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| 1 | 分子束外延生长ZnSe自组织量子点光、电行为研究显示文摘分别应用光致发光、电容 电压和深能级瞬态傅里叶谱技术详细研究ZnSe自组织量子点样品的光学和电学行为 .光致发光温度关系表明ZnSe量子点的光致发光热猝火过程机理 .两步猝火过程的理论较好模拟和解释了相关的实验数据 .电容 电压测量表明样品表观载流子积累峰出现的深度 (样品表面下约 10 0nm处 )大约是ZnSe量子点层的位置 .深能级瞬态傅里叶谱获得的ZnSe量子点电子基态能级位置为ZnSe导带下的 0 11eV ,这与ZnSe量子点光致发光热猝火模型得到的结果一致 . | 卢励吾 王占国 C.L.Yang J.Wang Z.H.Ma I.K.Sou Weikun Ge | 2002 | 物理学报2002，51，2： | 5 |
| 2 | A gelatin-based artificial SEI for lithium deposition regulation and polysulfide shuttle suppression in lithium-sulfur batteries显示文摘Lithium-sulfur(Li-S) battery is one of the best candidates for the next-generation energy storage system due to its high theoretical capacity(1675 mA h-1),low cost and environment friendliness.However,lithium(Li) dendrites formation and polysulfide shuttle effect are two major challenges that limit the commercialization of Li-S batteries.Here we design a facile bifunctional interlayer of gelatin-based fibers(GFs),aiming to protect the Li anode surface from the dendrites growth and also hinder the polysulfide shuttle effect.We reveal that the 3D structural network of GFs layer with abundant polar sites helps to homogenize Li-ion flux,leading to uniform Li-ion deposition.Meanwhile,the polar moieties also immobilize the lithium polysulfides and protect the Li metal from the side-reaction.As a result,the anodeprotected batteries have shown significantly enhanced performance.A high coulombic efficiency of 96% after 160 cycles has been achieved in the Li-Cu half cells.The Li-Li symmetric cells exhibit a prolonged lifespan for 800 h with voltage hysteresis(10 mV).With the as-prepared GFs layer,the Li-S battery shows approximately 14% higher capacity retention than the pristine battery at 0.5 C after 100 cycles.Our work presents that this gelatin-based bi-functional interlayer provides a viable strategy for the manufacturing of advanced Li-S batteries. | Naseem Akhtar Xiaogang Sun Muhammad Yasir Akram Fakhar Zaman Weikun Wang Anbang Wang Long Chen Hao Zhang Yuepeng Guan Yaqin Huang | 2021 | Journal of Energy Chemistry2021，30，1： | 5 |
| 3 | Attapulgite nanorods assisted surface engineering for separator to achieve high-performance lithium–sulfur batteries显示文摘Lithium-sulfur(Li-S)batteries have been recognized as one of the most promising candidates for nextgeneration portable electronic devices,owing to their extremely high energy density and low cost.However,the dissolution of lithium polysulfides(LiPSs)and consequent'shuttle effect'seriously hinder the practical deployment of Li-S batteries.Herein,multi-metal oxide nanorods named attapulgite are proposed as multifunctional ionic sieve to immobilize LiPSs and further promote the regulation of LiPSs.Attapulgite,consisting of Al,Mg,Fe,Si and O ions,possesses more polar sites to immobilize LiPSs in comparison with single metal oxides.In addition,the catalytic nature(Fe ions)of attapulgite avails the LiPSs conversion reaction,which is further confirmed by the linear sweep voltammetry and electrochemical impedance spectroscopy.Benefited from the synergistic effect of multi-metal oxide and conductive carbon,the Li-S battery with the modified separator delivers remarkable discharge capacities of 1059.4 mAh g-1 and 792.5 mAh g-1 for the first and 200th cycle at 0.5 C,respectively.The work presents an effective way to improve the electrochemical performance of Li-S batteries by employing attapulgite nanorods assisted separator surface engineering. | Wenhao Sun Xiaogang Sun Naseem Akhtar Chengming Li Weikun Wang Anbang Wang Kai Wang Yaqin Huang | 2020 | Journal of Energy Chemistry2020，29，9： | 4 |
| 4 | Te0.045S0.955PAN composite with high average discharge voltage for Li–S battery显示文摘As a sulfur-containing cathode material,sulfide polyacrylonitrile(SPAN)is expected to be used for longlife lithium-sulfur battery because there is no shuttle effect occurred in its charge process.However,its specific capacity and discharge potential need to be further improved to satisfy the urgent demands for high-performance batteries.In this paper,Te0.045S0.955PAN composite was synthesized by co-heating TexS1-x and PAN,and the superior electrochemical performance to that of SPAN was obtained because of doping Te with high conductivity.The as-prepared Te0.045S0.955PAN composite possessed the specific capacity of 675 mAh g^-1 after 100 cycles at the current density of 0.1 A g^-1 with high capacity retention of96.6%compared to the second cycle.Especially,during cycling,Te0.045S0.955PAN showed average discharge voltages of 1.88-1.91 V,which were higher than 1.85-1.88 V for SPAN at the same current density.Thus doping Te provides a new strategy for increasing the energy density of SPAN. | Ke Wang Yuepeng Guan Zhaoqing Jin Weikun Wang Anbang Wang | 2019 | Journal of Energy Chemistry2019，28，12： | 3 |
| 5 | Distributionally Robust Optimal Dispatch of Offshore Wind Farm Cluster Connected by VSC-MTDC Considering Wind Speed Correlation显示文摘Multi-terminal voltage source converter-based highvoltage direct current(VSC-MTDC)transmission technology has become an important mode for connecting adjacent offshore wind farms(OWFs)to power systems.Optimal dispatch of an OWF cluster connected by the VSC-MTDC can improve economic operation under the uncertainty of wind speeds.A two-stage distributionally robust optimal dispatch(DROD)model for the OWF cluster connected by VSC-MTDC is established.The first stage in this model optimizes the unit commitment of wind turbines to minimize mechanical loss cost of units under the worst joint probability distribution(JPD)of wind speeds,while the second stage searches for the worst JPD of wind speeds in the ambiguity set(AS)and optimizes active power output of wind turbines to minimize the penalty cost of the generation deviation and active power loss cost of the system.Based on the Kullback–Leibler(KL)divergence distance,a data-driven AS is constructed to describe the uncertainty of wind speed,considering the correlation between wind speeds of adjacent OWFs in the cluster by their joint PD.The original solution of the two-stage DROD model is transformed into the alternating iterative solution of the master problem and the sub-problem by the column-and-constraint generation(C&CG)algorithm,and the master problem is decomposed into a mixedinteger linear programming and a continuous second-order cone programming by the generalized Benders decomposition method to improve calculation efficiency.Finally,case studies on an actual OWF cluster with three OWFs demonstrate the correctness and efficiency of the proposed model and algorithm. | Xiangyong Feng Shunjiang Lin Wanbin Liu Weikun Liang Mingbo Liu | 2023 | CSEE Journal of Power and Energy Systems2023，9，3： | 2 |
| 6 | Tape nanolithography:a rapid and simple method for fabricating flexible,wearable nanophotonic devices显示文摘This paper describes a tape nanolithography method for the rapid and economical manufacturing of flexible,wearable nanophotonic devices.This method involves the soft lithography of a donor substrate with air-void nanopatterns,subsequent deposition of materials onto the substrate surface,followed by direct taping and peeling of the deposited materials by an adhesive tape.Without using any sophisticated techniques,the nanopatterns,which are preformed on the surface of the donor substrate,automatically emerge in the deposited materials.The nanopatterns can then be transferred to the tape surface.By leveraging the works of adhesion at the interfaces of the donor substrate-deposited material-tape assembly,this method not only demonstrates sub-hundred-nanometer resolution in the transferred nanopatterns on an area of multiple square inches but also exhibits high versatility and flexibility for configuring the shapes,dimensions,and material compositions of tape-supported nanopatterns to tune their optical properties.After the tape transfer,the materials that remain at the bottom of the air-void nanopatterns on the donor substrate exhibit shapes complementary to the transferred nanopatterns on the tape surface but maintain the same composition,thus also acting as functional nanophotonic structures.Using tape nanolithography,we demonstrate several tapesupported plasmonic,dielectric,and metallo-dielectric nanostructures,as well as several devices such as refractive index sensors,conformable plasmonic surfaces,and Fabry-Perot cavity resonators.Further,we demonstrate tape nanolithography-assisted manufacturing of a standalone plasmonic nanohole film and its transfer to unconventional substrates such as a cleaved facet and the curved side of an optical fiber. | Qiugu Wang Weikun Han Yifei Wang Meng Lu Liang Dong | 2018 | Microsystems & Nanoengineering2018，4，1： | 2 |
| 7 | A novel cathode material based on polyaniline used for lithium/ sulfur secondary battery 显示文摘 | Zhang Shichao Zhang Lan Wang Weikun | 2010 | Synthetic Metals2010，160，17： | 1 |
| 8 | PET/CT for the evaluation and the diagnostic value of of non - small cell NSCLC in mediastinal lymph node metastasesSouthern Medical University 显示文摘 | Xiang - Dong Li Yin Jilin Liu Weikun etc | 2010 | 30 (3) :506 - 5082010，30，3： | 1 |
| 9 | Foundations of statistical natural language processing显示文摘 | WEIKUN G | 2002 | Acm Sigmod Record2002，31，3： | 1 |
| 10 | lmprove Rate Capability of the Sulfur Cathode Using a Gelatin Binder显示文摘 | Wang Qinqin Wang Weikun Huang Yaqin | 2011 | Journal of Electrochemical Society2011，158，6： | 1 |
| 11 | Structural change of the porous sulfur cathode using gelatin as a binder during discharge and charge显示文摘 | Wang You Huang Yaqin Wang Weikun | 2009 | Electrochimica Acta2009，54，16： | 1 |
| 12 | Application of gelatin as a binder for the sulfur cathode in lithium- sulfur batteries显示文摘 | Sun Jing Huang Yaqing Wang Weikun | 2008 | Electrochimica Acta2008，10，6： | 1 |
| 13 | Quantitative analyses of lignin hydrothermolysates from subcritical water and water-ethanol systems显示文摘 | JIANG Weikun LYU Gaojin LIU Yu | 2014 | I&EC Research2014，53，10： | 1 |
| 14 | Thermodynamic assessment of the Au - Ti system 显示文摘 | Weikun Luo Zhanpeng Jin Huashan Liu | 2001 | Calphad2001，25，1： | 1 |
| 15 | PET/CT for the evaluation and the diagnostic value of of non - small cell NSCLC in mediastinal lymph node metastasesSouthern 显示文摘 | Xiang - Dong Li Yin Jilin Liu Weikun etc | 2010 | Medical University2010，30，3： | 1 |
| 16 | Sub-nanometer ultrathin epitaxy of AlGaN and its application in efficient doping显示文摘Solving the doping asymmetry issue in wide gap semiconductors is a key dificulty and long-standing challenge for device applications.Here,a desorption-tailoring strategy is proposed to juggle the carrier concentration and transport.Specific to the p-doping issue in Al-rich AlGaN,self-assembled p-AlGaN superlattices with an average Al composition of over 50%are prepared by adopting this approach.The hole concentration as high as 8.1×10^(18)cm^(-3)is thus realized at room temperature,which is attributed to the signifcant reduction of effective Mg activation energy to 17.5 meV through modulating the activating path,as well as the highlighted Mg surface-incorporation by an intentional interruption for desorption.More importantly,benefting from the constant ultrathin barrier thickness of only three monolayers via this approach,vertical miniband transport of holes is verifed in the p-AlGaN superlattices,greatly satisfying the demand of hole injection in device application.280 nm deep-ultraviolet light emitting diodes are then fabricated as a demo with the desorption-tailored Al-rich p-AlGaN superlattices,which exhibit a great improvement of the carrier injection efficiency and light extraction efficiency,thus leading to a 55.7%increase of the light output power.This study provides a solution for p-type doping of Al-rich AlGaN,and also sheds light on solving the doping asymmetry issue in general for wide-gap semiconductors. | Jiaming Wang Mingxing Wang Fujun Xu Baiyin Liu Jing Lang Na Zhang Xiangning Kang Zhixin Qin Xuelin Yang Xinqiang Wang Weikun Ge Bo Shen | 2022 | Light(Science & Applications)2022，11，4： | 1 |
| 17 | Photo-induced macro/mesoscopic scale ion displacement in mixed-halide perovskites:ring structures and ionic plasma oscillations显示文摘Contrary to the common belief that the light-induced halide ion segregation in a mixed halide alloy occurs within the illuminated area,we find that the Br ions released by light are expelled from the illuminated area,which generates a macro/mesoscopic size anion ring surrounding the illuminated area,exhibiting a photoluminescence ring.This intriguing phenomenon can be explained as resulting from two counter-balancing effects:the outward diffusion of the light-induced free Br ions and the Coulombic force between the anion deficit and surplus region.Right after removing the illumination,the macro/mesoscopic scale ion displacement results in a built-in voltage of about 0.4 V between the ring and the center.Then,the displaced anions return to the illuminated area,and the restoring force leads to a damped ultra-low-frequency oscillatory ion motion,with a period of about 20-30 h and lasting over 100 h.This finding may be the first observation of an ionic plasma oscillation in solids.Our understanding and controlling the'ion segregation'demonstrate that it is possible to turn this commonly viewed'adverse phenomenon'into novel electronic applications,such as ionic patterning,self-destructive memory,and energy storage. | Xiaoxiao Sun Yong Zhang Weikun Ge | 2022 | Light(Science & Applications)2022，11，10： | 1 |
| 18 | Influence of pH of gelatin solution on cycle erformance of the sulfur cathode显示文摘 | Zhang Wuyu Huang Yaqin Wang Weikun | 2010 | Journal of The Electrochemistry Society2010，157，4： | 1 |
| 19 | Hierarchical approach to exact symbolic analysis of large analog circuits显示文摘 | Sheldon X D Tan Weikun Guo Zhenyu Qi | 2005 | IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems2005，24，8： | 1 |
| 20 | CytotoxicityofLaGHMSbyMTT显示文摘 | ZhaoNa WeiKun MiaoGuoGhou etal | 2010 | JournalofClinicalRehabilitaGtiveTissueEngineeringResearch2010，14，25： | 1 |
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