Article
Chemistry, Analytical
Mortaza Iranifam, Asghar Haggi, Hossein Akhteh, Mojtaba Amini, Haider A. J. Al Lawati
Summary: Rod-like CeO2 nanoparticles were synthesized as a catalyst to enhance the chemiluminescence intensity of the luminol-O-2 reaction. The nanoparticles were then used to determine the concentrations of OXP and AA in pharmaceutical formulations.
ANALYTICAL SCIENCES
(2022)
Article
Chemistry, Analytical
Chang Liu, Yunyu Zhang, Peihua Wang, Aiping Fan
Summary: It was found that 2,3-dimethyl maleic acid (DMMA) can enhance the chemiluminescent reactions of luminol-H2O2, with the strongest enhancement observed using polyethyleneimine-templated gold nanoclusters (PEI-Au NCs) as the catalyst. The addition of DMMA increased the CL signal of the PEI-Au NCs-catalyzed reaction by about 630-fold, resulting in a flash-type CL profile. Mechanism studies revealed that the luminophore in the excited state was 3-aminophthalate anions (3-APA*), and superoxide radical (O-2(center dot-)) played a crucial role in the CL process. Under optimized conditions, the detection limit of PEI-Au NCs was significantly improved with the addition of DMMA. The catalytic activity of biotinylated PEI-Au NCs in the DMMA-enhanced luminol system was similar to PEI-Au NCs, indicating their potential for bioanalysis platforms. This research explores the application of the DMMA-enhanced luminol-H2O2 system to the detection of sequence-specific DNA related to hepatitis B virus (HBV), achieving superior sensitivity compared to reported methods.
Article
Chemistry, Physical
Hong Li, Yang Zhou, Jianxiu Du
Summary: Ascorbic acid can be used as an efficient coreactant for luminol chemiluminescence reaction to determine its concentration directly. The method shows good linear response and selectivity.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2022)
Article
Spectroscopy
Mortaza Iranifam, Mahtab Toolooe Gardeh Rasht, Haider A. J. Al Lawati
Summary: A new CL method utilizing CuS nanoparticles-luminol-O2 system was developed to measure PCM and VAN concentrations. Both drugs decreased CL intensity, with detection limits of 2.9 x 10(-5) mol L-1 for PCM and 8.9 x 10(-6) mol L-1 for VAN.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Spectroscopy
Wensong Yao, Xiaomin Zhang, Zhen Lin
Summary: The study demonstrates that sodium molybdate significantly enhances the chemiluminescent reaction between hydrogen peroxide and luminol, providing a convenient and sensitive method for hydrogen peroxide determination, as well as potential application for glucose detection when combined with glucose oxidase. This finding suggests promising applications of sodium molybdate in analytical chemistry.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Chemistry, Analytical
Jaeyoon Kim, Hanseok Yi, Daeho Jeong, Dongil Lee, Won-Yong Lee
Summary: This study investigated the electrogenerated chemiluminescence behavior of luminol on a glassy carbon electrode modified with gold nanocluster-graphene-Nafion composite films in neutral aqueous solution. The composite films showed enhanced electrocatalytic activity towards the reduction of molecular oxygen, resulting in a strong cathodic luminol ECL response. Addition of hydrogen peroxide led to a decrease in the cathodic ECL response related to oxygen reduction and a new ECL response related to the electrochemical reduction of hydrogen peroxide was observed. The ECL response was linear with the concentration of hydrogen peroxide in the range of 1.0 x 10(-8) M to 4.0 x 10(-6) M with a detection limit of 2.21 x 10(-9) M in neutral aqueous solution.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Electrochemistry
Xun Zou, Yuying Chen, Xiangfei Song, Mingyan Sun, Zhiyuan Zheng, Peiru Lin, Jia Tao, Peng Zhao
Summary: In this paper, cobalt-modified nitrogen doping carbon aerogels (Co-NCA) with three dimensional pores were synthesized and used as electrode modifiers for dopamine detection. The Co-NCA modified electrode showed larger electrochemically active area, wider linear range, and lower detection limit. Additionally, the electrode exhibited good repeatability and stability.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Chemistry, Analytical
Yuhui Huang, Rui Zou, Yanjun Lin, Chao Lu
Summary: The study focuses on enhancing electrochemiluminescence (ECL) signals through modifying spherical Au nanoparticles supported by oxygen vacancy-rich CoAl-layered double hydroxide (LDH-O-v). The strong electronic metal-support interaction (EMSI) between Au nanoparticles and LDH-O-v significantly improves the luminol ECL signals, indicating potential for highly efficient ECL systems utilizing intrinsic catalytic activity of Au nanoparticles. This approach not only increases electron transfer efficiency but also opens up new possibilities for utilizing metal nanocatalysts in ECL signal amplification.
ANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Analytical
Chao Wang, Mohamed Ibrahm Halawa, Baohua Lou, Wenyue Gao, Jianping Li, Guobao Xu
Summary: The study discovered a sensitive method for detecting ascorbic acid (AA) using the chemiluminescence reaction between luminol and artemisinin (ART). This method was successfully applied to detect AA in vitamin C tablets and showed good recovery rates and stability.
Article
Chemistry, Analytical
Huairong Zhang, Yong Liu, Mei Yao, Wenxiu Han, Shusheng Zhang
Summary: Cathodic electrochemiluminesence (ECL) microscopy based on luminol analog L012 utilizes multiwalled carbon nanotubes (MWCNTs) as coreactant accelerators to convert oxygen and H2O2 into reactive oxygen species. The produced ROS oxidizes L012 to emit bright cathodic ECL illumination, enabling the imaging of nanotubes and nucleolin on tumor cells. By modifying MWCNTs with AS1411 aptamers, label-free ECL imaging of nucleolin on plasma membranes was achieved, providing a universal approach in single nanomaterial and single-cell imaging.
ANALYTICAL CHEMISTRY
(2023)
Article
Nanoscience & Nanotechnology
Masih Darbandi, Maryam Sadat Alahmadi, Mohammad Amjadi, Tooba Hallaj
Summary: Mesoporous cobalt oxides have important applications due to their exceptional properties. In this study, mesoporous Co3O4 NPs with different porosity were successfully synthesized through a sonochemical process. The synthesized NPs were characterized using XRD, BET, and TEM. The catalytic effect of the Co3O4 NPs in the luminol-H2O2 chemiluminescence system was studied, and the system was used to detect and measure H2O2 and glucose under optimal conditions. The proposed method showed a good linear relationship and excellent LOD for both H2O2 and glucose.
Article
Chemistry, Analytical
Lucia Simona Ferraraccio, Donatella Di Lisa, Laura Pastorino, Paolo Bertoncello
Summary: A simple procedure for incorporating enzymes into alginate hydrogels was reported, and electrochemiluminescence was used for detecting the enzymatic reactions. The immobilized enzymes showed maintained activity and good stability within the alginate hydrogels for up to 28 days. The sensitivity and selectivity of the encapsulated enzymes were demonstrated through testing real samples.
ANALYTICAL CHEMISTRY
(2022)
Article
Spectroscopy
Mortaza Iranifam, Zahra Dadashi
Summary: The research demonstrates that NiS nanoparticles can be used as a catalyst in chemiluminescence reactions to enhance specific reactions' luminescence. A new chemiluminescence method was developed for the measurement of vancomycin, with a good linear range and detection limit.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Chemistry, Analytical
Yunyu Zhang, Shanshan Li, Rushi Liang, Meilin Li, Feiqian Wang, Aiping Fan
Summary: A turn-on chemiluminescence analysis platform was established for the detection of alkaline phosphatase (ALP) activity in human serum using two-dimensional Fe-BTC as the signaling probe. The 2D Fe-BTC reacted with ascorbic acid to catalyze the luminol chemiluminescence reaction, resulting in a strong signal. The assay showed excellent sensitivity and a linear range of detection for ALP in human serum after a simple dilution process without any pretreatment.
ANALYTICAL SCIENCES
(2023)
Article
Chemistry, Analytical
Daler R. Dadadzhanov, Igor A. Gladskikh, Mikhail A. Baranov, Tigran A. Vartanyan, Alina Karabchevsky
Summary: Chemiluminophores generate wide-band light emission through a chemical reaction without external light source. Plasmonic nanoparticles can enhance chemiluminescence quantum yield by accelerating radiative decay rate, while the catalytic action of metallic surface can increase the chemical reaction rate. Using an inert spacer layer on a silver metasurface may favor an electrodynamic mechanism for moderate chemiluminescence enhancement.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Multidisciplinary
Xiao-Long Zhang, Peng-Peng Yang, Ya-Rong Zheng, Yu Duan, Shao-Jin Hu, Tao Ma, Fei-Yue Gao, Zhuang-Zhuang Niu, Zhi-Zheng Wu, Shuai Qin, Li-Ping Chi, Xingxing Yu, Rui Wu, Chao Gu, Cheng-Ming Wang, Xu-Sheng Zheng, Xiao Zheng, Jun-Fa Zhu, Min-Rui Gao
Summary: A simple cation exchange approach was used to produce Turing-type Ag2Se on CoSe2 nanobelts, resulting in a material highly effective in catalyzing the oxygen evolution reaction. The intrinsic OER activity correlates linearly with the length of Ag2Se-CoSe2 interfaces, indicating that these Turing-type interfaces are the active sites for OER. The excellent OER performance is attributed to the optimized adsorption energies for critical oxygen-containing intermediates at the unconventional interfaces, as shown by X-ray absorption and computational simulations.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Yang Zhu, Wenyu Wang, Junjie Cheng, Yunteng Qu, Yi Dai, Manman Liu, Jianing Yu, Chengming Wang, Huijuan Wang, Sicong Wang, Chao Zhao, Yuen Wu, Yangzhong Liu
Summary: The Mn/PSAE constructed here demonstrates significant catalytic activity in weakly acidic tumor environments, which enables the generation of sufficient reactive oxygen species (ROS) through a series of cascade reactions to effectively kill tumor cells.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Kun Chen, Keke Mao, Yu Bai, Delong Duan, Shuangming Chen, Chengming Wang, Ning Zhang, Ran Long, Xiaojun Wu, Li Song, Yujie Xiong
Summary: Interfacial engineering on a rationally designed heterostructure has been utilized to enhance the intrinsic activity of the anodic oxygen evolution reaction (OER). A VPO4-Ni2P heterostructure has been constructed on a nickel foam using a co-phosphorization approach, with phosphate acting as an electronic modifier for the Ni2P electrocatalyst. This electronic manipulation rationalizes the chemical affinities of various oxygen intermediates, resulting in significantly reduced energy barriers and improved OER performance.
CHINESE CHEMICAL LETTERS
(2022)
Article
Engineering, Chemical
Yuzhen Wu, Lei Shen, Changxing Zhang, Hong Gao, Jun Chen, Ling Jin, Peng Lin, Hexin Zhang, Youyi Xia
Summary: The study introduces a novel PPY/BTA hydrogel with enhanced solar energy conversion efficiency and water evaporation rate by doping with hydrophilic BTA, showing potential applications in wastewater regeneration and seawater desalination.
Article
Chemistry, Multidisciplinary
Hao-Yu Zhao, Jin Huang, Jie Zhou, Li-Feng Chen, Chengming Wang, Yuxia Bai, Jun Zhou, Yu Deng, Wei-Xu Dong, Yan-Song Li, Shu-Hong Yu
Summary: Inspired by the structure of penguin feathers and polar bear hairs, a bionic solar evaporator (BSE) with macroporous skeleton and macro patulous channels has been designed for efficient water transportation and rapid steam extraction. The 3D hierarchical isotropic truss structures enable omnidirectional light absorption and the bimodal pores facilitate ion diffusion to suppress salt deposits. The BSE exhibits high efficiency and salt resistance, making it suitable for practical sewage purification and desalination applications.
Article
Chemistry, Physical
Meilin Duan, Canyu Hu, Delong Duan, Ruitian Chen, Chengming Wang, Di Wu, Tong Xia, Hengjie Liu, Yitao Dai, Ran Long, Li Song, Yujie Xiong
Summary: Photocatalysis provides a new avenue for organic synthesis. A Cu-doped photocatalyst has been successfully constructed with high catalytic activity and stability.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Multidisciplinary
Zhongxin Ping, Hao Fang, Kunpeng Wang, Hui Zhang, Shikuo Li, Jun Chen, Fangzhi Huang
Summary: Converting renewable solar energy into manageable thermal energy is important, but integrating multifunctional solar-to-heat coating on various substrates and achieving large-scale manufacture is challenging. In this study, Cl-doped PEDOT coating is successfully created on multiple substrates using oCVD, enhancing near-infrared absorption and hydrophilicity. The Cl-PEDOT coating has advantages of universality, scalability, low-cost, high efficiency, and stability, and exhibits reinforced evaporation performance for solar steam generation. The study also demonstrates the possibility of using structural design to optimize evaporator performance and achieve solar-driven heating/dehumidification and crude-oil recovery. oCVD is a simple and straightforward method for engineering lightweight and thermally insulating polymers into multifunctional solar-to-thermal composites for diverse solar-driven applications.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Biochemistry & Molecular Biology
Mei Luo, Jing-Cheng Zhang, Hao Yin, Cheng-Ming Wang, Lan Xie, Kang-Po Li, Masuo Goto, Susan L. Morris-Natschke, Kuo-Hsiung Lee, Jia-Hai Zhang, Yan-Min Zhang, Xue-Ru Zhang
Summary: Six new Pd(II), Pt(II) and Ag(I) complexes were synthesized and characterized. These complexes exhibited cytotoxic effects against human tumour cell lines, including a multidrug-resistant subline. DFT calculations showed excellent bioactivity of complex 1 against A549, MDA-MB-231, and KB cells. In vivo experiments on nude mice with human lung adenocarcinoma cells demonstrated significant reduction in tumour volume, relative tumour volume, and relative tumour proliferation rate T/C in the cisplatin group and compound 1 (complex 1) group.
JOURNAL OF INORGANIC BIOCHEMISTRY
(2023)
Article
Engineering, Environmental
Qianqian Zhou, Peidong Hong, Xu Shi, Yulian Li, Ke Yao, Wanqi Zhang, Chengming Wang, Junyong He, Kaisheng Zhang, Lingtao Kong
Summary: In this study, a novel Cu2O/Cu@MXene composite with a nanoconfinement structure was designed to effectively activate peroxymonosulfate (PMS) for the degradation of tetracycline (TC). Results showed that the MXene could fix the Cu2O/Cu nanoparticles and suppress their agglomeration, leading to a removal efficiency of 99.14% for TC within 30 minutes. The outstanding catalytic performance was attributed to the promotion of TC adsorption and electron transmission by the MXene. Furthermore, the degradation efficiency of TC remained over 82% after five cycles, and two specific degradation pathways were proposed based on the LC-MS analysis. This study provides valuable insights for suppressing the agglomeration of nanoparticles and expands the application of MXene materials in environmental remediation.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Engineering, Environmental
Zhen He, Qiaohui Duan, Lingwen Liao, Chengming Wang
Summary: Jagged Au-Pt bimetallic nanowires with abundant twin boundaries have been synthesized, and the lattice strain and electronic structures of Pt in the twin-rich nanowires have been tuned, resulting in the modulation of alcohol oxidation reaction (AOR) activities. The AuPt3 nanowires exhibit the highest mass activity for ethanol and methanol oxidation reactions, surpassing other nanowires and commercial Pt/C catalysts. The structure-activity correlation for AOR follows a volcano-shaped curve with increasing Pt ratios. This work provides a simple yet effective method to synthesize twin-rich bimetallic nanostructures with controlled lattice strain and illustrates their structure-dependent properties.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Zhen He, Qiaohui Duan, Chengming Wang, Lingwen Liao
Summary: Penta-twinned Pd nanowires with abundant high-energy atomic steps have been synthesized and they exhibit superior catalytic activity for ethanol and ethylene glycol oxidation reactions. These stepped Pd nanowires show enhanced catalytic performance and stability compared to commercial Pd/C. The mass activities of stepped Pd nanowires for EOR and EGOR are 6.38 and 7.98 A mg(Pd)(-1), respectively, which are 3.1 and 2.6 times higher than Pd nanowires enclosed by (100) facets.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Polymer Science
Xuejiao Zhang, Wenjie Zou, Li Ding, Jun Chen
Summary: This study investigated the adsorption performance of a composite hydrogel adsorbent for hexavalent chromium (Cr(VI)). The results showed that the adsorbent had a high adsorption capacity and strong stability, suggesting its potential application in wastewater treatment.
Article
Materials Science, Multidisciplinary
Guang Yang, Zecheng Gao, Shenghua Duan, Cheng Chen, Taige Liu, Zihan Qing, Chenming Wang, Xinyu Zhang
Summary: This study proposes an infrared broadband metamaterial absorber that exhibits strong infrared radiation absorption, an ultrathin structure, and a layered configuration. The absorber consists of graphene-Si3N4 films and has achieved high absorption rates in the wavelength range of 1-14μm. The absorption can be easily adjusted by varying the number of film layers or applying bias voltages. The absorber is capable of tolerating a wide range of incident angles and is polarization-independent. Furthermore, by adding superstructures to the incident surface, the absorber can achieve high average absorption and change the absorption peak. This design has significant implications for the development of infrared radiation absorption techniques.
OPTICAL MATERIALS EXPRESS
(2023)
Article
Chemistry, Physical
Weiwei Wang, Jinyan Cai, Hao Wan, Wenlong Cai, Zixuan Zhu, Chengming Wang, Tiansheng Zhou, Zhiguo Hou, Yongchun Zhu, Yitai Qian
Summary: In this study, N-NiCoO2/CoO arrays on conductive carbon cloth were designed as bifunctional catalysts for lithium-oxygen batteries. The introduction of N promoted electron redistribution and enhanced the affinity of intermediates, resulting in improved cycling capability and low overpotential. DFT calculations revealed the synergistic role of NNCO/CC in the ORR and OER processes. This method provides new possibilities for functional cathode design in Li-O-2 cells.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Materials Science, Multidisciplinary
Tian Shi, Hui Wang, Lei Li, Zhi Zhao, Chengming Wang, Xiaodong Zhang, Yi Xie
Summary: Covalent organic frameworks (COFs) are functional porous crystalline polymers with potential applications in heterogeneous catalysis. This study proposes a practical approach to enhance the photostability and catalytic activities of COFs, using protonation treatment on a prototypical system g-C18N3-COF.
Article
Optics
R. B. Adamov, G. A. Melentev, I. V. Sedova, S. V. Sorokin, G. V. Klimko, I. S. Makhov, D. A. Firsov, V. A. Shalygin
Summary: This study investigates the THz luminescence in doped nanostructures with GaAs/AlGaAs quantum wells under interband optical pumping. The results show that the spatial separation of donors and acceptors can greatly enhance the integrated intensity of THz emission.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Yanru Li, Lei Zhong, Sha Jiang, Yutong Wang, Binyao Huang, Guotao Xiang, Li Li, Yongjie Wang, Chuan Jing, Xianju Zhou
Summary: In this study, a ratiometric luminescent thermometry based on dual-emission centers was developed using co-doped CaNb2O6 phosphors with Bi3+ and Pr3+. The obtained samples exhibited good thermosensitive and thermochromic characteristics, with a maximum absolute sensitivity of 0.09 K-1 @ 528 K and a maximum relative sensitivity of 2.17 % K-1 @ 453 K.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Yujing Gong, Yeqing Wang, Zhiyuan Wang, Yijian Sun, Yi Yu
Summary: Single crystals of Dy3+ single-doped and Dy3+/Tb3+ co-doped CaYAlO4 were grown and analyzed. The incorporation of Tb3+ resulted in increased absorption and emission cross sections. The fluorescence lifetimes and branching ratios of the yellow emission were affected by the presence of Tb3+. The deactivation effect of Tb3+ ions and energy transfer mechanism were also discussed.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Lu Chen, Zhuangzhuang Ma, Jian Chen, Wang Guo
Summary: This study focuses on enhancing the thermal robustness of phosphor converter materials by preparing composite ceramics of YAG:Ce combined with high-thermal-conductivity MgO. The composite ceramics showed high density and thermal conductivity at the optimum temperature of 1400℃. Stable laser-driven white light was obtained under blue laser excitation.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Yuwei Wu, Chunhui Niu, Lei Wang, Mingqing Yang, Shiyu Zhang
Summary: Er3+-doped germanate-tellurite glasses were prepared and their structure, luminescent, and temperature-sensing properties were studied. The glass exhibited large values of O2 and O6 and its luminescence intensity varied with temperature.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Kensei Ichiba, Takumi Kato, Kenichi Watanabe, Yuma Takebuchi, Daisuke Nakauchi, Noriaki Kawaguchi, Takayuki Yanagida
Summary: In this study, Eu-doped YVO4 single crystals with different concentrations were fabricated to evaluate their photoluminescence and scintillation properties. The results showed that the samples doped with Eu exhibited emission peaks due to 4f-4f transitions in PL and scintillation spectra. Based on the pulse height spectra, the light yield of the Eu-doped samples increased with increasing Eu concentration, while the afterglow level decreased.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Daiwen Xiao, Hei-Yui Kai, Anjun Huang, Menglin Song, Ka-Leung Wong, Peter A. Tanner
Summary: The emission spectra of Cs2NaEuCl6 nanoparticles synthesized by the hot injection method are explained. The dispersion of the nanoparticles in alkane solvents in the experiment allows the determination of the magnetic dipole radiative rate for the D-5(0) -F-7(1) channel in vacuum, which is in agreement with the calculated value.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Italia V. Barbosa, Geraldine Dantelle, Alain Ibanez, Lauro J. Q. Maia
Summary: The thermal response and luminescence properties of different oxide matrices were evaluated to design more accurate thermal probes. It was found that thermal probes emitting in BW-II provide better thermal sensing with higher signal-to-noise ratio. Additionally, doping Nd3+ in Y2O3 matrix maximizes luminescence intensity, making it a promising matrix for thermal sensing.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Xin Li, Yu Zhang, Hongrui Ren, Lunlong Xie, Yinsheng Di, Mengqing Han, Zhaohui Bai, Quansheng Liu, Liangliang Zhang, Jiahua Zhang
Summary: This study successfully prepared phosphor samples based on Ca3-xLuxSc2-xMgxSi3O12:Ce3+ and investigated their luminescence properties. With the increase in Lu-Mg concentration, the peak of the sample redshifted, but the thermal stability gradually decreased. The LD devices made from CLSMS:Ce3+ fluorescent materials showed a decrease in cyan-green light and an increase in red light as the Lu-Mg concentration increased.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Tim Pier, Julia Hopster, Thomas Juestel
Summary: This study investigates and reports on several samples of cerium-activated gallium-based garnet phosphors. The optimal activator concentration was found to be 1 atom-%. The size of non-emitting lanthanide ions and the molar concentration of cerium strongly influenced the crystal field splitting, which in turn shaped the excitation and emission wavelengths.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Guijie Zhao, Wei Shi, Xin Xin, Fengcai Ma, Yongqing Li
Summary: This study reveals for the first time the proton transfer pathways and changes in the photophysical properties of P-TNS with three intramolecular hydrogen bonds. The reaction mechanism and driving force for the proton transfer process are explained through analysis of potential energy surface, frontier molecular orbitals, and hydrogen bond parameters, among others.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Li He, Jinshu Huang, Zhengce An, Haozhang Huang, Yu Zhao, Kexin Zhong, Bo Zhou
Summary: In this study, we designed a NaYF4:Yb3+/Tm3+@NaYF4 core-shell nanostructure to achieve thermochromic upconversion and high thermal sensitivity. We found that the blue upconversion emission of Tm3+ decreased while the deep-red emission increased with elevating temperature. The sample also showed a gradual emission color change from blue to purplish-red, and the optimal relative sensitivity reached 2.79% K-1.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Rupesh A. Talewar
Summary: A series of Li2TiO3 phosphors doped with Mn4+ and codoped with Mn4+ and Er3+ were synthesized, which demonstrated the ability of Mn4+ ions to absorb UV-Vis photons and subsequently transfer energy to Er3+ ions, resulting in the emission of near-infrared light. These materials have the potential to enhance the absorption efficiency of Er3+-based luminescent materials.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Xingyuan Ma, Jianfeng Li
Summary: Carbon quantum dots (CQDs) with tunable photoluminescence properties have been synthesized using suitable carbon and dopant sources in an aqueous system. The synthesized CQDs exhibited blue, green, yellow, and red emissions, and solid-state luminescence was achieved through the preparation of solid-state fluorescent films and phosphors. This study provides important technical support for the future development of CQDs synthesis.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
De Bin Fu, Yang Bing Xu, Yu Teng Zhang, Shan Ting Liu, Xiao Fei Yang, Sheng Hua Liu
Summary: A pair of new chiral molecules, (S)-4 and (R)-4, have been designed and synthesized by introducing valine-containing groups at symmetrical positions on the periphery of an indolo[3,2-b]carbazole unit. These molecules exhibit aggregation-induced circular dichroism (AICD) properties in DMF/water mixtures, and in a mixture with 99% water fraction, they show strong, mirror-image, blue circularly polarized luminescence (CPL) signals.
JOURNAL OF LUMINESCENCE
(2024)
