Article
Optics
Weihao Wang, Quanfeng Li, Liyan Chen, Yanhui Wang, Rubing Zhong, Huiwan Dong, Yijun Qiu, Yifan Hu, Xiulian Zhang
Summary: The Ba2LaNbO6: Mn4+ phosphor was synthesized and its crystal structure was characterized. The luminescent spectra were used to calculate the values of Dq, Racah parameters B and C, and the nephelauxetic effect parameter beta(1) of Ba2LaNbO6: Mn4+. The temperature-dependent spectra showed the thermal quenching of Mn4+ emission in Ba2LaNbO6: Mn4+ phosphors. The fluorescence lifetime-based optical temperature measurement was analyzed. The results suggested that Ba2LaNbO6: Mn4+ phosphor has potential in optical thermometry.
JOURNAL OF LUMINESCENCE
(2023)
Article
Materials Science, Ceramics
Zhaojie Wu, Li Li, Yongjie Wang, Faling Ling, Zhongmin Cao, Sha Jiang, Guotao Xiang, Xianju Zhou, Yongbin Hua, Jae Su Yu
Summary: A dual-mode optical thermometer utilizing a double-perovskite Mn4+/Sm3+ co-doped luminescent material was designed for precise temperature detection. The thermometer achieves accurate temperature measurement and high sensitivity through the fluorescence intensity ratio (FIR) and decay lifetime techniques.
CERAMICS INTERNATIONAL
(2022)
Article
Spectroscopy
Fengya Hu, Shiqi Ren, Yongjin Wu, Chengmei Sun, Bingjun Zhu, Qingru Wang, Shuhong Li, Dong Zhang
Summary: Zinc titanate phosphors with Eu3+/Mn4+ as active ions were synthesized. XRD patterns confirmed a mixture of cubic Zn2TiO4 and hexagonal ZnTiO3 phases. The luminous intensity of ZTO: Eu3+ and ZTO: Mn4+ phosphors increased with doping concentration, reaching maximum values at 2 mol% Eu3+ and 0.3 mol% Mn4+, respectively. Photoluminescence spectra revealed characteristic peaks of Eu3+ at low Mn4+ content, and both Mn4+ and Eu3+ luminescence peaks at higher Mn4+ content. The relative sensitivity of the samples in variable temperature spectra improved with increasing Mn4+ concentration, reaching a maximum value of 3.2 %/K.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Spectroscopy
Yuhui Zhang, Ning Guo, Baiqi Shao, Jing Li, Ruizhuo Ouyang, Yuqing Miao
Summary: A new temperature sensing strategy was proposed to attain strong sensitivity and excellent signal resolution ability using NLMW:Mn4+/Er3+ phosphors, achieving high-efficiency dual-mode emission. Detailed analysis of crystallographic structure and spectrum properties revealed a maximum relative sensitivity of 1.31% K-1, indicating the potential application of NLMW:Mn4+/Er3+ phosphors in non-contact temperature measurement.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Chemistry, Applied
Fuwen Liu, Ying Tian, Degang Deng, Ming Wu, Bowen Chen, Liuyan Zhou, Shiqing Xu
Summary: A novel non-contact optical thermometer utilizing dual-emitting La5Si2BO13:Ce3+,Eu2+ phosphors shows high sensitivity and temperature resolution, particularly effective in low temperature region. The variational emissions of Ce3+ and Eu2+ can be converted to signals for temperature measurement.
JOURNAL OF RARE EARTHS
(2021)
Article
Materials Science, Ceramics
Ronghui Liu, Zonghao Lei, Ruyi Sun, Shikun Su, Yanfei Zou, Lijie Sun, Jingyao Lu, Chen Hu, Bing Teng, Shijia Sun, Degao Zhong
Summary: Fluorescence temperature measurement technology has sparked a new wave of non-contact temperature measurement, but the single-mode thermometry still has a large error. In this study, a dual-mode modulation thermometry based on GaNbO4:Yb3+/Er3+ up-conversion phosphor is achieved in a wide temperature range of 93-633 K, with a maximum relative sensitivity of 11.7% K-1 (93 K) and 13.1% K-1 (123 K). The GaNbO4:Yb3+/Er3+ phosphors were synthesized using the high temperature solid-state method and characterized for their structure, surface morphology, and optical properties. The fluorescence intensity ratio (FIR) readout method based on Er3+ thermal-coupled and non-thermal-coupled energy levels was used for the dual-mode temperature measurement. The results demonstrate the great potential of GaNbO4:Yb3+/Er3+ phosphors in high sensitivity broadband thermometry.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Zhibin Yang, Zhijun Wang, Mingjie Zheng, Xuejiao Wang, Jia Cui, Yao Yao, Lingwei Cao, Mengya Zhang, Hao Suo, Panlai Li
Summary: Transition metal ions Mn4+ are currently of interest for their potential in diverse luminescence applications. In this study, Mg28Ge7.55-xGaxO32F15.04: Mn4+ phosphors with optical thermometry capabilities were synthesized, showing promising applications in single-mode and dual-mode optical thermometers.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Engineering, Environmental
Konglan Chen, Zifan Shao, Chuang Zhang, Shiyu Jia, Tingting Deng, Rongfu Zhou, Yayun Zhou, Enhai Song
Summary: This study successfully develops a Mn4+-doped oxyfluoride single crystal as an accurate dual-mode optical temperature sensor and applies it to a portable optical fiber thermometric platform. By growing a homogeneous NNOF shell, the moisture resistance of the sensor is improved, extending its operational lifespan. The fabricated thermometric platform shows accurate measurement results for boiling water and has great potential for practical applications.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Nanoscience & Nanotechnology
Zhanglin Chen, Songmo Du, Kaiming Zhu, Zhaobo Tian, Jie Zhang, Fei Li, Shijia Zhang, Shuo Zhao, Wei Cui, Xuanyi Yuan, Kexin Chen, Guoliang Yuan, Guanghua Liu
Summary: This article reports Mn4+-activated double-perovskite-type Sr2LuNbO6 multifunctional phosphors with excellent comprehensive properties in the fields of optical temperature/pressure sensing and w-LED lighting. The optimal doping concentration, crystalline structure, and optical bandgap of the phosphors are investigated, and their thermometric and pressure-sensing properties are explored. The results suggest that the Mn4+-activated Sr2LuNbO6 multifunctional phosphors have great potential in optical thermometry, manometry, and lighting.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Christian F. Varela, Yeison D. Molina, S. Sandoval Gutierrez, L. C. Moreno-Aldana, C. A. Parra Vargas
Summary: A series of Lu3Al5-xFexO12:Ce3+ (0.00 <= x <= 0.45) garnets were successfully synthesized via solid-state reaction method at 1200 degrees C, with Fe3+ doping enabling the production of pure-phase materials at lower temperatures and times. These materials exhibited improved blue absorption and tunable emission, along with high quantum yield, thermal stability, and color conversion, making them promising candidates for w-LEDs.
Article
Optics
Hanyu Xu, Zuoling Fu, Yanling Wei
Summary: This work discusses the method to solve the deliquescence of Cs3ErF6 and its excellent temperature measurement performance. The soaking experiment found that water has irreversible damage to the crystallinity of Cs3ErF6, and successful isolation of Cs3ErF6 from vapor deliquescence was achieved through silicon rubber sheet encapsulation. Temperature-dependent spectra were obtained by heating samples to remove moisture, and two luminescent intensity ratio (LIR) temperature sensing modes were designed based on the spectral results. This study focuses on the deliquescence effect of Cs3ErF6 and the feasibility of silicone rubber encapsulation, and designs a dual-mode LIR thermometer for different situations.
Article
Spectroscopy
Miaomiao Zhu, Qincan Ma, Ning Guo
Summary: In this study, rare-earth-doped self-activated LiCa3ZnV3O12 (LCZV) vanadate phosphors were prepared and their crystal structure, non-contact temperature sensing, and luminescence properties were deeply studied. The emission of [VO4](3-) group and Eu3+ ions excited by ultraviolet light at 340 nm was monitored. The FIR from Eu3+ to [VO4](3-) exhibited excellent sensitivity performance at 303 K - 523 K. The Eu3+ doped LCZV phosphor not only can be used for high-temperature environmental safety signals but also is an extraordinary viable material in the field of optical sensing.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Materials Science, Ceramics
K. Park, H. Kim, G. W. Jung, S. Y. Gwon, D. H. Kim
Summary: Ce3+ and Pr3+ co-doped Lu3Al5O12 phosphors were synthesized by the sol-gel process. Their crystal structure, photoluminescence properties, and energy transfer from Ce3+ to Pr3+ were studied. The phosphors showed green-yellow and red emission, with the red emission intensity enhanced by the incorporation of Pr3+.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Mingjun Song, Weiguang Ran, Yang Ren, Lintong Wang, Wang Zhao
Summary: Color-tunable luminescent materials based on multi-emitting centers, such as La2LiNbO6:Bi3+, Eu3+, have attracted attention for their potential applications in display, lighting, and temperature sensing. This research explores the band structure, luminescence properties, and temperature-sensitive behaviors of the novel phosphor, highlighting efficient energy transfer between Bi3+ and Eu3+ ions. Preliminary evaluation of the La2LiNbO6:Bi3+, Eu3+ phosphor in WLED demonstrates its promising performance in terms of photoelectric parameters.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Spectroscopy
Bingjun Zhu, Qianqian Yang, Wenjie Zhang, Shouxin Cui, Bing Yang, Qingru Wang, Shuhong Li, Dong Zhang
Summary: This study improved the optical properties of ZnTiO3: Mn4+,Eu3+ phosphor by introducing Al3+ ions, enhancing the emission intensity and temperature dependence. By using the dual-mode ratiometric thermometry, a highly sensitive optical temperature probe was successfully obtained.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Materials Science, Multidisciplinary
Bo-Mei Liu, Xiao-Xuan Guo, Lin Huang, Rong-Fu Zhou, Rui Zou, Chong-Geng Ma, Jing Wang
Summary: A multicenter strategy is developed for the preparation of blue-light-excitable Mg2SnO4:Cr3+,Ni2+ phosphors with NIR dual-emission. A ratiometric measurement system with a self-calibration function is established for highly precise and nondestructive detection of water/ethanol mixtures in the field of NIR spectroscopy applications. Additionally, a super-broadband pc-LED with a NIR output power of 16.1mW@300 mA is fabricated, demonstrating its applications in high-penetration imaging and anticounterfeiting.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Chemistry, Applied
Bo Shu, Zhilang Liu, Zhaoqing Liu, Pengsong Li, Xin Li, Shaoheng Yang, Huangwei Chen, Jiqiang Liu, Zhuohong Yang, Yang Hu
Summary: Graphene oxide (GO) as an inorganic filler for polymer-based composite coating film construction has received great attention. However, the poor dispersion behavior and compatibility of GO in hydrophobic polymers limit its practical application. In this study, SiO2-decorated GO (GO-SiO2) nanoparticles were successfully prepared and used as fillers in a non-solvent UV-curable castor oil-based polyurethane acrylate (COPUA) system for the preparation of composite coating films. The incorporation of GO-SiO2 nanoparticles improved the hydrophobic property, thermal stability, mechanical performance, acid and alkali resistance, solvent resistance, and anticorrosion performance of the coating films.
PROGRESS IN ORGANIC COATINGS
(2023)
Article
Environmental Sciences
Bi-Lin Lai, Hui-Xu Wei, Zi-Nuo Luo, Tong Zheng, Yi-Hui Lin, Zhao-Qing Liu, Nan Li
Summary: Cu-N/C@Cu composites were synthesized as bifunctional cathode catalysts for microbial fuel cells (MFC) by doping, adsorption, and two calcinations using Cu-ZIF-8 as the precursor. The optimized Cu-N/C@Cu-2 catalyst with higher Cu-Nx content exhibited excellent ORR catalytic activity. The MFCs assembled with Cu-N/C@Cu-2 achieved a maximum power density of 581 +/- 13 mW m-2, even better than that using Pt/C (499 +/- 13 mW m-2). The higher Cu content in Cu-N/C@Cu-2 also effectively prevented cathode biofilm contamination.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Materials Science, Multidisciplinary
Chu-Yao Zhong, Ladi Li, Qing Chen, Kai-Zhe Jiang, Fa-tang Li, Zhao-Qing Liu, Yibo Chen
Summary: Doping cesium lead halide perovskite nanocrystals with Mn2+ can enhance the exciton-to-Mn2+ energy transfer efficiency. The synthesized Mn2+ activated 3D/0D Cs-Pb-Cl perovskite composition showed improved energy transfer efficiency compared to single-phase CsPbCl3:Mn2+ nanocrystals.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Luyu Cao, Si-Min Gu, Bomei Liu, Lin Huang, Jian Zhang, Yiwen Zhu, Jing Wang
Summary: A facile room-temperature co-precipitation method using ethanol solvent and salicylic acid additive is proposed for synthesizing highly stable cubic phase CsSnBr3 perovskite. The protection effect of ethanol and salicylic acid prevents oxidation of Sn(2+) and stabilizes the perovskite material. The synthesized CsSnBr3 perovskite exhibits exceptional stability under moist air conditions.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Kailian Zhang, Meng Dan, Jingfei Yang, Fengxiu Wu, Leigang Wang, Hua Tang, Zhao-Qing Liu
Summary: Constructing a rich defect active site structure for material design remains a significant challenge. In this study, a simple surface engineering strategy is demonstrated to create ZnIn2S4 atomic layers with modulated surface energy, resulting in rich S vacancy and enhanced H2O2 production. The presence of S vacancy serves as the active site for the oxygen reduction reaction, leading to a significant increase in the productive rate of H2O2. This study provides valuable insights for controlling defects and achieving efficient H2O2 production.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Ge Shi, Xinwen Peng, Jiaming Zeng, Linxin Zhong, Yuan Sun, Wu Yang, Yu Lin Zhong, Yuxuan Zhu, Ren Zou, Shimelis Admassie, Zhaoqing Liu, Chuanfu Liu, Emmanuel I. Iwuoha, Jun Lu
Summary: Maintaining a steady affinity between gallium-based liquid metals and polymer binders is challenging for continuous mechanical deformation applications. In this study, a LM-initialized polyacrylamide-hemicellulose/EGaIn microdroplets hydrogel is developed as a multifunctional ink for 3D-printing self-standing scaffolds and anode hosts for Zn-ion batteries. The hydrogel acts as a framework for stress dissipation, allowing for recovery from structural damage caused by cyclic plating/stripping of Zn2+.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Zhiyu Yang, Tristan de Boer, Patrick M. Braun, Binbin Su, Qinyuan Zhang, Alexander Moewes, Zhiguo Xia
Summary: This study explores Eu2+-activated oxide-based double perovskites as red emitters with thermally stable photoluminescence for laser-driven lighting applications. The Sr3TaO5.5:Eu2+ ceramics demonstrate a red emission band and a constructed laser-driven white light wheel achieves a record luminous flux and excellent color rendering index.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Jingjing Cai, Huijian Zhang, Lizhu Zhang, Yuqing Xiong, Ting Ouyang, Zhao-Qing Liu
Summary: The electronic structure of transition metal complexes can be modulated by replacing partial ions, which can lead to tuned electrocatalytic activity for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER). However, the ORR activity of anion-modulated transition metal complexes is still unsatisfactory and it remains challenging to construct hetero-anionic structures. In this study, atomic doping strategy was used to prepare CuCo2O4-xSx/NC-2 (CCSO/NC-2) electrocatalysts, which showed excellent catalytic performance and durability for ORR and OER due to the partial substitution of S atoms for O in CCSO/NC-2. The introduction of S optimized the reaction kinetics and promoted electron redistribution.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xinquan Zhou, Kai Han, Yexin Wang, Jiance Jin, Shangda Jiang, Qinyuan Zhang, Zhiguo Xia
Summary: A new generation X-ray storage phosphor material, CsCdCl3:Mn2+, Zr4+, was designed and synthesized with improved performance by manipulating Mn2+ site occupation and heterovalent substitution. This material exhibited zero-thermal-quenching radioluminescence and anti-TQ X-ray-activated persistent luminescence, achieving high storage capacities and high-resolution X-ray imaging.
ADVANCED MATERIALS
(2023)
Article
Optics
Yuanyuan Li, Puxian Xiong, Bibo Lou, Hendrik C. Swart, Chonggeng Ma, Zhiguo Xia
Summary: Broadband NIR emission is achieved in Bi3+ activated perovskite oxides MZrO3 (M = Ba, Sr), and the luminescence mechanism is revealed through experimental and first-principles studies. The valence state of Bi3+ ions is confirmed to be trivalent, and the possibility of NIR emission from lower state bismuth is excluded. The selective occupancy of Bi3+ in different sites enables the emission discrepancy, where Bi3+ on M2+ sites accounts for visible emission while Bi3+ on Zr4+ sites shows NIR emission. The existence of Ba2+ vacancy has a significant influence on the emission spectra of Bi3+ visible emission.
JOURNAL OF LUMINESCENCE
(2023)
Article
Chemistry, Multidisciplinary
Bo-Hao Xiao, Jian-Xi Li, Hong-Yi Xu, Jia-Le Huang, Yin-Lin Luo, Kang Xiao, Zhao-Qing Liu
Summary: The study proposes the Polymer Chainmail as a candidate for compressible supercapacitor electrode materials, which have high theoretical capacitance and deformability. By adding dopants, the mechanical and electrochemical stabilities of the electrode are achieved, providing new insights into the preparation of stable conductive polymer-based electrode materials.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Chunli Zhao, Yuan Gao, Tiantian Song, Jing Wang, Jianbei Qiu
Summary: In this study, Cs2NaScCl6:Er3+ crystals were successfully synthesized and showed efficient luminescence under excitation by ultraviolet and near-infrared light. The strong localization effect of Er3+ ions in the crystal lattice was observed through calculations, and charge transfer sensitization was identified as the reason for the high luminescence efficiency.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Physical
Jingwei Li, Zhengyi Huang, Cong Wang, Lei Tian, Xiaoqing Yang, Rongfu Zhou, Mohamed Nawfal Ghazzal, Zhao-Qing Liu
Summary: In this research, the efficient transfer of photoexcited carriers was achieved by introducing amorphous carbon into bandgap-broken heterojunctions. The formation of similar orbital energies enabled the migration of electrons and holes to the amorphous carbon, thereby enhancing carrier separation in the heterojunction. By controlling the relative amount of metal-O-C bonds at the interface, the charge transfer kinetics could be modulated, resulting in a significant increase in H2 generation. This strategy can be extended to other carbon allotropes, demonstrating its universality in optimizing charge transfer in broken-bandgap heterojunctions for photocatalytic H2 production.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Applied
Yi Huang, Shiming Chen, Wei Huang, Xiaoting Zhuang, Jiahao Zeng, Mingcong Rong, Li Niu
Summary: By combining Au NCs-CDs nanocomposite-based test paper and PVA film with a smartphone, sensitive and specific visual monitoring of sulfide can be achieved, with the advantages of simplicity, convenience, and accuracy.
