- 作 者: ( "dejun fu" OR "de-jun fu" )
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Geometry-asymmetric photodetectors from metal–semiconductor–metal van der Waals heterostructuresMaterials Horizons (IF 15.717) Pub Date : 2022-10-13 ,DOI:10.1039/d2mh00872fXiao Fu, Tangxin Li, Qing Li, Chunhui Hao, Lei Zhang, Dejun Fu, Jinjin Wang, Hangyu Xu, Yue Gu, Fang Zhong, Ting He, Kun Zhang, Gennady N. Panin, Wei Lu, Jinshui Miao, Weida HuThe functional diversities of two-dimensional (2D) material devices with simple architectures are ultimately limited by immature doping techniques. An alternative strategy is to use geometry-asymmetric metal–semiconductor–metal (GA-MSM) structures, which enable the basic functions of semiconductor junctions such as rectification and photovoltaics. Here, the mixed-dimensional van der Waals heterostructures ...
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Identification of SSTR5 Gene Polymorphisms and Their Association With Growth Traits in Hulun Buir SheepFrontiers in Genetics (IF 4.772) Pub Date : 2022-04-26 ,DOI:10.3389/fgene.2022.831599Xue Li, Ning Ding, Zhichao Zhang, Dehong Tian, Buying Han, Dehui Liu, Sijia Liu, Fei Tian, Dejun Fu, Xiaoliang Song, Kai Zhao
The aim of this study was to locate SSTR5 polymorphisms and evaluate their association with growth traits in Hulun Buir sheep. The study followed up 884 Hulun Buir sheep from birth to 16 months of age, which were born in the same pasture and the same year, and a consistent grazing management strategy was maintained. The birth weight (BRW) was recorded at birth, and body weight (BW), body height (BH)
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Effects of N2 partial pressure on microstructure and mechanical properties of cathodic arc deposited TiBN/TiAlSiN nano-multilayered coatingsMaterials Today Communications (IF 3.662) Pub Date : 2022-03-26 ,DOI:10.1016/j.mtcomm.2022.103436Zesong Wang, Zhaoyang He, Feifan Chen, Canxin Tian, Uygun V. Valiev, Changwei Zou, Dejun FuNanocomposite coatings have become promising protective materials due to their high hardness and anti-wear properties applicable in high-speed dry cutting and grinding tool industries. The monolithic TiN, TiBN, TiAlSiN and hierarchical TiBN/TiAlSiN coatings were deposited on Si and cemented carbide substrates at various N2 partial pressures using a cathodic multi-arc ion plating system wherein the ...
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Copper ion beam emission in solid electrolyte Rb4Cu16I6.5Cl13.5Chinese Physics B (IF 1.652) Pub Date : 2022-03-01 ,DOI:10.1088/1674-1056/ac2f31Tushagu Abudouwufu, Xiangyu Zhang, Wenbin Zuo, Jinbao Luo, Yueqiang Lan, Canxin Tian, Changwei Zou, Alexander Tolstoguzov, Dejun FuCopper ion conducting solid electrolyte Rb4Cu16I6.5Cl13.5 was prepared by means of mechano-chemical method. The structure and morphology of the powder was investigated by x-ray diffraction and scanning electron microscopy. The grain size was estimated to be 0.2–0.9 μm and the ionic conductivity at room temperature was approximately 0.206 S/cm. The solid electrolyte Rb4Cu16I6.5Cl13.5 was exploited for ...
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Crystal structure and copper ion emission properties of Rb4Cu16I7Cl13 solid electrolyteVacuum (IF 4.11) Pub Date : 2021-11-11 ,DOI:10.1016/j.vacuum.2021.110742Tushagu Abudouwufu, Xiangyu Zhang, Wenbin Zuo, Vasiliy Pelenovich, Jinbao Luo, Yueqiang Lan, Canxin Tian, Changwei Zou, Alexander Tolstoguzov, Dejun FuWe present a study on structure and ion emission behavior of copper ion-conducting solid electrolyte Rb4Cu16I7Cl13 prepared via mechano-chemical ball milling. The powder samples with varying milling time and rotation rate was studied. The room temperature ionic conductivity of Rb4Cu16I7Cl13 was approximately with σrt ∼ 0.213 S/cm. The SEM morphology of this solid electrolyte was studied, and the larger ...
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Ion Irradiation Inducing Oxygen Vacancy-Rich NiO/NiFe2O4 Heterostructure for Enhanced Electrocatalytic Water SplittingSmall (IF 15.153) Pub Date : 2021-08-18 ,DOI:10.1002/smll.202103501Huizhou Zhong, Guoping Gao, Xuening Wang, Hengyi Wu, Shaohua Shen, Wenbin Zuo, Guangxu Cai, Guo Wei, Ying Shi, Dejun Fu, Changzhong Jiang, Lin-Wang Wang, Feng RenOxygen evolution reaction (OER) is an obstacle to the electrocatalytic water splitting due to its unique four-proton-and-electron-transfer reaction process. Many methods, such as engineering heterostructure and introducing oxygen vacancy, have been used to improve the catalytic performance of electrocatalysts for OER. Herein, the above two kinds of regulation are simultaneously realized in a catalyst ...
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Crystal structure and ion transport properties of solid electrolyte CsAg4Br3-xI2+x (0 < x < 1)Solid State Ionics (IF 3.699) Pub Date : 2021-04-24 ,DOI:10.1016/j.ssi.2021.115634Tushagu Abudouwufu, Wenbin Zuo, Vasiliy Pelenovich, Xiangyu Zhang, Xiaomei Zeng, Alexander Tolstoguzov, Changwei Zou, Canxin Tian, Dejun FuSilver-based ionic conductive materials have attracted much interest due to their potential application in the solid electrolyte ion sources (SEIS) in ionic thrusters. In this work, a mechano-chemical synthesis process was developed for preparation of crystalline superionic conductors CsAg4Br3-xI2+x (0 < x < 1) in Ar atmosphere. The crystal structure, morphology, and elemental composition of the silver-based ...
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Direct ion-beam deposition of Ag nanoparticles using a solid-state silver ion sourceVacuum (IF 4.11) Pub Date : 2021-01-01 ,DOI:10.1016/j.vacuum.2020.109846Wenbin Zuo, Vasiliy Pelenovich, Alexander Tolstogouzov, Rui Zhang, Xiaomei Zeng, Tushagu Abudouwufu, Xiangyu Zhang, Dejun FuAbstract Ion beam technology has shown itself worth to be an efficient method to produce nanoparticles embedded in dielectrics for photoelectronic devices. However, direct ion-beam deposition of nanoparticles (NPs) on the surface of dielectrics is rarely reported because the conventional metal ion source runs into difficulties to generate low energy ( ...
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Formation of irregular morphology on nanostructured surface by gas cluster ion beamVacuum (IF 4.11) Pub Date : 2020-12-01 ,DOI:10.1016/j.vacuum.2020.109705Vasiliy Pelenovich, Xiaomei Zeng, Wenbin Zuo, Alexander Tolstogouzov, Nikolay Korobeishchikov, Dejun Fu, Bing YangAbstract Ar1000 cluster ion beam was used to fabricate irregular structures of a micrometer scale on the surface of pressed Si powder of 60 nm nanoparticles (NPs). The average density of the target material played an important role in the surface features formation. The samples with lower average density, i.e. with larger distance between adjacent NPs demonstrated more developed surface morphology ...
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Electrophoretic Deposited Black Phosphorus on 3D Porous Current Collectors to Regulate Li Nucleation for Dendrite-Free Lithium Metal AnodesACS Applied Materials & Interfaces (IF 10.383) Pub Date : 2020-11-04 ,DOI:10.1021/acsami.0c16430Yuan Wang, Hong-Qian Sang, Wenqi Zhang, Yuyang Qi, Rong-Xiang He, Bolei Chen, Weiwei Sun, Xing-Zhong Zhao, Dejun Fu, Yumin LiuLi metal is considered a highly desirable anode for next-generation high-energy-density rechargeable lithium batteries. However, irregular Li dendrite formation and infinite relative volume changes prevent the commercial adoption of Li-metal anodes. Here, electrophoretic deposition of black phosphorus (BP) on commercial Cu foam (BP@Cu foam) is reported to regulate Li nucleation for the first time. ...
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Determination of Debye temperatures in SmFe1-xCoxAsO superconductors by Mӧssbauer spectroscopy and effect of cobalt dopingJournal of Physics and Chemistry of Solids (IF 4.383) Pub Date : 2020-11-01 ,DOI:10.1016/j.jpcs.2020.109621Wenbin Zuo, Vasiliy Pelenovich, D. Neena, Xiaomei Zeng, Chuansheng Liu, Dejun FuAbstract Debye temperatures of 1111-type high-TC superconductors ReFeAsO (Re: rare earth element) are rarely reported in the materials science community. Herein, 57Fe Mӧssbauer spectroscopy, a sensitive technique to hyperfine interaction of Fe nucleus with environment, is applied to study the lattice dynamics in SmFe1-xCoxAsO (0.10≤x ≤ 0.20) superconductors. Two Debye temperatures θ D δ and θ D A are ...
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Fabrication and characterization of Mn-implanted GaN layers followed by annealingJournal of Theoretical and Applied Physics Pub Date : 2020-10-29 ,DOI:10.1007/s40094-020-00399-wIm Taek Yoon, Dejun FuWe report the effect of Mn incorporation on the structural and optical properties of GaN grown on a sapphire substrate in a plasma-enhanced molecular-beam epitaxy system followed by Mn ion implantation and annealing. The crystalline quality and phase purity were determined by high-resolution X-ray diffraction (XRD). The XRD results indicated that no macroscopic second phases were present in the Mn-implanted ...
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Hierarchical Sr-ZnO/g-C3N4 heterojunction with enhanced photocatalytic activitiesJournal of Photochemistry and Photobiology A: Chemistry (IF 5.141) Pub Date : 2020-04-11 ,DOI:10.1016/j.jphotochem.2020.112515Neena D, Muhammad Humayun, Debes Bhattacharyya, DeJun FuIt is urgent to develop new photocatalytic materials that could optimize H2 generation and efficiently degrade environmentally persistent pollutants. Herein, Sr-ZnO/g-C3N4 spherical flowers composed of hierarchical nano-rods composites have been successfully synthesized via facile single step method and utilized in photocatalysis for efficient degradation of Methylene green (MG) and H2 production under ...
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Decoration of ZnO needles with nanoripples using gas cluster ion bombardmentMaterials Letters (IF 3.574) Pub Date : 2020-04-01 ,DOI:10.1016/j.matlet.2020.127356Vasiliy Pelenovich, Xiaomei Zeng, Rakhim Rakhimov, Wenbin Zuo, Canxin Tian, Dejun Fu, Bing YangAbstract Ar1000+ clusters accelerated by a voltage in the range of 10–15 kV were used to fabricate self-assembled nanoripples on the surface of ZnO needles. The influence of the cluster accelerating voltage and the lateral size of the needles on the ripple formation were studied. The nanoripples formed on a large surface of a needle resemble eolian sand ripples, whereas, those formed on the needle ...
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Cadmium and iron decorated ZnO nanoparticles: Effects on physical, electrochemical and antibacterial performanceCeramics International (IF 5.532) Pub Date : 2020-03-01 ,DOI:10.1016/j.ceramint.2019.10.278Neena D, Muhammad Humayun, Dingze Lu, Velram Balaji Mohan, DeJun Fu, Wei GaoAbstract Herein, powder samples of Cd/Fe co-doped ZnO nanoparticles have been synthesized via sol-gel route. The impact of co-doping on physical properties of the samples is examined by various techniques. The XRD patterns show that the samples possess hexagonal wurtzite structure of the parent ZnO. In photoluminescence spectra, red and blue shifts observed for near-band-edge UV emission and green-band ...
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Hierarchical hetero-architectures of in-situ g-C3N4-coupled Fe-doped ZnO micro-flowers with enhanced visible-light photocatalytic activitiesApplied Surface Science (IF 7.392) Pub Date : 2020-03-01 ,DOI:10.1016/j.apsusc.2019.145017D. Neena, Muhammad Humayun, Wenbin Zuo, C.S. Liu, Wei Gao, De Jun FuAbstract To more effectively boost H2 evolution and 2,4-dichlorophenol (2,4-DCP) degradation, graphite carbon nitride (CN) wrapped on ZnO and Fe-doped ZnO nanosheet-assembled, hierarchical micro-flowers were prepared using a facile method. These photocatalysts were characterized by various techniques and their photocatalytic activities were evaluated for water reduction and 2,4-DCP degradation. It ...
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Formation of nanoripples on ZnO flat substrates and nanorods by gas cluster ion bombardmentBeilstein Journal of Nanotechnology Pub Date : 2020-02-24 ,DOI:10.3762/bjnano.11.29Xiaomei Zeng, Vasiliy Pelenovich, Bin Xing, Rakhim Rakhimov, Wenbin Zuo, Alexander Tolstogouzov, Chuansheng Liu, Dejun Fu, Xiangheng Xiao
In the present study Ar+ cluster ions accelerated by voltages in the range of 5–10 kV are used to irradiate single crystal ZnO substrates and nanorods to fabricate self-assembled surface nanoripple arrays. The ripple formation is observed when the incidence angle of the cluster beam is in the range of 30–70°. The influence of incidence angle, accelerating voltage, and fluence on the ripple formation
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Enhanced sputtering yield of nanostructured samples under Ar+ cluster bombardmentVacuum (IF 4.11) Pub Date : 2020-02-01 ,DOI:10.1016/j.vacuum.2019.109096Vasiliy Pelenovich, Xiaomei Zeng, Wenbin Zuo, Alexander Tolstogouzov, Gennady Gololobov, Dmitriy Suvorov, Evgeniy Slivkin, Donghong Hu, Canxin Tian, Neena D, Dejun Fu, Bing YangAbstract Ar2900 clusters with energy in the range of 10.4–69 keV were used to bombard the surface of pressed Si nanopowder targets. High nonmonotonic sputtering yield is observed within the energy range of 10.4–34.5 keV, which is considered as enhanced by the finite size effect of the target particles. The cluster bombardment results in the sputtering of Si nanoparticles with a mean size of ca. 12 nm ...
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Microstructure and Rutherford Backscattering Spectrometry of Hard/Lubricant Mo-Ti-Al-N Multilayered Coatings Prepared by Multi-Arc Ion Plating at Low Substrate RotationCoatings (IF 3.236) Pub Date : 2020-01-23 ,DOI:10.3390/coatings10020101Zesong Wang, Canxin Tian, Alexander Tolstogouzov, Feng Liang, Changwei Zou, Songquan Li, Sergey I. Gusev, Muhammad Imran Yousaf, Vasiliy Pelenovich, Wenbin Zuo, Dejun Fu, Donghong Hu
To develop the hard and self-lubricating coatings applied for the industrial dry-cutting and die-casting machining tool fields, a series of MoTiAlN/MoN/Mo multilayered coatings were deposited on Si substrates under low substrate rotation by cathodic multi-arc ion plating. XRD, SEM, TEM, RBS, nanoindentation, and tribology tester were used to monitor the phase structure, morphology, component, nanohardness
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Synthesis of Allenyl-Bdan via the Cu(I)-Catalyzed Borylation of Propargylic Alcohols with the Unsymmetric Diboron Reagent (Bpin-Bdan).The Journal of Organic Chemistry (IF 4.198) Pub Date : 2020-01-22 ,DOI:10.1021/acs.joc.9b03319Lujia Mao,Chunlei Li,Libo Xiang,Dejun Fu,Wangyang Ma,Qing YeThe synthesis of allenyl-Bdan has been realized via the Cu(I)-catalyzed borylation of propargylic alcohols. This methodology offers a facile and efficient pathway toward allenyboronates with diverse functional groups due to the simple access to the substrates. The substrates bearing ester groups are well-tolerated in the synthesis of allenyl-Bdan under the Lewis acidic conditions. The structures of ...
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Low- and high-order nonlinear optical studies of ZnO nanocrystals, nanoparticles, and nanorodsThe European Physical Journal D (IF 1.611) Pub Date : 2019-11-15 ,DOI:10.1140/epjd/e2019-100163-yAnuradha Rout, Ganjaboy S. Boltaev, Rashid A. Ganeev, Konda Srinivasa Rao, Dejun Fu, Rakhim Y. Rakhimov, Saidislam S. Kurbanov, Shamsiddin Z. Urolov, Zafar S. Shaymardanov, Chunlei GuoAbstractVariable shapes and sizes of the zinc oxide nanostructures attract the attention due to the peculiarities of their nonlinear optical properties. We report the second-, third-, and high-order nonlinear optical studies of ZnO nanostructures using 800 nm, 40 fs pulses. We analyze the second harmonic generation as a function of the energy of the 800 nm laser pulses irradiating ZnO nanostructures ...
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Molybdenum Disulfide Nanosheet/Quantum Dot Dynamic Memristive Structure Driven by Photoinduced Phase Transition.Small (IF 15.153) Pub Date : 2019-09-20 ,DOI:10.1002/smll.201903809Xiao Fu,Lei Zhang,Hak D Cho,Tae Won Kang,Dejun Fu,Dongjin Lee,Sang Wuk Lee,Luying Li,Tianyu Qi,Abdul S Chan,Ziyodbek A Yunusov,Gennady N PaninMoS2 2D nanosheets (NS) with intercalated 0D quantum dots (QDs) represent promising structures for creating low-dimensional (LD) resistive memory devices. Nonvolatile memristors based 2D materials demonstrate low power consumption and ultrahigh density. Here, the observation of a photoinduced phase transition in the 2D NS/0D QDs MoS2 structure providing dynamic resistive memory is reported. The resistive ...
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Fabrication of ZnO/N-rGO composite as highly efficient visible-light photocatalyst for 2,4-DCP degradation and H2 evolutionApplied Surface Science (IF 7.392) Pub Date : 2019-09-01 ,DOI:10.1016/j.apsusc.2019.05.302D. Neena, Kiran Kumar Kondamareddy, Muhammad Humayun, Velram Balaji Mohan, Dingze Lu, DeJun Fu, Wei GaoAbstract Nitrogen-doped reduced graphene oxide (N-rGO) has been successfully hybridized with ZnO nanorods via solvothermal method. The physicochemical properties of the composite are investigated via different techniques. The optical and electrochemical analysis including photocurrent response, and electrochemical impedance spectroscopy revealed that ZnO/N-rGO nanocomposite exhibited increased visible-light ...
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Ion emission from solid electrolyte CsAg4Br2.68I2.32 film deposited on Ag-tip: Characteristics and applicationsVacuum (IF 4.11) Pub Date : 2019-09-01 ,DOI:10.1016/j.vacuum.2019.06.041Wenbin Zuo, Vasiliy O. Pelenovich, Alexander B. Tolstogouzov, Alexei E. Ieshkin, Xiaomei Zeng, Zhenguo Wang, Gennady Gololobov, Dmitriy Suvorov, Chuansheng Liu, Dejun Fu, Donghong HuAbstract We have developed a solid electrolyte ion source (SEIS) with CsAg4Br2.68I2.32 film deposited on a silver tip. In the paper, Ag+ ion emission was significantly enhanced and the ion current of 1.6 μA was obtained at 168 °C temperature and 20 kV accelerating voltage. I-T and I-U characteristics were well described by the field evaporation (FEV) model, and the surface potential barrier was estimated ...
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Small Al cluster ion implantation into Si and 4H‐SiCRapid Communications in Mass Spectrometry (IF 2.586) Pub Date : 2019-08-06 ,DOI:10.1002/rcm.8489Xiaomei Zeng,Vasiliy Pelenovich,Alexei Ieshkin,Andrey Danilov,Alexander Tolstogouzov,Wenbin Zuo,Jha Ranjana,Donghong Hu,Neena Devi,Dejun Fu,Xiangheng XiaoContinuously downscaling integrated circuit devices requires fabrication of shallower p‐n junctions. The ion implantation approach at low energy is subject to low beam current due to the Coulomb repulsion. To overcome this problem cluster ions can be used for implantation. In comparison with single ions, cluster ions possess lower energy per atom and reduced Coulomb repulsion resulting in high equivalent ...
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Charge exchange of H+, H2+, H3+ at energies of 1–30 keV in sodiumNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms (IF 1.279) Pub Date : 2019-07-01 ,DOI:10.1016/j.nimb.2018.09.044Zhenguo Wang,Ming Li,Wei Xiang,Dejun FuAbstract Charge-exchange reactions of H+, H2+ and H3+ at energies of 1–30 keV in sodium vapor were studied using the charge-exchange canal of a 2 × 1 MV tandem accelerator. Ion optics simulations were performed before measurements to ensure high beam transport efficiency in the beamline. The density of sodium vapor was calibrated with published attenuation cross-section data of He+-Na. Total attenuation ...
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Effect of the J – J Interaction of Excited States of the Rare-Earth Ion Pr 3+ on Magnetically Polarized Luminescence of Praseodymium-Yttrium Aluminum GarnetPhysics of the Solid State (IF 0.848) Pub Date : 2019-06-05 ,DOI:10.1134/s1063783419050378U. V. Valiev, Gary W. Burdick, R. R. Vildanov, R. Yu. Rakhimov, Dejun FuAbstractThe spectra of luminescence and magnetic circular polarization of luminescence of praseodymium–yttrium aluminum garnet Pr3+ : Y3Al5O12 (PrYAG) are studied in the visible spectral region at temperature T = 300 K. An analysis of spectral dependences of magnetooptical and optical spectra makes it possible to identify optical 4 f–4 f-transitions between Stark sublevels of multiplets 3P0, 3P1, 3Н5 ...
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Mechano-chemical synthesis of crystalline superionic conductor CsAg4Br3-xI2+x (x = 0.32) and its application for Ag+ ion-beam generationJournal of Alloys and Compounds (IF 6.371) Pub Date : 2019-06-01 ,DOI:10.1016/j.jallcom.2019.03.076Wenbin Zuo, Vasiliy Pelenovich, Alexander Tolstogouzov, Xiaomei Zeng, Zhenguo Wang, Xiaoqiang Song, Sergey I. Gusev, Canxin Tian, Dejun FuAbstract The mechano-chemical synthesis of crystalline superionic conductor CsAg4Br3-xI2+x was performed by the means of high-energy ball-milling using CsI-AgBr-AgI powders as precursors. The phase composition of the synthesized material was determined by X-ray diffraction and its variations versus the milling time and rotation rate were studied. Existence of a two-stage chemical reaction resulting ...
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Structure, conductivity, and ion emission properties of RbAg4I5 solid electrolyte film prepared by pulsed laser depositionChinese Physics B (IF 1.652) Pub Date : 2019-06-01 ,DOI:10.1088/1674-1056/28/6/060705Jun-Lian Chen, Wen-Bin Zuo, Xian-Wen Ke, Alexander B Tolstoguzov, Can-Xin Tian, Neena Devi, Ranjana Jha, Gennady N Panin, De-Jun FuWe fabricated a silver ion emitter based on the solid state electrolyte film of RbAg4I5 prepared by pulsed laser deposition. The RbAg4I5 target for PLD process was mechano-chemically synthesized by high-energy ball milling in Ar atmosphere using β-AgI and RbI as raw materials. The ion-conducting properties of RbAg4I5 were studied by alternating current (AC) impedance spectroscopy and the ionic conductivity ...
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Investigation of j – j “mixing” mechanism influence on the optical and magnetooptical properties of praseodymium yttrium-aluminum garnet PrYAGJournal of Luminescence (IF 4.171) Pub Date : 2019-03-01 ,DOI:10.1016/j.jlumin.2018.10.099Rakhim Yu. Rakhimov, Uygun V. Valiev, Gary W. Burdick, Ramil R. Vildanov, Dejun FuAbstract The spectra of the luminescence and magnetic circular polarization of luminescence (MCPL) in the praseodymium yttrium garnet aluminate Pr3+:YAG (PrYAG) have been studied within the visible spectral range at temperature T = 300 K. Analysis of the spectral dependences of the magnetooptical and optical spectra has made it possible to identify the optical 4f → 4f transitions occurring between ...
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