luminescence centers. By comparing the luminescence intensity of different up-conversion emission ions, the most suitable ion for the perovskite-like Cs3YF6 material was determined. Among the samples, Er-doped Cs3YF6 showed the best performance with a relative sensitivity of 0.96% K-1 according to the LIR fitting findings. However, the absolute sensitivity of Cs3YF6: Yb, Tm was extremely high, suggesting that it is not reliable in the LIR temperature evaluation system due to the temperature resolution.
ACS APPLIED ELECTRONIC MATERIALS
(2023)
Article
Chemistry, Physical
Karolina Kowalska, Marta Kuwik, Joanna Pisarska, Wojciech A. Pisarski
Summary: This study fabricated multicomponent TiO2-modified germanate glasses co-doped with Yb3+/Ln(3+) (Ln = Pr, Er, Tm, Ho) and demonstrated that the addition of TiO2 significantly enhanced the near-infrared luminescence bands of the glass system. The findings suggest promising applications in optical communications.
Article
Chemistry, Physical
Qixiao Wu, Zheng Xu, S. Wageh, Ahmed Al-Ghamdi, Suling Zhao
Summary: A series of NaYF4:Yb3+, Tm3+@NaYF4:Yb3+, Er3+ core@shell nanocrystals with different sensitizer contents were synthesized to investigate the impact of sensitizer Yb3+ on upconversion luminescence. The results showed that as the Yb3+ content increased, the green upconversion luminescence decayed faster than the red, and the red to green upconversion luminescence ratio significantly increased in samples highly doped with Yb3+.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Spectroscopy
Xiumei Yin, Qi Xiao, Lin Lv, Xingyu Wu, Xinyao Dong, Ying Fan, Na Zhou, Xixian Luo
Summary: A series of Yb3+, Er3+, Tm3+ co-doped K3Gd(PO4)(2) phosphors were prepared by solid-state reaction method. The synthesized samples showed color-tunable upconversion luminescence from yellow to blue with increasing Tm3+ doping contents under 980nm excitation. The upconversion mechanisms of Yb3+, Er3+, Tm3+ co-doped system were systematically investigated, and varying contents of Tm3+ can alter the upconversion emissions of blue, green, and red through energy transfer processes. Furthermore, the thermometric performances of the phosphors were analyzed in the temperature range of 300-675 K, and the maximum relative and absolute sensitivity reached 0.78% K-1 and 0.168 K-1, respectively, using non-thermally coupled energy levels (H-2(11/2)/F-4(9/2) of Er3+). The results suggest that the luminescence intensity ratio technology based on non-thermally coupled energy levels may be a more effective choice for optical thermometry, and these findings have potential applications in color-tunable luminescence and non-contact temperature sensing.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Chemistry, Multidisciplinary
Heyan Wu, Yunhao Liang, Yue Ma, Jun Yang, Shanshan Hu
Summary: This work focuses on the synthesis of multi-color luminescence phosphors and the temperature sensitivity of AgBi(MoO4)(2):Yb3+/Er3+. AgBi(MoO4)(2)-based phosphors with uniform and spherical particles were prepared using a simple hydrothermal method, and various colored luminescence phosphors were obtained by doping Ln(3+) ions. The investigation revealed that the fluorescence intensity of AgBi(MoO4)(2):Yb3+/Er3+ decreases with increasing temperature. The absolute sensitivity of the phosphor reached a maximum value of 1.32% K-1 at 463 K, making it suitable for use as a highly sensitive FIR thermometer.
Article
Spectroscopy
Chenxu Sheng, Xiangping Li, Yu Tian, Xin Wang, Sai Xu, Hongquan Yu, Yongze Cao, Baojiu Chen
Summary: The LaNbO4: Nd3+/Yb3+/Ho3+ phosphor was prepared using a conventional high temperature solid-state reaction method. The study focused on the temperature-dependent luminescence properties of the phosphor and its potential application in temperature sensing. It was found that the red-to-green UC emission intensity ratio (IR/IG) of Ho3+ showed a linear increasing tendency with temperature rising, making it a good candidate for optical temperature sensors.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Chemistry, Physical
Teng Zheng, Marcin Runowski, Natalia Stopikowska, Malgorzata Skwierczynska, Stefan Lis, Peng Du, Laihui Luo
Summary: Optical thermometers based on Er3+/Tm3+/Yb3+-doped Bi2MoO6 materials exhibit bright color-tunable upconversion emissions and exceptional thermal sensitivity, making them promising candidates for multi-parameter temperature sensing applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Optics
Xiaoli Gao, Dandan Ju, Xu Sang, Jiaxin Yang, Yuping Zhang, Feng Song
Summary: The fluorescence-based temperature measurement technology using rare earth doped NaBiF4 matrix luminescent materials has attracted great interest. However, most current works rely on the thermal coupling energy levels obtained from a single luminous center in the NaBiF4 matrix, limiting the sensitivity and accuracy of temperature measuring materials. In this study, Yb3+/Er3+/Tm3+ triple doped NaBiF4 nanomaterials are prepared and the Arrhenius equation is used to overcome the energy gap restriction and improve the temperature sensitivity and uncertainty. The crystal structure, morphology, photoluminescence properties, and energy transfer of the doped nanomaterials are evaluated, providing insights into integrating them into optical thermometric materials using FIR technology.
JOURNAL OF LUMINESCENCE
(2023)
Article
Chemistry, Physical
D. Kasprowicz, K. Jaroszewski, P. Gluchowski, E. Michalski, A. Majchrowski
Summary: Single crystals of Bi2ZnOB2O6 doped with Er3+ and Yb3+ ions were grown using the Kyropoulos method, exhibiting high values of nonlinear optical coefficients and efficient luminescence of Er3+ ions. The study investigated the structure, vibrational, and luminescent properties of the crystals for the first time, revealing the potential for use in integrated new-generation laser devices.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Dapeng Huang, Ying Xie, Dazhi Lu, Guangjun Zhou, Jiyang Wang, Haohai Yu, Huaijin Zhang
JOURNAL OF PHYSICAL CHEMISTRY C
(2020)
Article
Materials Science, Multidisciplinary
Weikang Liu, Bin Cheng, Shaoqing Ren, Wei Huang, Jihao Xie, Guangjun Zhou, Hongwei Qin, Jifan Hu
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2020)
Article
Neurosciences
Xingzhi He, Jiarui Li, Guangjun Zhou, Jing Yang, Sam McKenzie, Yanjun Li, Wenwen Li, Jun Yu, Yang Wang, Jing Qu, Zhiying Wu, Hailan Hu, Shumin Duan, Huan Ma
Summary: This study shows a positive correlation between hippocampal oscillatory strength and excitatory monosynaptic drive onto inhibitory neurons in freely behaving mice. By manipulating experience-dependent E -> I synaptic input/plasticity, the researchers were able to demonstrate its role in memory function. Deleting a specific protein affected long-term memory and brain wave rhythms.
Editorial Material
Cell Biology
Yue Pan, Guangjun Zhou, Wenwen Li, Xingzhi He, Cuicui Li, Yanjun Li, Tao Li, Hailan Hu, Huan Ma
Summary: This study revealed a novel mechanism in which synaptic activities recruit long-lasting autophagy through excitation-transcription coupling for synaptic remodeling.
Article
Cell Biology
Yue Pan, Xingzhi He, Cuicui Li, Yanjun Li, Wenwen Li, Hanbin Zhang, Yang Wang, Guangjun Zhou, Jing Yang, Jiarui Li, Jing Qu, Hao Wang, Zhihua Gao, Ying Shen, Tao Li, Hailan Hu, Huan Ma
Summary: This study reveals that activating NMDARs induces transcription-dependent autophagy for synaptic turnover and late-phase long-term synaptic depression, uncovering mechanistic commonalities between L-LTP and L-LTD. The findings suggest that synaptic activity can tune excitation-transcription coupling for distinct long-lasting synaptic remodeling.
Article
Chemistry, Applied
Haining Song, Haifeng Zhou, Qianqian Zhuang, Zexin Li, Fenglei Sun, Zhenlei Yuan, Youxin Lou, Guangjun Zhou, Yujun Zhao
Summary: Oxidizing ClO- and IO4- are widely present in the environment and have a close relationship with the health of organisms. Therefore, it is significant to have a fast, sensitive, and direct detection method for these two species. A ratiometric fluorescent nanosensor was designed using IFE in UCNPs @PAA and Fe(II)-phenanthroline system, without the use of noble metal nanoparticles, for the detection of ClO- and IO4-. The nanosensor utilizes Fe(II)-phenanthroline complex as a fluorescent absorber, which can quench the green light of UCNPs based on the concentration of Fe(II). The linear range extends to 800 and 120 mmol/L, with detection limits of 1.30 and 0.58 mmol/L for NaClO and NaIO4, respectively. Finally, the nanosensor was successfully applied for the detection of NaClO and NaIO4 spiked in milk, spring water, and tap water with good recoveries.
JOURNAL OF RARE EARTHS
(2023)
Article
Chemistry, Multidisciplinary
Weikang Liu, Liang Liu, Bin Cheng, Hongwei Qin, Guangjun Zhou, Bin Cui, Jifan Hu
Summary: Ion migration has a significant impact on the crystal lattice field, electron filling, orbital occupation, and spin polarization, thereby altering the physical properties. Electric field is a useful tool for controlling ion migration, but it can complicate the system by simultaneously moving multiple ions. Therefore, it is highly important to investigate controllable and selective single ion migration with a clear mechanism.
Article
Materials Science, Multidisciplinary
Fenglei Sun, Zhenlei Yuan, Peng Guo, Haifeng Zhou, Jiaxuan Wang, Chuan Liao, Caoyuan Niu, Guangjun Zhou, Xiaoqiang Yu
Summary: A dual functional nanosensor was designed in this study to detect Cr (III) and STPP with high selectivity and accuracy. The fluorescence intensities of UCNPs at 654 nm can be used to detect the content of Cr (III) and STPP, with detection limits of 0.44 μM and 0.54 μM, respectively. This nanosensor shows potential for determining STPP in green tea drink and drinking water due to its high selectivity and accuracy.
Article
Physics, Applied
Xue Ren, Liang Liu, Bin Cheng, Weikang Liu, Ruiyue Chu, Tingting Miao, Taiyu An, Guangjun Zhou, Bin Cui, Jifan Hu
Summary: Efficient field-free current-induced switching of magnetization in ferrimagnetic CoGd is achieved using a composite target deposition method. The critical switching current density is low and the switching can be performed without any gradient designs. A coupled ferrimagnetic macrospin model is established and shows agreement with experimental results. These findings suggest that deposition with composite targets is an optimal route for fabricating high-performance spin-orbit torque devices capable of field-free, deterministic, and low-consumption magnetization switching.
APPLIED PHYSICS LETTERS
(2022)
Article
Automation & Control Systems
Tingting Miao, Bin Cui, Cungang Huang, Di Wang, Long Liu, Weikang Liu, Yongzhe Li, Ruiyue Chu, Xue Ren, Liang Liu, Bin Cheng, Guangjun Zhou, Hongwei Qin, Guozhong Xing, Jifan Hu
Summary: The construction of artificial synapse based on electric field-controlled ion migration is a promising approach for low-energy consumption intelligent devices, but imitating the complex synapse diversity of the biological system remains challenging. In this study, the reversible phase transition between insulating SrCoO2.5 and metallic SrCoO3 induced by ionic liquid gating and anisotropic dynamics of oxygen ion migration along the [110] crystal orientation are utilized. The crystal orientation-dependent ion migration and resulting metal-insulator transition provide an intriguing opportunity to build artificial synapses with different performances, such as excitatory or inhibitory characters, learning accuracy, and cooperation capability. This research not only sheds light on anisotropic ion migration in oxides but also lays a foundation for the development of diverse oxide-based artificial neural networks.
ADVANCED INTELLIGENT SYSTEMS
(2023)
Article
Chemistry, Physical
Jiaxuan Wang, Dapeng Huang, Yifei Zhou, Chuan Liao, Peng Guo, Zexin Li, Guangjun Zhou, Xiaoqiang Yu, Jifan Hu
Summary: A simple and versatile postprocessing approach is reported for the near-single-dot passivation and encapsulation of lead-free double perovskite Cs2Ag0.4Na0.6InCl6:Bi quantum dots. The strategy involves replacing unstable ligands with -N-Cl bonding on the surface of nanocrystals, resulting in a compact and robust silica layer without compromising the optical properties of the quantum dots. This approach provides a versatile way of creating nanoscale-particle level protection of luminescent quantum dots and can be universally compatible with solution-based patterning techniques and photonics applications.
Article
Chemistry, Multidisciplinary
Peng Guo, Jiaxuan Wang, Chuan Liao, Haifeng Zhou, Dapeng Huang, Guangjun Zhou, Xiaoqiang Yu, Jifan Hu
Summary: Novel up-conversion luminescent Yb3+/Ln(3+) (Tm3+, Ho3+, Tm3+/Ho3+)-doped Y6MoO12 (YMO) nanocrystals were synthesized using the sol-gel method, with consistent spherical morphology and perfect crystallinity confirmed by X-ray diffraction (XRD) and scanning electron microscope images. The synthesized samples exhibited multicolour emission in the visible region and good stability, retaining 70% luminescence intensity even after annealing at 700 degrees C, making them potential candidates for applications in optical data storage, sensing, and other multifunctional photonic technologies.
Article
Materials Science, Multidisciplinary
Tao Wang, Fenglei Sun, Zike Jiang, Jing Wang, Yanyan Ma, Haitao Lin, Hongmin Lv, Shanshan Xu, Jinhua Li, Guangjun Zhou
Summary: The study developed NaGdF4:Yb,Tm@NaYF4:Yb,Eu@NaYF4:Yb,Nd@NaYF4 core-triple shell (CTS) UCNPs as fluorescent materials for ratiometric pH measurement under 808 nm excitation, showing high sensitivity and accuracy. Owing to the strong luminescence and additional red emission of CTS UCNPs, the sensor exhibits a high signal-to-noise ratio and can eliminate autofluorescence signals, ensuring accurate pH determination and promoting commercial feasibility.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Chemistry, Inorganic & Nuclear
Zexin Li, Fenglei Sun, Haining Song, Haifeng Zhou, Yifei Zhou, Zhenlei Yuan, Peng Guo, Guangjun Zhou, Qianqian Zhuang, Xiaoqiang Yu
Summary: Lead-free double perovskite quantum dots were synthesized with white light emission properties, and their luminescence performance and stability were improved by Bi doping and SiO2 coating.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Multidisciplinary
Haining Song, Yifei Zhou, Zexin Li, Haifeng Zhou, Fenglei Sun, Zhenlei Yuan, Peng Guo, Guangjun Zhou, Xiaoqiang Yu, Jifan Hu
Summary: A dual-function sensor utilizing the inner filter effect (IFE) was designed to detect Sn(ii) and ascorbic acid (AA) by quenching the green light emission of UCNPs@PAA with Fe(ii)-1,10-phenanthroline. The detection limits for Sn(ii) and AA were found to be 1.08 μM and 0.97 μM, respectively, with a linear relationship between quenching efficiency and concentration. Additionally, the sensor demonstrated the ability to detect Sn(ii) and AA in tap and spring water.