Article
Chemistry, Physical
Maohui Yuan, Kai Han, Linxuan Wang, Xu Yang, Zining Yang, Hongyan Wang, Xiaojun Xu
Summary: The introduction of appropriate Cu2+ ions into LiYF4:Yb/Er microcrystals enables the generation of highly thermally stable upconversion luminescence (UCL) for temperature sensing applications. The doping of Cu2+ ions efficiently adjusts and enhances UCL, extending the thermal quenching temperature range. These highly thermally stable microcrystals can detect temperature over a wide range and exhibit excellent thermometer performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Yang Wei, Yue Pan, Enlong Zhou, Ze Yuan, Hao Song, Yilin Wang, Jie Zhou, Jiahui Rui, Mengjiao Xu, Lixin Ning, Zhanning Liu, Hongyu Wang, Xiaoji Xie, Xiaobin Tang, Haiquan Su, Xianran Xing, Ling Huang
Summary: Despite extensive efforts, little progress has been made in combating thermal quenching in luminescent materials. This study demonstrates that controlled annealing can form Frenkel defect in Sc-2(WO4)(3):Ln (Ln=Yb, Er, Eu, Tb, Sm), which acts as an energy reservoir and transfers the stored excitation energy to Ln(3+) upon heating. This discovery opens up new avenues for reliable generation of high-temperature luminescence.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Optics
Peng LI, Zhen Zhang, Ziyi Xu, Haiqin Sun, Qiwei Zhang, Xihong Hao
Summary: In this study, a novel strategy is proposed to enhance the low-temperature sensing properties by controlling the photochromic reaction process in Na0.5Bi2.5Ta2O9: Er/Yb samples. The maximum relative sensitivity reaches up to 5.99% K-1 at cryogenic temperature of 153 K, and after irradiation with a commercial laser of 405 nm for 30 s, the relative sensitivity is increased to 6.81% K-1. The improvement is attributed to the coupling of optical thermometric and photochromic behavior at elevated temperatures, offering a new avenue to improve the thermometric sensitivity in photo-stimuli response photochromic materials.
Article
Spectroscopy
D. Stefanska, A. Kabanski, M. Adaszynski, M. Ptak, R. Lisiecki, N. Staroscik, J. Hanuza
Summary: The structural and spectroscopic properties of Sc2(MoO4)3 molybdate doped with different concentrations of Cr3+ ions were investigated at temperatures ranging from 80 to 300 K. The samples were prepared using hydrothermal and solid-state reaction methods. The influence of synthesis conditions and the molybdenum source on the structural properties was studied using X-ray diffraction, IR, and Raman techniques. The optical properties of Sc2(MoO4)3 samples doped with different concentrations of Cr3+ ions were also studied, with a focus on the broadband near-infrared luminescence spectra generated from the 4T2 and 2E levels of Cr3+ ions.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Nanoscience & Nanotechnology
Rashmi Joshi, Sourav Patra, Manas Srivastava, Bheeshma Pratap Singh, Avik Chakraborty, Sandeep Balu Shelar, Rubel Chakravarty, Sudipta Chakraborty, Raghumani Singh Ningthoujam
Summary: Nearly monodispersed NaGdF4/Ho-Yb upconversion nanoparticles with biocompatible mesoporous silica coating were synthesized. These nanoparticles exhibit red and green bands in the visible range upon excitation at different wavelengths of light. The potential applications of these nanoparticles as drug carriers and therapeutic radionuclide carriers were demonstrated.
ACS APPLIED NANO MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Bina Chaudhary, Yuwaraj K. Kshetri, Dhani Ram Dhakal, Soo Wohn Lee, Tae-Ho Kim
Summary: Host materials play a crucial role in achieving efficient photon upconversion and downshifting luminescence. In this study, Yb/Ho-doped CaSiO3 wollastonite phosphors were demonstrated as efficient red-emitting upconversion phosphors. The synthesized samples exhibited strong red upconversion emission and near-infrared downshifting emission upon 980 nm excitation. The energy transfer upconversion from Yb to Ho ions was found to be responsible for the efficient upconversion and downshifting phenomenon.
PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL
(2022)
Article
Chemistry, Multidisciplinary
Yapai Song, Renrui Sun, Guotao Sun, Yao Xie, Lining Sun
Summary: This article presents a new type of core-shell-shell (CSS) lanthanide-doped nanocrystals with multi-stimuli-responsive and multimode emission properties. By utilizing self-excited Er3+ and Ce3+ sensitized mechanisms, both Stokes and anti-Stokes processes are achieved in the same nanocrystals under excitation wavelengths of 1532, 980, and 254 nm. These unique CSS nanocrystals are then utilized for multidimensional information encoding, demonstrating high-level information coding capability and security. This work provides a powerful idea for information encoding security designs based on multimode luminescence materials.
CHEMISTRY-AN ASIAN JOURNAL
(2022)
Article
Chemistry, Inorganic & Nuclear
Chengyu Zhuo, Zeyu Lyu, Dashuai Sun, Sida Shen, Taixing Tan, Shuai Wei, Zhijun Li, Pengcheng Luo, Hongpeng You
Summary: Na2MgScF7 (NMSF) was synthesized for the first time through hydrothermal and high-temperature solid-state reactions. The NMSF crystalizes in the space group Imma, with the cell parameters a = 10.40860(18), b = 7.32804(12), c = 7.52879(11) angstrom, alpha = beta = gamma = 90 degrees, and V = 574.256(24) angstrom(3). Doping with Tb3+ or Eu3+ ions allows for yellow-green or red emission in NMSF-based phosphors, respectively. In addition, upconversion emission can be achieved by doping with Yb3+-Er3+, Yb3+-Tm3+, Yb3+-Ho3+, or Er3+. The synthesized NMSF:Er3+ phosphor exhibits green upconversion emission at 980 nm excitation and red emission at 1532 nm excitation.
DALTON TRANSACTIONS
(2023)
Article
Materials Science, Multidisciplinary
Pengxiang Pei, Yongqing Bai, Junxia Su, Yuzhu Yang, Weisheng Liu
Summary: This study reports a highly integrated multifunctional material that can achieve color-tunability, tunable excitation patterns, and quadrimodal emission modes. It is suitable for producing elastomer films with multidimensional information encryption and anticounterfeiting capabilities.
SCIENCE CHINA-MATERIALS
(2022)
Article
Chemistry, Physical
Christian Wurth, Bettina Grauel, Monika Pons, Florian Frenzel, Philipp Rissiek, Kerstin Rucker, Markus Haase, Ute Resch-Genger
Summary: This study systematically analyzed the dependence of UC luminescence quantum yield on the dopant concentration in solid NaYF4:Yb,Er/NaYF4:Lu upconversion core/shell nanocrystals. The results showed that high Yb3+ concentrations can increase the particle absorption cross section and brightness of UCNC, while high Er3+ concentrations can decrease the luminescence brightness.
Article
Nanoscience & Nanotechnology
Hanyu Xu, Mochen Jia, Zhiying Wang, Yanling Wei, Zuoling Fu
Summary: This study reports a novel high surface area dumbbell-shaped multilayer nanoparticle, which exhibits higher luminescence intensity than the traditional spherical core-shell structure. When rare earth ions are distributed in the first shell, the sensitivity of the luminescence nanothermometer is significantly increased, making it suitable for potential biological applications.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Ceramics
Satish Kumar Samal, Pushpendra, Jyoti Yadav, Boddu S. Naidu
Summary: Rare earth ions doped upconversion materials with exceptional luminescence properties were synthesized through a conventional co-precipitation method. The optimized upconversion emission was achieved with Er and Yb concentrations of 0.035 and 0.125 mol%, respectively in KBi(MoO4)2 nanomaterials. The temperature-dependent intensity ratio of upconversion emission bands was investigated, and the maximum absolute sensitivity was found to be 0.0123 K-1, indicating the potential application of this double molybdate as a luminescence-based temperature probe.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Yinghan Wang, Zhengce An, Zhengren Tao, Shuai Zhang, Xiaoyan Yang, Xiaojun Kuang, Shi Ye
Summary: This research investigates the antithermal quenching mechanism of upconversion luminescence in Sc2(MoO4)3: 9%Yb1%Er and proposes that the migration of defects and/or ions due to thermally activated movement is the cause. A second-order phase transition induced by oxide-ion migration at around 573 K is observed, leading to changes in the thermodynamics and kinetics of the host lattice and a suppression of nonradiative decay rate. The proposed model suggests that dynamic defects no longer act as quenching centers.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Spectroscopy
Hongqi Chen, Wen Wang, Changchun Ji, Lun Wang
Summary: The water-solubility of core-shell upconversion nanoparticles was improved by a ligand exchange reaction; a sensing system for detection of H2S was successfully constructed with a wide linear detection range and low detection limit; the dye-sensitized nanoprobe showed satisfactory performance in real sample analysis.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Chemistry, Multidisciplinary
Venkata N. K. B. Adusumalli, Song Yeul Lee, Akash Gupta, Yong Il Park
Summary: In this study, luminescent nanocrystals (NCs) with the ability to emit multiple colors were engineered using the thermal decomposition method. The core-shell and core-shell-shell NCs exhibited blue and green emissions when sensitized by specific ions and under laser irradiation. By introducing an active inert layer as a shell, the upconversion luminescence efficiency of the NCs was improved. Furthermore, functionalization of the NC surface allowed for the development of stable fluorescent inks, which were used to print invisible patterns on paper that exhibited different colors under specific excitation sources. This demonstrates the potential of these dual-mode excitable multi-shell NCs for anticounterfeiting applications.
MATERIALS TODAY CHEMISTRY
(2023)
Review
Materials Science, Multidisciplinary
Zhuo Li, Shan Lu, Xingjun Li, Zhuo Chen, Xueyuan Chen
Summary: The growing crisis of antibiotic resistance is driving the need for advanced and sustainable antibacterial strategies. Lanthanide-doped upconversion nanoparticles (UCNPs) with unique photophysical properties have been innovatively explored for bacterial detection and therapy, showing promise in addressing challenges in the post-antibiotic era. This review highlights the interface engineering for bacteria-targeted UCNP nanoplatforms, discusses the principles and advantages of various upconversion detection strategies, and summarizes the latest progress in UCNP-based antibacterial applications, particularly in deep-tissue infection imaging and therapy. Concerns and future efforts for practical applications are also addressed in this review.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Ying Li, Zhepu Shi, Bao Qiu, Jialiang Zhao, Xiao Li, Yibin Zhang, Tingting Li, Qingwen Gu, Jing Gao, Zhaoping Liu
Summary: To tackle the capacity fade and safety concerns associated with oxygen redox in Li-rich layered cathodes, an integrated strategy involving interlayer regulation and delocalization of Li2MnO3-like domain is proposed. The controllable interlayer through atomic layer deposition minimizes lattice mismatch and prevents structural degradation during cycling, while compositional control of the Li2MnO3-like domain inhibits oxygen release and enhances the thermal stability of the electrode. The optimized cathode material demonstrates a capacity retention of 94.0% after 200 cycles and a multilayer pouch cell exhibits an outstanding cycling performance with 80.4% capacity retention after 710 cycles, along with verified safety features.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Shuaiqi Wang, Shangwei Feng, Renfu Li, Jiance Jin, Junyan Wu, Wei Zheng, Zhiguo Xia, Xueyuan Chen, Qidan Ling, Zhenghuan Lin
Summary: 2D organic-inorganic hybrid perovskites (OIHPs) have advantages in optoelectronics due to their high luminescent stability and good solution processability. However, the low luminescence efficiency of 2D perovskites is caused by thermal quenching and self-absorption of excitons. In this study, a 2D Cd-based OIHP with weak red phosphorescence is reported. The doping of Mn2+ enables superefficient red-light emission by inducing multiexciton generation and Dexter energy transfer.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xiaorong Song, Mei Li, Siqi Ni, Kaidong Yang, Shihua Li, Renfu Li, Wei Zheng, Datao Tu, Xueyuan Chen, Huanghao Yang
Summary: In this study, a novel urinary time-resolved PL (TRPL) diagnosis strategy was developed using synthetic biomarkers called europium complexes of diethylenetriaminepentaacetic acid (Eu-DTPA) and activatable nanoprobes. The TRPL of Eu-DTPA in the enhancer was used to detect kidney and liver injuries in mice, which cannot be achieved by traditional blood assays.
Article
Nanoscience & Nanotechnology
John Holoubek, Haodong Liu, Qizhang Yan, Zhaohui Wu, Bao Qiu, Minghao Zhang, Sicen Yu, Shen Wang, Jianbin Zhou, Tod A. Pascal, Jian Luo, Zhaoping Liu, Ying Shirley Meng, Ping Liu
Summary: This study demonstrates the reversible performance of a localized-high-concentration electrolyte (LHCE) based on ether solvents for Li||LMR batteries, improving the cycling performance and cathode-electrolyte interphase chemistry.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Environmental
Tianyong Guan, Yan Liu, Jiayao Li, Mingmao Chen, Xiaoying Shang, Ping Hu, Renfu Li, Hang Gao, Datao Tu, Wei Zheng, Xueyuan Chen
Summary: This research proposes a supramolecular hydrogel responsive to near-infrared circularly polarized light (NIR-CPL) with high ground state chirality and intense upconverted circularly polarized luminescence activity. By effectively attaching methylene blue loaded lanthanide upconversion nanoparticles to helical nanofibers, reactive oxygen species production can be triggered by NIR-CPL, resulting in improved photodynamic performance and efficient tumor inhibition.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Hongchao Yang, Renfu Li, Ziqiang Sun, Yejun Zhang, Hongbing Zhan, Xueyuan Chen, Qiangbin Wang
Summary: In this study, a series of mercaptoundecanoic acid-coated silver sulfide (Ag2S/MUA) quantum dots with different emission characteristics were synthesized. It was found that constructing a hydrophobic interface on the surface of Ag2S QDs could significantly enhance their photoluminescence intensity and lifetime, as well as suppress the energy transfer to water, providing a deeper understanding of the photophysical mechanisms of QDs.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Xiao-Fang Duan, Li-Peng Zhou, Hao-Ran Li, Shao-Jun Hu, Wei Zheng, Xin Xu, Ruiling Zhang, Xueyuan Chen, Xiao-Qing Guo, Qing-Fu Sun
Summary: Upconversion is a promising anti-Stokes-like optical process with potential applications in diverse fields. However, current known mechanisms for upconversion are mainly based on direct energy transfer between metal ions, which limits the design and tunability of the structures and properties. By synthesizing lanthanide-organic complexes with assembly induced excited-multimer states, we demonstrate a new strategy for designing upconversion materials that is crucial for exploiting the photofunctions of multicomponent lanthanide-organic complexes.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Meiran Zhang, Ping Huang, Wei Zheng, Xiaorong Song, Xiaoying Shang, Wen Zhang, Dengfeng Yang, Xiaodong Yi, Xueyuan Chen
Summary: This study reports a strategy for the controlled synthesis of aliovalent Ln(3+)-doped KMgF3 UCNPs using the pyrolysis of KHF2. The UCNPs effectively protect Ln(3+) from luminescence quenching by surface and internal OH- defects and enhance upconversion luminescence efficiency.
Article
Chemistry, Physical
Yunqin Zhang, Yang Cao, Yan Liu, Yingjie Yang, Mingmao Chen, Hang Gao, Lushan Lin, Xueyuan Chen
Summary: Enzyme-responsive nanomaterials have great potential in the prognosis or diagnosis of disease biomarkers. However, there are various obstacles that hinder their practical application, including autofluorescence interference, poor monodispersity, uncontrollable size and morphology, low optical stability, and biotoxicity. In this study, a novel strategy using lanthanide nucleotide nanoparticles was proposed for reliable and precise detection of the enzyme disease biomarker alkaline phosphatase (ALP). The nanoparticles showed improved monodispersity and uniformity, and demonstrated superior selectivity and sensitivity for ALP detection in complicated serum samples.
Article
Chemistry, Multidisciplinary
Yang Zhou, Nan He, Zheshuai Lin, Xiaoying Shang, Xueyuan Chen, Yanqiang Li, Weiqi Huang, Maochun Hong, Sangen Zhao, Junhua Luo
Summary: This study reports a non-pi-conjugated molecular crystal, NH3BH3, which achieves a subtle balance between second-harmonic generation, bandgap, and birefringence. NH3BH3 exhibits a large second-harmonic generation response, deep-UV transparency, and moderate birefringence. It is considered a promising candidate for deep-UV nonlinear optical applications.
Article
Chemistry, Analytical
Fan Liu, Wusen Zhou, Xingjun Li, Zhuo Li, Shan Lu, Xiaoying Shang, Chong Tan, Ping Hu, Zhuo Chen, Xueyuan Chen
Summary: In this study, hybrid nanocomposites NaEuF4@TCPP were constructed, which can selectively quench Fe3+ ions and be applied for sensitive detection of Fe3+ ions in living cells. The lipo-coated NaEuF4@TCPP probes showed good biocompatibility and stability, making them suitable for real-time monitoring of Fe3+ ions in living cells.
Editorial Material
Materials Science, Multidisciplinary
Jin Xu, Guoqin Ma, Xueyuan Chen
SCIENCE CHINA-MATERIALS
(2023)
Review
Materials Science, Multidisciplinary
Jin Xu, Shaohua Yu, Xiaoying Shang, Xueyuan Chen
Summary: This review focuses on understanding the molecular origin of the atypical temperature dependence of bandgap in lead-halide perovskites with corner-sharing octahedra. The bandgap renormalization is attributed to lattice thermal expansion and electron-phonon interactions. Recent theoretical advances and structural engineering in perovskites for modulation of bandgap renormalization are discussed. Future research directions for a better understanding and control of bandgap renormalization in perovskites are also suggested.
ADVANCED PHOTONICS RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Shaoan Zhang, Zhenzhang Li, Zaijin Fang, Bao Qiu, Janak L. L. Pathak, Kaniyarakkal Sharafudeen, S. Saravanakumar, Zhanjun Li, Gang Han, Yang Li
Summary: Recently, a modified metal halide perovskite has been designed to enhance the photoluminescence efficiency and stability under blue light excitation. This material has been successfully applied in laser-driven liquid crystal displays, demonstrating excellent color gamut, illuminance intensity, and energy consumption reduction, especially in large-screen outdoor displays.
MATERIALS HORIZONS
(2023)
