Article
Materials Science, Ceramics
Weiying Zhou, Zekui Fang, Zhou Cai, Jiaqi Fan, Peican Chen, Liya Zhou, Jie Li, Zhengliang Wang, Xinguo Zhang
Summary: A new dual-emitting phosphor Na2BaMg(PO4)2: Eu2+, Mn2+ is prepared via conventional sintering method. The phosphor exhibits efficient double-band emissions at 415 and 620 nm, which match well with the absorption spectra of chlorophyll A/B and phytochrome in plants. It shows good thermal stability (75% emission intensity maintenance at 200 degrees C) and high quantum efficiency (QE > 80%). A prototype LED fabricated using this phosphor and NUV chip demonstrates two distinct emission peaks modulating an optimum action spectrum for plant absorption. Na2BaMg(PO4)2: Eu2+, Mn2+ shows great potential as a converted component for plant growth LEDs.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Jin Liu, Zheng Long, Siguo Xiao, Xiaoliang Yang
Summary: A novel K0.5La0.5SrMgWO6:Mn4+ phosphor with deep-red emission and outstanding quantum efficiency has been designed through A-site multi cations substitution strategy, showing potential application in plant cultivation LEDs.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Julian Petry, Rajesh Komban, Christoph Gimmler, Horst Weller
Summary: A simple method for the synthesis of nanosized Y2O3:Eu particles with bright red emission under UV excitation and high quantum yield is presented in this publication. By adding Tb3+ as a sensitizer, the emission color can be tuned towards orange/yellow. XRD analysis confirms a distorted anisotropic cubic phase of Y2O3, which transforms into a highly crystalline cubic phase with a typical emission spectrum after a calcination step.
NANOSCALE ADVANCES
(2022)
Article
Chemistry, Physical
Jihuan Xie, Liqun Cheng, He Tang, Xiaofang Yu, Zhongxue Wang, Xiaoyun Mi, Quansheng Liu, Xiyan Zhang
Summary: Various Dy3+ single-doped and Dy3+, Eu3+ co-doped NaBi(WO4)(2) phosphors were synthesized using high temperature solid state method. Energy transfer efficiency in NaBi(WO4)(2): 0.08Dy(3+), yEu(3+) phosphors reached 72.576%, indicating potential for use in solid state lighting. Thermal stability testing revealed a drop in PL emission intensity at 423 K compared to 303 K, with the ability to achieve warm white light through varying Eu3+ ion concentration.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Inorganic & Nuclear
Fei Wang, Huihui Chen
Summary: A series of novel Sr1.9-xLa8(SiO4)(6)O-2:0.1Eu((2+,3+)), xMn(2+) phosphors were successfully prepared by high temperature solid-phase method. The emission spectrum range of the phosphors is 500-750 nm. Energy transfer between Eu3+ and Mn2+ can be achieved when x = 0.03 mol. By controlling the Mn2+ doping, the emission light of the phosphors can be shifted from the yellow light region to the orange-red light region.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Chemistry, Applied
Jinkai Li, Bin Liu, Guiyuan Liu, Quande Che, Yizhong Lu, Zongming Liu
Summary: Uniform Sr2NaMg2V3O12:xEu phosphors with good dispersion were synthesized via solid state reaction. The phosphor exhibited blue-green and red emission under appropriate excitation wavelength. The emission intensity of [VO4]3- decreased while the emission intensity of Eu3+ increased with the increase of Eu3+ content. The phosphor also showed good thermal stability.
JOURNAL OF RARE EARTHS
(2023)
Article
Materials Science, Multidisciplinary
Yao Zhu, Niumiao Zhang, Jiale Wang, Yuanhao Kang, Mu-Huai Fang
Summary: The Ca9MgNa(PO4)7: Eu2+, Mn2+ phosphors were successfully prepared and their energy transfer efficiency and luminescence mechanism were analyzed. The phosphors showed good thermal stability and the LED device packaged with these phosphors has potential applications in plant cultivation.
Article
Chemistry, Multidisciplinary
Jinmeng Xiang, Xiaoqi Zhao, Hao Suo, Minkun Jin, Xue Zhou, Changheng Chen, Chongfeng Guo
Summary: Controlling plant growth environment with pc-LEDs is crucial for regulating growth rhythm and increasing yield. The developed phosphor NBSP:Eu2+ exhibits high quantum yield and excellent thermal stability in the blue-violet region, showing promising potential for application in plant growth LEDs.
MATERIALS CHEMISTRY FRONTIERS
(2021)
Article
Chemistry, Physical
Yan Chen, Yuemei Lan, Dong Wang, Fuming He, Dongliang Xie, Youhao Pan, Bo Wang, Yeqing Chen, Xin He, Qingguang Zeng, Jing Wang
Summary: In this study, a single host phosphor CSO: Eu2+, Mn2+ with good monodispersity was successfully synthesized using porous silica as template. By introducing Mn2+ ions, the emission of orange light was enhanced and the luminescence performance was improved. Modulation of the emitting light from cool white to warm white was achieved by adjusting the molar ratio of Eu2+ and Mn2+.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Engineering, Electrical & Electronic
Yufeng Du, Haoran Su, Zhequan Zou, Daomiao He, Yufan Shang, Li Zhou, Jiexin Chen, Siyu Cheng, Yilian Ran, Shouan Xie, Ruijin Yu
Summary: A novel Sm3+-doped ZnLaB5O10 phosphor was successfully synthesized using a high-temperature solid-phase synthesis method. The prepared phosphor exhibited a higher emission intensity at 596 nm compared to 562 nm, indicating promising potential for white LED illumination. The optimization of doping concentration and investigation of thermal stability further confirmed its suitability for practical applications.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Boli Chen, Meihua Wu, Qiyun Liu, Can He, Yifan Yang, Yifei Liu, Chen Yang, Xiao Wen, Xin Min, Zhaohui Huang
Summary: The development of red phosphors, particularly CaSc2O4:Eu3+ phosphor, shows great potential in enhancing the quality of white LED lighting. The research investigates the luminous properties of CaSc2O4:Eu3+ phosphor and its application in LED devices. The study measures and calculates various properties, such as thermal stability, quantum efficiency, activation energy, and decay time of the phosphor. The results demonstrate that CaSc2O4:Eu3+ phosphor can be used as a red light component in n-UV light excited white LEDs.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Materials Science, Multidisciplinary
Jinyi Wang, Xudong Wang, Chenjie Zhang, Xinyu Zhang, Tianliang Zhou, Rong-Jun Xie
Summary: A broadband Sr6Sc2Al4O15:Cr3+ near-infrared phosphor was reported in this study, which emitted in the 600-1500 nm range by choosing a host that accommodated both Ce3+ and Cr3+ ions. A NIR pc-LED was fabricated by combining the phosphor with a blue LED, and it demonstrated a NIR output power of 0.16 mW driven at 750 mA, suitable for night vision and non-destructive detection.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Physical
Ram Sagar Yadav
Summary: In this study, Tb3+/Sm3+ doped Y2O3 nano-phosphors were prepared by the solution combustion method. The structural and morphological analyses confirmed the nanocrystalline structure of the Y2O3 nano-phosphors. The doping of Sm3+ ions resulted in tunable color emission and improved energy transfer efficiency. The research findings suggest potential applications in display devices, color tunable devices, and warm white LEDs.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Yifeng Yan, Chaolian Luo, Shaokun Ling, Jie Liang, Sen Liao, Yingheng Huang
Summary: This study reports the preparation of Bi3+/Mn4+ doped CYAO phosphors via sol-gel method. The results show that CYAO:Bi3+, Mn4+ phosphors have good optical properties and high thermal stability, making them suitable for indoor crop cultivation lighting.
Article
Materials Science, Multidisciplinary
Liang Xiu, Ting Wang, Bitao Liu, Shuangqiang Fang, Zhenzhen Cui, Haihong Guo, Qianrui Ma, Guilong Yan, Shaoqing Wang, Ziyang Li, Longchao Guo, Xue Yu, Xuhui Xu, Jianbei Qiu
Summary: A novel Ba2LuNbO6:Mn4+ far-red phosphor was fabricated, showing broad excitation bands and emitting far-red light at 698 nm. The introduction of Gd3+ ions significantly enhanced the far-red PL intensity.
ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY
(2021)
Article
Materials Science, Ceramics
Zishan Sun, Zhenpeng Zhu, Ziying Guo, Zhan-chao Wu, Zichao Yang, Tingting Zhang, Xinguo Zhang
CERAMICS INTERNATIONAL
(2019)
Article
Materials Science, Ceramics
Xinguo Zhang, Zishan Sun, Chunyan Zhou, Zhenpeng Zhu, Ziying Guo, Jinhai Shen, Yuxuan Lin, Shuang Xiao, Liang Chen, Xihua Zheng, Zhan-Chao Wu
CERAMICS INTERNATIONAL
(2019)
Article
Chemistry, Applied
Ziying Guo, Jiabao Luo, Zhenpeng Zhu, Zishan Sun, Xinguo Zhang, Zhan-chao Wu, Fuwang Mo, Anxiang Guan
Article
Materials Science, Ceramics
Zhan-Chao Wu, Zhen Yang, Xing-Xing Zhang, Ming-Xia Jiao, Jie Liu, Li Ma, Xiao-Jun Wang
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2020)
Article
Chemistry, Applied
Zishan Sun, Zikang Chen, Jiabao Luo, Zhenpeng Zhu, Xinguo Zhang, Ruiyuan Liu, Zhan-chao Wu
Article
Spectroscopy
Jiabao Luo, Zishan Sun, Zhenpeng Zhu, Xinguo Zhang, Zhan-chao Wu, Fuwang Mo
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2020)
Article
Chemistry, Inorganic & Nuclear
Xinguo Zhang, Jiabao Luo, Zishan Sun, Weiying Zhou, Zhan-Chao Wu, Jilin Zhang
INORGANIC CHEMISTRY
(2020)
Article
Chemistry, Inorganic & Nuclear
Jiaqi Fan, Weiying Zhou, Zhan-chao Wu, Ye Yang, Peichan Chen, Qi Pang, Liya Zhou, Chunyan Zhou, Fuwang Mo, Xinguo Zhang
Summary: Novel green-red color-tunable Ca-8(Mg,Mn)Tb(PO4)(7):Eu2+ phosphors were synthesized using the traditional solid-state method. The introduction of Eu2+ into the Ca-8(Mg,Mn)Tb(PO4)(7):Eu2+ structure resulted in structural confinement due to the presence of Tb3+/Mn2+ ions as parent ions in the lattice. Efficient energy transfer was achieved through the short distances between Eu2+-Tb3+/Mn2+ and Tb3+-Mn2+. The phosphor demonstrated good thermal stability and potential applications in white light LEDs.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Wenjing Huang, Jiahui Zhang, Jiaqi Fan, Peican Chen, Qi Pang, Liya Zhou, Zhan-chao Wu, Yunrui Hu, Xinguo Zhang
Summary: A new NIR phosphor, Ca2GeO4:Ni2+, was developed for the first time, which exhibited a sharp-line NIR emission attributed to the unusual Ni2+-occupied GeO4 site in the lattice instead of the conventional broadband emission. Crystal-field analysis was employed to reveal the relationship between the emission profile and the crystal field strength. The optimal Ni2+ doping concentration was found to be 1%. This work provides new insights for exploring novel NIR luminescent materials based on transition-metal elements.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Jiahui Zhang, Wenjing Huang, Jiaqi Fan, Weiying Zhou, Zhan-chao Wu, Chunyan Zhou, Liya Zhou, Qiang Xiao, Xinguo Zhang
Summary: In this study, a Li(Sc,In)(Si,Ge)O-4 phosphor was developed based on the host composition engineering strategy, which successfully achieved ultrawideband and tunable NIR-II emission. The distortion of the octahedral site in the olivine host structure provided by the Cr3+ activator enabled the NIR-II emission with ultrawideband characteristics. This is the first report on Cr3+ NIR luminescence engineering in such a long wavelength and wide range.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Yue Pan, Hongdong Li, Zuochao Wang, Yi Han, Zhanchao Wu, Xinyi Zhang, Jianping Lai, Lei Wang, Shouhua Feng
CHEMICAL COMMUNICATIONS
(2020)
Article
Chemistry, Inorganic & Nuclear
Xinguo Zhang, Zhenpeng Zhu, Ziying Guo, Zishan Sun, Zichao Yang, Tingting Zhang, Jilin Zhang, Zhan-chao Wu, Zhengliang Wang
INORGANIC CHEMISTRY FRONTIERS
(2019)
Article
Chemistry, Multidisciplinary
Zhenbin Guo, Bojana Milicevic, Ziwang Zhang, Zhan-Chao Wu, Jianxin Shi, Mingmei Wu
NEW JOURNAL OF CHEMISTRY
(2019)
Article
Chemistry, Physical
J. Zamora, T. Bautista, N. S. Portillo-Velez, A. Reyes-Montero, H. Pfeiffer, F. Sanchez-Ochoa, H. A. Lara-Garcia
Summary: Experimental and DFT studies were conducted on the structural, magnetic, and optical properties of RFeO3 perovskites. The perovskites exhibited an orthorhombic crystal structure and weak ferromagnetic behavior. They were confirmed to be semiconductors with a bandgap of approximately 2.1 eV.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xianxiang Lv, Jing Jin, Weiguang Yang
Summary: By depositing TiN and TiO2 surface layers on AlSi films, the electrochemical performance of silicon-based anodes can be significantly improved, suppressing volume expansion and promoting the formation of a stable SEI layer.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Sharafat Ali, Haider Ali, Syedul Hasnain Bakhtiar, Sajjad Ali, Muhammad Zahid, Ahmed Ismail, Pir Muhammad Ismail, Amir Zada, Imran Khan, Huahai Shen, Rizwan Ullah, Habib Khan, Mohamed Bououdina, Xiaoqiang Wu, Fazal Raziq, Liang Qiao
Summary: The construction and optimization of redox-heterojunctions using a bifunctional phosphate as an electron-bridge demonstrated significant improvements in photo catalytic activity, including enhanced dispersion, reduced interfacial migration resistance, and increased abundance of active-sites.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ren-Ni Luan, Na Xu, Chao-Ran Li, Zhi-Jie Zhang, Yu-Sheng Zhang, Jun Nan, Shu-Tao Wang, Yong-Ming Chai, Bin Dong
Summary: Extensive research has revealed that oxygen evolution reaction (OER) in alkaline conditions involves dynamic surface restructuring. The development and design of sulfide/oxide pre-catalysts can reasonably adjust the composition and structure after surface reconstruction, which is crucial for OER. This study utilized a simple two-step hydrothermal method to achieve in situ S leaching and doping, inducing the composition change and structure reconstruction of CoFe oxides. The transformed FeOOH and CoOOH exhibited excellent OER activity and could be easily mass-produced using low-cost iron based materials and simple methods.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jun'an Lai, Daofu Wu, Peng He, Kang An, Yijia Wang, Peng Feng, WeiWei Chen, Zixian Wang, Linfeng Guo, Xiaosheng Tang
Summary: Zero-dimensional organic-inorganic metal halides (OMHs) are gaining attention in the fabrication of light-emitting diodes due to their broad emission band and high photoluminescence quantum yield. This work synthesized a zero-dimensional organic tetraphenylphosphonium bismuth chloride (TBC) that showed efficient blue light emission, with the emission mechanism attributed to the transition of Bi3+ ions. White light-emitting diodes (WLEDs) were fabricated using TBC, along with green-emitting and red-emitting single crystals, achieving single-component white emissions. These findings demonstrate the different emission mechanism of ns2 ions-based OMHs and highlight the potential of bismuth-based OMHs in WLEDs applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xuewei Liang, Yunhai Su, Taisen Yang, Zhiyong Dai, Yingdi Wang, Xingping Yong
Summary: The revolutionary design concept of high-entropy alloys has brought new opportunities and challenges to the development of advanced metal materials. In this work, AlCrCuFe2NiTix high-entropy flux cored wires were prepared by combining the design idea of a high-entropy alloy with the characteristics of flux cored wire. AlCr-CuFe2NiTix high-entropy surfacing alloys were prepared using gas metal arc welding technology. The wear properties of the alloys were analyzed, and the phase composition, microstructure, strengthening mechanism, and wear mechanism were discussed. The results show that the alloys exhibit a dendritic microstructure with BCC/B2 + FCC phases. Increasing Ti content leads to the precipitation of Laves phase. The alloys show improved microhardness and wear resistance due to the precipitation of coherent B2 and Laves phases. However, excessive Ti addition results in the increase of Laves phase and reduced wear resistance of the alloys.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
M. Vadivel, M. Senthil Pandian, P. Ramasamy, Qiang Jing, Bo Liu
Summary: This work presents the enhanced photocatalytic and electrochemical performance of g-C3N4 assisted PAA on CoFe2O4 ternary nanocomposites. The incorporation of PAA and g-C3N4 improves the separation efficiency of photogenerated charge carriers, resulting in superior photocatalytic degradation and high specific capacitance values.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Vibhu T. Sivanandan, Ramany Revathy, Arun S. Prasad
Summary: In this study, pure and doped cobalt ferrite nanoparticles were prepared using the sol-gel auto-combustion method with the aid of lemon juice as eco-fuel. The crystal structure, lattice parameter, crystallite size, microstrain, optical parameters, and room temperature magnetic properties of the samples were analyzed. The effect of doping on the magnetic properties was also investigated.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qing Guo, Bowen Zhang, Benzhe Sun, Yang Qi
Summary: This study prepared ZnO films with various nonpolar preferred orientations using conventional chemical bath deposition method and characterized their growth process and mechanism. It was found that the type and concentration of nitrate could control the preferred orientation and surface roughness of ZnO films. Additionally, ZnO films with different preferred orientations exhibited different optical properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Chong Zhang, Yan Liu, Zhaoyan Wang, Hang Yang
Summary: In this study, six bimetallic FeCo particles were synthesized via the hydrothermal method at different Fe:Co ratios. The Fe:Co ratio not only modulates the composition of the particles but also influences their structure and magnetic properties. The FeCo alloys showed a transformation from an Fe-based structure to a Co-based structure with increasing Co content. The Fe:Co ratio of 1:1 and 3:1 resulted in particles with the highest and lowest saturation magnetization, respectively.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jianning Zhang, Jing Li, Yiren Wang, Xiaodong Mao, Yong Jiang
Summary: We conducted a study on the formation of ultra-fine Y-Ti-Ta-O nano-oxides in Ta+B micro-alloyed 13CrWTi-ODS alloys using electron microscopy and first-principles calculations. The Y-Ti-Ta-O nano-oxides were found to be mainly Y2(Ti,Ta)2O7, with an average size of 7 nm and a number density of 6.8 x 1023 m-3. Excess boron was found to enhance the adhesion of some low-sigma grain boundaries but weaken the Fe/Y2Ti2O7 interface, while excess tantalum enhanced the Fe/Y2Ti2O7 interface but caused serious degradation of grain boundaries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Yirong Fang, Pei Cheng, Hang Yuan, Hao Zhao, Lishu Zhang
Summary: A new composite system of nitrogen-doped reduced graphene oxide and black phosphorus quantum dots has been developed for tumor therapy, showing improved electrochemical properties and stability. The system generates hydrogen peroxide and hydroxyl radical to effectively kill tumor cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xiufang Qin, Yuanli Ma, Hui Zhang, Ting Zhang, Fang Wang, Xiaohong Xu
Summary: The structure and magnetism of cobalt ferrites after Mn2+-Tb3+ co-doping were studied. Co-doped samples exhibited cubic spinel structure and spherical shape of ferrite nanoparticles. The redistribution of Co2+ and Fe3+ ions between octahedral and tetrahedral sites was observed due to Mn2+-Tb3+ co-doping. The coercivity and magnetization saturation of co-doped samples were significantly improved, leading to a maximum energy product that is 190% higher than that of the un-doped sample.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ho Yeon Lee, Wonjong Yu, Yoon Ho Lee
Summary: Recently, there has been an increasing interest in developing ultra-fine nanostructured electrodes with extensive reaction areas to enhance the performance and low-temperature operation of solid oxide fuel cells. The use of a refined approach involving co-sputtering metal alloys and oxide targets has demonstrated the feasibility of nano-columnar structures in perovskite-based electrodes, expanding the temperature range of thin film electrodes. This study systematically examines the effects of chamber pressure control in the co-sputtering process and identifies the intricate relationship between sputtering pressure and film structure. By fine-tuning the columnar growth in the electrode, significant improvements in performance and thermo-mechanical properties were achieved, resulting in high-performance all-sputtered solid oxide fuel cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qianyun Bai, Xiaoxiao Yan, Da Liu, Kang Xiang, Xin Tu, Yanhui Guo, Renbing Wu
Summary: This study proposes a simple method to develop a non-precious transition metal-based electrocatalyst with high catalytic activity and robustness for the hydrogen evolution reaction. The as-synthesized electrode exhibits a low overpotential and high current density, indicating its potential in energy conversion.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
