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| 1 | Thermoelectric properties of In-Hg co-doping in SnTe:Energy band engineering显示文摘Synergistic effect of band convergence and resonant level could be manipulated in SnTe by co-doping In and Hg,leading to a potential thermoelectric performance enhancement in a much wider temperature range.In this work we carefully investigated thermoelectric properties of the In-Hg co-doped SnTe,synthesized by a hot pressing method.With this co-doping the Seebeck coefficients of the co-doped samples were greatly improved(over 50 mVK^(-1))at the room temperature.Although power factors of the In-Hg co-doped SnTe were also able to be optimized,the peak ZT(0.9 at 850 K in Sn_(0.98)Bi_(0.02)Te-1%HgInTe_(2)),however,is not high enough when comparing to other co-doped SnTe systems.This may be caused by the relatively high lattice thermal conductivity.An apparent competition between band convergence doping and resonant level doping was observed in our experiment.The results suggest that band engineering via co-doping should be further understood in order to optimize the thermoelectric properties inside the material system. | Xiaofang Tan Guoqiang Liu Jingtao Xu Xiaojian Tan Hezhu Shao Haoyang Hu Haochuan Jiang Yalin Lu Jun Jiang | 2018 | Journal of Materiomics2018,4,1: | 3 |
| 2 | A Comparison of Incentive Policies for the Optimal Layout of CCUS Clusters in China’s Coal-Fired Power Plants Toward Carbon Neutrality显示文摘1.Introduction China has announced that it will adopt forceful policies and measures and strive to achieve peak carbon dioxide(CO_(2))emissions before 2030 and carbon neutrality before 2060—aims that are largely consistent with the goal to limit warming to 1.5C[1].Achieving this target requires the deep decarbonization of China’s entire economy,with a particular focus on coal-fired power plants(CFPPs). | Wenhui Chen Xi Lu Yalin Lei Jian-Feng Chen | 2021 | Engineering2021,7,12: | 2 |
| 3 | Sol–gel preparation and enhanced photocatalytic performance of Cu-doped ZnO nanoparticles显示文摘 | Min Fu Yalin Li Siwei wu Peng Lu Jing Liu Fan Dong | 2011 | Applied Surface Science2011,,4: | 1 |
| 4 | Enhancing near infrared solar cell response using upconverting transparent eeramie显示文摘 | M Liu Yalin Lu Z B Xie G M Chow | 2011 | Solar Energy Materials & Solar Cells2011,95,: | 1 |
| 5 | Ferromagnetic and ferroelectric properties of Aurivillius phase Bi_9Fe_(4.7)Me_(0.3)Ti_3O_(27)(Me 5 Fe, Co, Ni, Mn)显示文摘New Aurivillius phase Bi9Fe4.7Me0.3Ti3O27(Me = Fe, Co, Ni, Mn) oxides have been prepared using a citrate combustion method. X-ray diffraction on powders and high-resolution transmission electron microscopy investigation confirmed that the Bi9Fe4.7Me0.3Ti3O27 samples are with an eight-layer structure. Both ferromagnetic and ferroelectric investigations suggested that Co or Ni substitution could enhance their multiferroic properties,while Mn substitution depressed them. Among all the samples, Bi9Fe4.7Co0.3Ti3O27 sample exhibits the largest remnant polarization of Pr*3.8 l C/cm2, and the largest remnant magnetization of Mr*0.06 lB/f.u. with a Curie temperature about 764 K, while the Bi9Fe4.7Ni0.3Ti3O27 sample has the largest spontaneous magnetization(0.26 lB/f.u.). The improved ferromagnetic properties ofboth Bi9Fe4.7Co0.3Ti3O27 and Bi9Fe4.7Ni0.3Ti3O27 can be ascribed to the spin canting of magnetic ion-based sublattices via the Dzyaloshinskii–Moriya interaction and also the magnetic ions exchanging interactions(Fe3–O–Co3or Fe3–O–Ni3). | Guopeng Wang Shujie Sun Yan Huang Jianlin Wang Ranran Peng Zhengping Fu Yalin Lu | 2014 | Chinese Science Bulletin2014,59,36: | 1 |
| 6 | Frequency-doubling of a CW Fiber Laser Using PPKTP, PPMgSLT, and PPMgLN 显示文摘 | KONTUR F J DAJANI I LU YALIN etal | 2007 | Optics Express2007,15,12: | 1 |
| 7 | High-Efficiency Intracavity Continuous-Wave Green-Light Generation by Quasiphase Matching in a Bulk Periodically Poled MgO: LiNbO 3 Crystal显示文摘 | Shaowei Chu Ying Zhang Bin Wang Yong Bi Yalin Lu | 2008 | Advances in OptoElectronics2008,,: | 1 |
| 8 | InAs/GaAs quantum dot intermixing induced by proton implantation 显示文摘 | Yalin Ji Wei Lu Guibin Chen | 2002 | J Appl Phys2002,,93: | 1 |
| 9 | Magnetic logic inverter from crossed structures of defect-free graphene with large unsaturated room temperature negative magnetoresistance显示文摘Introducing defects into graphene has been widely utilized to realize the negative magnetoresistanee(MR)effect in graphene.However,the reported graphene negative MR exhibits only^10%under 10 T at room temperature to date,which extremely limits the resolution of future spintronics devices.Moreover,intentional defect introduction can also cause unintentional degradation in graphene's intrinsic properties.In this paper,we report a magnetic logic inverter based on a crossed structure of defect-free graphene,resulting in a substantial gain of 4.81 mV/T while exhibiting room temperature operation.This crossed structure of graphene shows large unsaturated room temperature negative MR with an enhancement of up to 1,000%at 9 T.A transition behavior between negative and positive MR is observed in this crossed structure and the transition temperature can be tuned by a ratio of the conductivity between in-plane and out-of-plane transport.Our results open an intriguing path for future two-dimensional spintronics device applications. | Chao Feng Junxiang Xiang Ping Liu Xiangqi Wang Jianlin Wang Guojing Hu Meng Huang Zhi Wang Zengming Zhang Yuan Liu Yalin Lu Bin Xiang | 2019 | Nano Research2019,12,10: | 1 |
| 10 | Luminescence dating of reticulated red clay buried in Lanshanmiao Paleolithic site in Zhejiang Province,southern China显示文摘The Lanshanmiao(LSM) Palaeolithic site,which was excavated in the summer of 2017 by the Zhejiang Provincial Institute of Cultural Relics and Archaeology,is the only excavated palaeolithic site in central Zhejiang Province to date.Luminescence dating methods,including optical stimulated luminescence(OSL) and thermal transfer OSL(TT-OSL) for quartz and post-infrared(IR) stimulated luminescence(p IRIR290) for feldspar,were used to determine the age of the LSM site.The results showed that the LSM section developed before 145.5 ± 12.5 ka and ended after 17.1 ± 1.0 ka.The TT-OSL dating of samples NJU2576 and NJU2615 showed that palaeolithic artifact-bearing layer was between 150 and 100 ka in age.The age range of the palaeolithic layer mainly corresponded to the transition between Marine Isotope Stage(MIS) 6 and MIS5.Our study showed that hominins prominently occupied the LSM site during the glacial and interglacial stages,when it exhibited a floodplain environment. | LU Ying SUN Xuefeng XU Xinmin LIU Yalin Yl Shuangwen | 2020 | Journal of Geographical Sciences2020,30,9: | 1 |
| 11 | Mini review on photocatalysis of titanium dioxide nanoparticles and their solar applications 显示文摘 | Lan Yucheng Lu Yalin Ren Zhifeng | 2013 | Nano Energy2013,2,5: | 1 |
| 12 | Porosity, permeability and rock mechanics of Lower Silurian Longmaxi Formation deep shale under temperature-pressure coupling in the Sichuan Basin, SW China显示文摘To investigate the porosity, permeability and rock mechanics of deep shale under temperature-pressure coupling, we selected the core samples of deep shale from the Lower Silurian Longmaxi Formation in the Weirong and Yongchuan areas of the Sichuan Basin for porosity and permeability experiments and a triaxial compression and sound wave integration experiment at the maximum temperature and pressure of 120 ℃ and 70 MPa. The results show that the microscopic porosity and permeability change and the macroscopic rock deformation are mutually constrained, both showing the trend of steep and then gentle variation. At the maximum temperature and pressure, the porosity reduces by 34%–71%, and the permeability decreases by 85%–97%. With the rising temperature and pressure, deep shale undergoes plastic deformation in which organic pores and clay mineral pores are compressed and microfractures are closed, and elastic deformation in which brittle mineral pores and rock skeleton particles are compacted. Compared with previous experiments under high confining pressure and normal temperature,the experiment under high temperature and high pressure coupling reveals the effect of high temperature on stress sensitivity of porosity and permeability. High temperature can increase the plasticity of the rock, intensify the compression of pores due to high confining pressure, and induce thermal stress between the rock skeleton particles, allowing the reopening of shale bedding or the creation of new fractures along weak planes such as bedding, which inhibits the decrease of permeability with the increase of temperature and confining pressure. Compared with the triaxial mechanical experiment at normal temperature, the triaxial compression experiment at high temperature and high pressure demonstrates that the compressive strength and peak strain of deep shale increase significantly due to the coupling of temperature and pressure. The compressive strength is up to 435 MPa and the peak strain exceeds 2%, indicating that high temperature is not conducive to fracture initiation and expansion by increasing rock plasticity. Lithofacies and mineral composition have great impacts on the porosity, permeability and rock mechanics of deep shale. Shales with different lithologies are different in the difficulty and extent of brittle failure. The stress-strain characteristics of rocks under actual geological conditions are key support to the optimization of reservoir stimulation program. | SUN Chuanxiang NIE Haikuan SU Haikun DU Wei LU Ting CHEN Yalin LIU Mi LI Jingchang | 2023 | Petroleum Exploration and Development2023,50,1: | 1 |
| 13 | Planar-symmetry-breaking induced antisymmetric magnetoresistance in van der Waals ferromagnet Fe_(3)GeTe_(2)显示文摘Recently discovered magnetic van der Waals(vdW)materials provide an ideal platform to explore low-dimensional magnetism and spin transport.Its vdW interaction nature opens up unprecedented opportunities to build vertically stacked heterostructures with novel properties and functionalities.By engineering the planar structure as an alternative degree of freedom,herein we demonstrate an antisymmetric magnetoresistance(MR)in a vdW Fe_(3)GeTe_(2)flake with a step terrace that breaks the planar symmetry.This antisymmetric MR originates from a sign change of the anomalous Hall effect and the continuity of the current transport near the boundary of magnetic domains at the step edge.A repeatable domain wall due to the unsynchronized magnetization switching is responsible for this sign change.Such interpretation is supported by the observation of field-dependent domain switching,and the step thickness,temperature,and magnetic field orientation dependent MR.This work opens up new opportunities to encode magnetic information by controlling the planar domain structures in vdW magnets. | Ping Liu Caixing Liu Zhi Wang Meng Huang Guojing Hu Junxiang Xiang Chao Feng Chen Chen Zongwei Ma Xudong Cui Hualing Zeng Zhigao Sheng Yalin Lu Gen Yin Gong Chen Kai Liu Bin Xiang | 2022 | Nano Research2022,15,3: | 0 |
| 14 | Mechanism of Grain Refinement Induced by Laser Shock Processing in AZ31 Magnesium Alloy显示文摘In order to study the mechanism of grain refinement induced by laser shock processing(LSP) in AZ31 magnesium alloy, the specimens were processed with Nd:glass pulse laser shocking and the microstructures of LSP specimens near the surface were examined by optical microscopy and transmission electron microscopy. Optical microstructure pictures show that the size of grains formed in the top surface layer is about 4-6 μm, which is obviously different from the original grains(with an average size of 20-30 μm) in the substrate in AZ31 magnesium alloy. Transmission electron microscopic observations show that the grain refinement process of AZ31 alloy by laser shock processing includes three stages. At the early stage of LSP, the lower strain and strain rate activates the three dislocation slip systems which include basal plane system, prismatic plane system and pyramidal plane system, with the deformation governed mainly by dislocation. At the intermediary stage, dislocation slip is hindered at grain boundaries and becomes more difficult to continue during LSP. Then, parallel twins appear, which divide the original coarse grains into finer twin platelets. Finally, high-density dislocation walls are formed and subdivide twins into sub-grains. Dynamic recrystallization occurs in the process of further deformation and forms recrystallized grains when strain energy reaches the value needed by recrystallization, which leads to refinement of the grains in the top surface layer. | 李兴成 ZHANG Yongkang ZHANG Qinglai ZHOU Jinyu LU Yalin CHEN Jufang | 2016 | Journal of Wuhan University of Technology(Materials Science)2016,31,3: | 0 |
| 15 | Molecular-level proton acceptor boosts oxygen evolution catalysis to enable efficient industrial-scale water splitting显示文摘Industrial water splitting has long been suppressed by the sluggish kinetics of the oxygen evolution reaction(OER),which requires a catalyst to be efficient.Herein,we propose a molecular-level proton acceptor strategy to produce an efficient OER catalyst that can boost industrial-scale water splitting.Molecular-level phosphate(-PO_(4))group is introduced to modify the surface of PrBa_(0.5)Ca_(0.5)Co_(2)O_(5)+δ(PBCC).The achieved catalyst(PO_(4)-PBCC)exhibits significantly enhanced catalytic performance in alkaline media.Based on the X-ray absorption spectroscopy results and density functional theory(DFT)calculations,the PO_(4)on the surface,which is regarded as the Lewis base,is the key factor to overcome the kinetic limitation of the proton transfer process during the OER.The use of the catalyst in a membrane electrode assembly(MEA)is further evaluated for industrial-scale water splitting,and it only needs a low voltage of 1.66 V to achieve a large current density of 1 A cm^(-2).This work provides a new molecular-level strategy to develop highly efficient OER electrocatalysts for industrial applications. | Yaobin Wang Qian Lu Xinlei Ge Feng Li Le Chen Zhihui Zhang Zhengping Fu Yalin Lu Yang Song Yunfei Bu | 2024 | Green Energy & Environment2024,9,2: | 0 |
| 16 | Batch fabrication of MoS_(2) devices directly on growth substrates by step engineering显示文摘Monolayer molybdenum disulfide(MoS_(2))has emerged as one of the most promising channel materials for next-generation nanoelectronics and optoelectronics owing to its atomic thickness,dangling-bond-free flat surface,and high electrical quality.Currently,high-quality monolayer MoS_(2)wafers are primarily grown on sapphire substrates incompatible with conventional device fabrication,and thus transfer processes to a suitable substrate are typically required before the device can be processed.Here,we demonstrate the batch production of transfer-free MoS2 top-gate devices directly on sapphire growth substrates via step engineering.By introducing substrate steps on growth substrate sapphire,high-κdielectric layers with superior quality and uniform can be directly deposited on the epitaxially grown monolayer MoS_(2).For the substrate with a maximum step density of 100μm^(−1),the gate capacitance can reach~1.87μF∙cm^(−2),while the interface trap state density(Dit)can be as low as~7.6×10^(10)cm^(−2)∙eV^(−1).The direct deposition of high-quality dielectric layers on grown monolayer MoS2 enables the batch fabrication of top-gate devices devoid of transfer and thus excellent device yield of>96%,holding great promise for large-scale twodimensional(2D)integrated circuits. | Lu Li Yalin Peng Jinpeng Tian Fanfan Wu Xiang Guo Na Li Wei Yang Dongxia Shi Luojun Du Guangyu Zhang | 2023 | Nano Research2023,16,11: | 0 |
| 17 | Tensile Properties and Wear Resistance of Mg Alloy Containing High Si as Implant Materials显示文摘Magnesium alloy has been considered as one of the third-generation biomaterials for the regeneration and support of functional bone tissue.As a regeneration implant material with great potential applications,in-situ Mg_(2)Si phase reinforced Mg-6Zn cast alloy was comprehensively studied and expected to possess excellent mechanical properties via the refining and modifying of Mg_(2)Si reinforcements.The present study demonstrates that the primary and eutectic Mg_(2)Si phase can be greatly modified by the yttrium(Y)addition.The size of the primary Mg_(2)Si phases can be reduced to~20μm with an addition of 0.5 wt.%Y.This phenomenon is mainly attributed to the poisoning effect of the Y element.Moreover,wear resistance and tensile properties of the ternary alloy have also been improved by the Y addition.Mg-6Zn-4Si-0.5Y alloy exhibits optimal tensile properties and wears resistance.The ultimate tensile strength and the elongation of the alloy with 0.5 wt.%Y are 50%and 65%higher than those of the ternary alloy,respectively.Excessive Y addition(1.0 wt.%)deteriorates the tensile properties of Mg-Zn-Si alloy.The improvement of the tensile properties is mainly due to the modification of primary and eutectic Mg_(2)Si phases as well as the solid solution strengthening of the Y atoms.This study provides a certain implication for the application of Mg-Zn-Si alloys containing Y elements as regeneration implants. | Mengqi Cong Yang Zhang Yunlong Zhang Xiao Liu Yalin Lu Xiaoping Li | 2023 | Journal of Renewable Materials2023,11,4: | 0 |
| 18 | Real- and momentum-indirect neutral and charged excitons in a multi-valley semiconductor显示文摘Excitons dominate the photonic and optoelectronic properties of a material.Although significant advancements exist in understanding various types of excitons,progress on excitons that are indirect in both real-and momentum-spaces is still limited.Here,we demonstrate the real-and momentum-indirect neutral and charged excitons(including their phonon replicas)in a multi-valley semiconductor of bilayer MoS_(2),by performing electric-field/doping-density dependent photoluminescence.Together with first-principles calculations,we uncover that the observed real-and momentum-indirect exciton involves electron/hole from K/Γvalley,solving the longstanding controversy of its momentum origin.Remarkably,the binding energy of real-and momentum-indirect charged exciton is extremely large(i.e.,~59 meV),more than twice that of real-and momentum-direct charged exciton(i.e.,~24 meV).The giant binding energy,along with the electrical tunability and long lifetime,endows real-and momentum-indirect excitons an emerging platform to study many-body physics and to illuminate developments in photonics and optoelectronics. | Zhiheng Huang Yuhui Li Tao Bo Yanchong Zhao Fanfan Wu Lu Li Yalong Yuan Yiru Ji Le Liu Jinpeng Tian Yanbang Chu Xiaozhou Zan Yalin Peng Xiuzhen Li Yangkun Zhang Kenji Watanabe Takashi Taniguchi Zhipei Sun Wei Yang Dongxia Shi Shixuan Du Luojun Du Guangyu Zhang | 2023 | National Science Open2023,2,4: | 0 |
| 19 | Regulation effects of water and nitrogen on yield,water,and nitrogen use efficiency of wolfberry显示文摘Wolfberry(Lycium barbarum L.)is important for health care and ecological protection.However,it faces problems of low productivity and resource utilization during planting.Exploring reasonable models for water and nitrogen management is important for solving these problems.Based on field trials in 2021 and 2022,this study analyzed the effects of controlling soil water and nitrogen application levels on wolfberry height,stem diameter,crown width,yield,and water(WUE)and nitrogen use efficiency(NUE).The upper and lower limits of soil water were controlled by the percentage of soil water content to field water capacity(θ_(f)),and four water levels,i.e.,adequate irrigation(W0,75%-85%θ_(f)),mild water deficit(W1,65%-75%θ_(f)),moderate water deficit(W2,55%-65%θ_(f)),and severe water deficit(W3,45%-55%θ_(f))were used,and three nitrogen application levels,i.e.,no nitrogen(N0,0 kg/hm^(2)),low nitrogen(N1,150 kg/hm^(2)),medium nitrogen(N2,300 kg/hm^(2)),and high nitrogen(N3,450 kg/hm^(2))were implied.The results showed that irrigation and nitrogen application significantly affected plant height,stem diameter,and crown width of wolfberry at different growth stages(P<0.01),and their maximum values were observed in W1N2,W0N2,and W1N3 treatments.Dry weight per plant and yield of wolfberry first increased and then decreased with increasing nitrogen application under the same water treatment.Dry weight per hundred grains and dry weight percentage increased with increasing nitrogen application under W0 treatment.However,under other water treatments,the values first increased and then decreased with increasing nitrogen application.Yield and its component of wolfberry first increased and then decreased as water deficit increased under the same nitrogen treatment.Irrigation water use efficiency(IWUE,8.46 kg/(hm^(2)·mm)),WUE(6.83 kg/(hm^(2)·mm)),partial factor productivity of nitrogen(PFPN,2.56 kg/kg),and NUE(14.29 kg/kg)reached their highest values in W2N2,W1N2,W1N2,and W1N1 treatments.Results of principal component analysis(PCA)showed that yield,WUE,and NUE were better in W1N2 treatment,making it a suitable water and nitrogen management mode for the irrigation area of the Yellow River in the Gansu Province,China and similar planting areas. | GAO Yalin QI Guangping MA Yanlin YIN Minhua WANG Jinghai WANG Chen TIAN Rongrong XIAO Feng LU Qiang WANG Jianjun | 2024 | Journal of Arid Land2024,16,1: | 0 |
| 20 | Pomegranate-like C_(60)@cobalt/nitrogen-codoped porous carbon for high-performance oxygen reduction reaction and lithium-sulfur battery显示文摘Porous carbon materials play essential roles in electrocatalysis and electrochemical energy storage.It is of significant importance to rationally design and tune their porous structure and active sites for achieving high electrochemical activity and stability.Herein,we develop a novel approach to tune the morphology of porous carbon materials(PCM)by embedding fullerene C_(60),achieving improved performance of oxygen reduction reaction(ORR)and lithium-sulfur(Li-S)battery.Owing to the strong interaction between C_(60)and imidazole moieties,pomegranate-like hybrid of Ow-embedded zeolitic imidazolate framework(ZIF-67)precursor is synthesized,which is further pyrolyzed to form C_(60)-embedded cobalt/nitrogen-codoped porous carbon materials(abbreviated as C_(60)@Co-N-PCM).Remarkably,the unique structure of C_(60)@Co-N-PCM offers excellent ORR electrocatalytic activity and stability in alkaline solutions,outperforming the commercial Pt/C(20 wt.%)catalyst.Besides,C_(60)@Co-N-PCM as a novel cathode delivers a high specific capacity of-900 mAh·g^(-1) at 0.2 C rate in Li-S batteries,which is superior to the pristine ZIF-67-derived PCM without embedding C_(60). | Jianhua Wu Shiyang Wang Zhanwu Lei Runnan Guan Muqing Chen Pingwu Du Yalin Lu Ruiguo Cao Shangfeng Yang | 2021 | Nano Research2021,14,8: | 0 |