|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Template-directed assembly of pentacene molecules on epitaxial graphene on Ru(0001)显示文摘 | Haitao Zhou Lizhi Zhang Jinhai Mao Geng Li Yi Zhang Yeliang Wang Shixuan Du Werner A. Hofer Hong-Jun Gao | 2013 | Nano Research2013，6，2： | 2 |
| 2 | Construction of two-dimensional hydrogen clusters on Au(111) directed by phthalocyanine molecules显示文摘低维的 H2 总数成功地在 Au (111 ) 表面上被制作了并且借助于扫描通道显微镜学的低温度调查了。我们使用锰酞毒(MnPc ) 分子在 Au (111 ) 表面上抛锚了高效地收集并且卡住氢分子。一二维(2D ) 分子的氢簇在 MnPc 附近被形成。氢簇展出偏爱依赖者地形学和空间依赖者的传导力系列,它被指数地减少的阀值精力从中央 MnPc 与距离文饰激活 H2 分子的运动。这指数的落下在 2D 簇揭示界面的阶段行为。 | Kai Yang Wende Xiao Liwei Liu Xiangmin Fei Hui Chen Shixuan Du Hong-Jun Gao | 2014 | Nano Research2014，7，1： | 2 |
| 3 | Construction of bilayer PdSe2 on epitaxial graphene显示文摘Two-dimensional (2D) materials have received significant attention due totheir unique physical properties and potential applications in electronics andoptoelectronics. Recent studies have demonstrated that exfoliated PdSe2, alayered transition metal dichalcogenide (TMD), exhibits ambipolar field-effecttransistor (FET) behavior with notable performance and good air stability, andthus serves as an emerging candidate for 2D electronics. Here, we report thegrowth of bilayer PdSe2 on a graphene-SiC(0001) substrate by molecular beamepitaxy (MBE). A bandgap of 1.15±0.07 eV was revealed by scanning tunnelingspectroscopy (STS). Moreover, a bandgap shift of 0.2 eV was observed in PdSe2layers grown on monolayer graphene as compared to those grown on bilayergraphene. The realization of nanoscale electronic junctions with atomicallysharp boundaries in 2D PdSe2 implies the possibility of tuning its electronicor optoelectronic properties. In addition, on top of the PdSe2 bilayers, PdSe2nanoribbons and stacks of nanoribbons with a fixed orientation have beenfabricated. The bottom-up fabrication of low-dimensional PdSe2 structures isexpected to enable substantial exploration of its potential applications. | En Li Dongfei Wang Peng Fan Ruizi Zhang Yu-Yang Zhang Geng Li Jinhai Mao Yeliang Wang Xiao Lin Shixuan Du Hong-Jun Gao | 2018 | Nano Research2018，11，11： | 2 |
| 4 | Spectroscopic signatures of edge states in hexagonal boron nitride显示文摘We use Z-contrast imaging and atomically resolved electron energy-loss spectroscopy on an aberration-corrected scanning transmission electron microscope to investigate the local electronic states of boron atoms at different edge structures in monolayer and bilayer h-BN.We find that edges with bonding unsaturated sp2 boron atoms have a unique spectroscopic signature with a prominent pre-peak at - 190.2 eV in the B K-edge fine structure.First-principles calculations reveal that the observed pre-peak arises from excitations to the in-plane lowest-energy empty sp2 boron dangling bonds at the B-terminated edge.This spectroscopic signature can serve as a fingerprint to explore new edge structures in h-BN. | Chuang Gao Lei Tao Yu-Yang Zhang Shixuan Du Sokrates T. Pantelides Juan Carlos Idrobo Wu Zhou Hong-Jun Gao | 2019 | Nano Research2019，12，7： | 1 |
| 5 | Multi-oriented moiré superstructures of graphene on Ir(111): experimental observations and theoretical models显示文摘 | Lei Meng Rongting Wu Lizhi Zhang Linfei Li Shixuan Du Yeliang Wang H-J Gao | 2012 | Journal of Physics: Condensed Matter2012，，： | 1 |
| 6 | Construction of 2D Atomic Crystals on Transition Metal Surfaces: Graphene, Silicene, and Hafnene显示文摘 | Yi Pan Lizhi Zhang Li Huang Linfei Li Lei Meng Min Gao Qing Huan Xiao Lin Yeliang Wang Shixuan Du Hans‐Joachim Freund Hong‐Jun Gao | 2014 | Small2014，，： | 1 |
| 7 | Tuning the morphology of chevron-type graphene nanoribbons by choice of annealing temperature显示文摘Bottom-up synthesis of graphene nanoribbons (GNRs) by surface-assisted polymerization and cyclodehydrogenation of specifically designed precursor monomers has been shown to yield precise edges and doping.Here we use a precursor monomer containing sulfur atoms to fabricate nanostructures on a Au(111) surface at different annealing temperatures.The nanostructures have distinct configurations,varying from sulfur-doped polymers to sulfur-doped chevron-type GNRs (CGNRs) and,finally,pristine graphene nanoribbons with specific edges of periodic five-member carbon rings.Non-contact atomic force microscopy provides clear evidence for the cleavage of C-S bonds and formation of pristine CGNRs at elevated annealing temperatures.First-principles calculations show that the CGNRs exhibit negative differential resistance. | Yun Cao Jing Qi Yan-Fang Zhang Li Huang Qi Zheng Xiao Lin Zhihai Cheng Yu-Yang Zhang Xinliang Feng Shixuan Du Sokrates T.Pantelides Hong-Jun Gao | 2018 | Nano Research2018，11，12： | 1 |
| 8 | Direct Imaging of Molecular Orbitals of Metal Phthalocyanines on Metal Surfaces with an O2-Functionalized Tip of a Scanning Tunneling Microscope显示文摘Au (111 ) 上的铁酞毒和锌酞毒分子的高分辨率的扫描通道显微镜图象用一台扫描通道显微镜(STM ) 的一个 functionalized 尖端被获得了,并且显示出没用干净尖端被观察的富有的 intramolecular 特征。Ab initio 密度功能的理论计算和扩大 H? | Zhihai Cheng Shixuan Du Wei Guo Li Gao Zhitao Deng Nan Jiang Haiming Guo Hao Tang H. J. Gao | 2011 | Nano Research2011，4，6： | 1 |
| 9 | Semiconducting M_(2)X(M=Cu,Ag,Au;X=S,Se,Te)monolayers:A broad range of band gaps and high carrier mobilities显示文摘Two-dimensional semiconductors(2DSCs)with appropriate band gaps and high mobilities are highly desired for future-generation electronic and optoelectronic applications.Here,using first-principles calculations,we report a novel class of 2DSCs,group-11-chalcogenide monolayers(M_(2)X,M=Cu,Ag,Au;X=S,Se,Te),featuring with a broad range of energy band gaps and high carrier mobilities.Their energy band gaps extend from 0.49 to 3.76 eV at a hybrid density functional level,covering from ultraviolet-A,visible light to near-infrared region,which are crucial for broadband photoresponse.Significantly,the calculated room-temperature carrier mobilities of the M_(2)X monolayers are as high as thousands of cm^(2)·V^(-1)·s^(-1).Particularly,the carrier mobilities ofε-Au_(2)Se and e-Au2Te are up to 104 cm^(2)·V^(-1)·s^(-1),which is very attracitive for electronic devices.Benefitting from the broad range of energy band gaps and superior carrier mobilities,the group-11-chalcogenide M_(2)X monolayers are promising candidates for future-generation nanoelectronics and optoelectronics. | Lei Gao Yan-Fang Zhang Shixuan Du | 2021 | Nano Research2021，14，8： | 1 |
| 10 | Recovery of edge states of graphene nanoislands on an iridium substrate by silicon intercalation显示文摘有限尺寸的 graphene 表例如 graphene nanoislands (GNI ) ,在基于 graphene 的 nanoelectronics 为实际应用正在答应候选人。有明确的之字形边的 GNI 被预言有之字形边 graphene nanoribbons 的类似于那些的极化纺纱的边状态,它能完成 graphene spintronics。然而,因为和使用的 substrate.We 的相互作用,金属底层上的 GNI 没有边状态,这被报导了扫描通道显微镜学的联合,光谱学,并且密度证明边在红外底层上 GNI 说的功能的理论计算能被设置恢复在 GNI 和底层之间的 Si 原子的层。我们也发现边状态逐渐地与增加岛尺寸变到费密水平。这个工作提供一个方法在金属底层上在高质量的 graphene nanostructures 调查极化纺纱的边状态。 | Hui Chen Yande Que Lei Tao Yu-Yang Zhang Xiao Lin Wende Xiao Dongfei Wang Shixuan Du Sokrates T. Pantelides Hong-Jun Gao | 2018 | Nano Research2018，11，7： | 1 |
| 11 | Superconductivity and topological aspects of two-dimensional transition-metal monohalides显示文摘Two-dimensional(2D)superconducting states have attracted much recent interest,especially when they coexist with nontrivial band topology which affords a promising approach towards Majorana fermions.Using first-principles calculations,we predict van der Waals monolayered transition-metal monohalides MX(M=Zr,Mo;X=F,Cl)as a class of 2D superconductors with remarkable transition temperature(5.9–12.4 K).Anisotropic Migdal-Eliashberg theory reveals that ZrCl have a single superconducting gap∆~2.14 meV,while MoCl is a two-gap superconductor with∆~1.96 and 1.37 meV.The Z_(2)band topology of 2D MX is further demonstrated that MoF and MoCl are candidates for realizing topological superconductivity.Moreover,the Dirac phonons of ZrCl and MoCl contribute w-shape phononic edge states,which are potential for an edge-enhanced electron-phonon coupling.These findings demonstrate that 2D MX offers an attractive platform for exploring the interplay between superconductivity,nontrivial electronic and phononic topology. | Wen-Han Dong Yu-Yang Zhang Yan-Fang Zhang Jia-Tao Sun Feng Liu Shixuan Du | 2022 | npj Computational Materials2022，，1： | 1 |
| 12 | Bandgap broadening at grain boundaries in single-layer MoS2显示文摘Two-dimensional semiconducting transition-metal dichalcogenides have attractedconsiderable interest owing to their unique physical properties and futuredevice applications. In particular, grain boundaries (GBs) have been oftenobserved in single-layer MoS2 grown via chemical vapor deposition, which cansignificantly influence the material properties. In this study, we examined theelectronic structures of various GBs in single-layer MoS2 grown on highlyoriented pyrolytic graphite using low-temperature scanning tunneling microscopy/spectroscopy. By measuring the local density of states of a series of GBs with tiltangles ranging from 0° to 25°, we found that the bandgaps at the GBs can beeither broadened or narrowed with respect to the intrinsic single-layer MoS2.The bandgap broadening shows that the GBs can become more insulating,which may directly influence the transport properties of nanodevices based onpolycrystalline single-layer MoS2 and be useful for optoelectronics. | Dongfei Wang Hua Yu Lei Tao Wende Xiao Peng Fan Tingting Zhang Mengzhou Liao Wei Guo Dongxia Shi Shixuan Du Guangyu Zhang Hongjun Gao | 2018 | Nano Research2018，11，11： | 1 |
| 13 | Sulfur-doped graphene nanoribbons with a sequence of distinct band gaps显示文摘不同于 graphene 表, graphene nanoribbons (GNR ) 能展出能被控制杂质做和 GNR 宽度和边结构调节的半导体的乐队差距特征。然而,完成如此的控制是在 GNR 的制造的主要挑战。V 形臂章类型 GNR 最近经由太古或代替 N 的 oligophenylene 单体的帮助表面的聚合被综合。原则上, GNR 异质接面能被混合二不同单体制作。在这份报纸,我们用代替硫的 oligophenylene 单体报导 V 形臂章类型 GNR 的制造和描述第一次生产 GNR 和相关 heterostructures。第一原则的计算证明 GNR 差距能被经由 debromination 和 intramolecular cyclodehydrogenation 从 cyclodehydrogenated 异构体使用不同的硫配置定制。这个特征应该由设计他们的硫配置为多重 GNR 异质接面的创造启用一条新途径。这些预言经由扫描通道显微镜学并且扫描通道光谱学被证实了。例如,我们发现了包含 S GNR 与不同乐队差距包含片断,即,导致量的一个序列的多重异质接面的一个序列点。这个不平常的 intraribbon 异质接面序列可能在使用量点的 nanoscale optoelectronic 应用是有用的。 | Yan-Fang Zhang Yi Zhang Geng Li Jianchen Lu Yande Que Hui Chen Reinhard Berger Xinliang Feng Klaus Müllen Xiao Lin Yu-Yang Zhang Shixuan Du Sokrates T. Pantelides Hong-Jun Gao | 2017 | Nano Research2017，10，10： | 1 |
| 14 | The As-surface of an iron-based superconductor CaKFe_(4)As_(4)显示文摘As a new type of iron-based superconductor, CaKFe_(4)As_(4) has recently been demonstrated to be a promising platform for observing Majorana zero modes (MZMs). The surface of CaKFe_(4)As_(4) plays an important role in realizing the MZM since it hosts superconducting topological surface states. However, due to the complicated crystal structure, the terminal surface of CaKFe_(4)As_(4) has not been determined yet. Here, by using scanning tunneling microscopy/spectroscopy (STM/S), we find that there are two types of surface structure in CaKFe_(4)As_(4). Bias-dependent atomic resolution images show an evolvement from 2–√×2–√ superstructure with respect to the As lattice into 1 × 1 when the tip is brought close to the surface, revealing the sublattice of missing As atoms. Together with the first-principles calculations, we show that the surface As layer has a buckled structure. Our findings provide insight to future surface study of CaKFe_(4)As_(4) as well as other iron-pnictide superconductors. | Lu Cao Yang Song Ya-Bin Liu Qi Zheng Guangyuan Han Wenyao Liu Meng Li Hui Chen Yuqing Xing Guang-Han Cao Hong Ding Xiao Lin Shixuan Du Yu-Yang Zhang Geng Li Ziqiang Wang Hong-Jun Gao | 2021 | Nano Research2021，14，11： | 1 |
| 15 | On-surface synthesis and edge states of NBN-doped zigzag graphene nanoribbons显示文摘Zigzag graphene nanoribbons(ZGNRs)with spin-polarized edge states have potential applications in carbon-based spintronics.The electronic structure of ZGNRs can be effectively tuned by different widths or dopants,which requires delicately designed monomers.Here,we report the successful synthesis of ZGNR with a width of eight carbon zigzag lines and nitrogen-boronnitrogen(NBN)motifs decorated along the zigzag edges(NBN-8-ZGNR)on Au(111)surface,which starts from a specially designed U-shaped monomer with preinstalled NBN units at the zigzag edge.Chemical-bond-resolved non-contact atomic force microscopy(nc-AFM)imaging confirms the zigzag-terminated edges and the existence of NBN dopants.The electronic states distributed along the zigzag edges have been revealed after a silicon-layer intercalation at the interface of NBN-8-ZGNR and Au(111).Our work enriches the ZGNR family with a new dopant and larger width,which provides more candidates for future carbonbased nanoelectronic and spintronic applications. | Xiao Chang Li Huang Yixuan Gao Yubin Fu Ji Ma Huan Yang Junzhi Liu Xiaoshuai Fu Xiao Lin Xinliang Feng Shixuan Du Hong-Jun Gao | 2023 | Nano Research2023，16，7： | 0 |
| 16 | Auxetic two-dimensional transition metal selenides and halides显示文摘Auxetic two-dimensional(2D)materials provide a promising platform for biomedicine,sensors,and many other applications at the nanoscale.In this work,utilizing a hypothesis-based data-driven approache,we identify multiple materials with remarkable in-plane auxetic behavior in a family of buckled monolayer 2D materials.These materials are transition metal selenides and transition metal halides with the stoichiometry MX(M=V,Cr,Mn,Fe,Co,Cu,Zn,Ag,and X=Se,Cl,Br,I).First-principles calculations reveal that the desirable auxetic behavior of these 2D compounds originates from the interplay between the buckled 2D structure and the weak metal-metal interaction determined by their electronic structures.We observe that the Poisson’s ratio is sensitive to magnetic order and the amount of uniaxial stress applied.A transition from positive Poisson’s ratio(PPR)to negative Poisson’s ratio(NPR)for a subgroup of MX compounds under large uniaxial stress is predicted.The work provides a guideline for the future design of 2D auxetic materials at the nanoscale. | Jinbo Pan Yan-Fang Zhang Jingda Zhang Huta Banjade Jie Yu Liping Yu Shixuan Du Adrienn Ruzsinszky Zhenpeng Hu Qimin Yan | 2020 | npj Computational Materials2020，，1： | 0 |
| 17 | Quantum anomalous Hall effect in two-dimensional magnetic insulator heterojunctions显示文摘Recent years have witnessed tremendous success in the discovery of topological states of matter.Particularly,sophisticated theoretical methods in time-reversal-invariant topological phases have been developed,leading to the comprehensive search of crystal database and the prediction of thousands of topological materials.In contrast,the discovery of magnetic topological phases that break time reversal is still limited to several exemplary materials because the coexistence of magnetism and topological electronic band structure is rare in a single compound.To overcome this challenge,we propose an alternative approach to realize the quantum anomalous Hall(QAH)effect,a typical example of magnetic topological phase,via engineering two-dimensional(2D)magnetic van der Waals heterojunctions. | Jinbo Pan Jiabin Yu Yan-Fang Zhang Shixuan Du Anderson Janotti Chao-Xing Liu Qimin Yan | 2020 | npj Computational Materials2020，，1： | 0 |
| 18 | Quantum nutcracker for near-room-temperature H_2 dissociation显示文摘Solid surfaces are well known to mediate the dissociation of molecules via electronic interactions (heterogeneous catalysis).In particular,H2 dissociation on metal surfaces has been widely studied for several decades because it is an important step in hydrogenation reactions.The efficiency of the process depends on both the electronic properties of the metal surface and the surface microstructures [1].Enhanced efficiency and reduced cost are usually achieved by using nanoparticles,which have increased the surface-to-volume ratio and low-coordination atoms [2].Another approach is to optimize the local electronic states of the metal surface by doping [3],alloying with other elements [4],or by taking advantage of strong interactions between metal nanoparticles and the supporting substrate [5].These methods often work together to tailor the adsorption properties on surfaces and show major efficiency enhancement. | Lei Tao Wei Guo Yu-Yang Zhang Yan-Fang Zhang Jiatao Sun Shixuan Du Sokrates T.Pantelides | 2019 | Science Bulletin2019，64，1： | 0 |
| 19 | Two-dimensional MX Dirac materials and quantum spin Hall insulators with tunable electronic and topological properties显示文摘We propose a novel class of two-dimensional(2D)Dirac materials in the MX family(M=Be,Mg,Zn and Cd,X=Cl,Br and I),which exhibit graphene-like band structures with linearly-dispersing Dirac-cone states over large energy scales(0.8–1.8 eV)and ultra-high Fermi velocities comparable to graphene.Spin-orbit coupling opens sizable topological band gaps so that these compounds can be effectively classified as quantum spin Hall insulators.The electronic and topological properties are found to be highly tunable and amenable to modulation via anion-layer substitution and vertical electric field.Electronic structures of several members of the family are shown to host a Van-Hove singularity(VHS)close to the energy of the Dirac node.The enhanced density-of-states associated with these VHSs could provide a mechanism for inducing topological superconductivity.The presence of sizable band gaps,ultra-high carrier mobilities,and small effective masses makes the MX family promising for electronics and spintronics applications. | Yan-Fang Zhang Jinbo Pan Huta Banjade Jie Yu Hsin Lin Arun Bansil Shixuan Du Qimin Yan | 2021 | Nano Research2021，14，3： | 0 |
| 20 | Intrinsically patterned corrals in monolayer Ag_(5)Se_(2) and selective molecular co-adsorption显示文摘Functionalized two-dimensional(2D)materials play an important role in both fundamental sciences and practical applications.The construction and precise control of patterns at the atomic-scale are necessary for selective and multiple functionalization.Here we report the fabrication of monolayer pentasilver diselenide(Ag_(5)Se_(2)),a new type of intrinsically patterned 2D material,by direct selenization of a Ag(111)surface.The atomic arrangement is determined by a combination of scanning tunneling microscopy(STM),low-energy electron diffraction(LEED),and density-functional-theory(DFT)calculations.Large-scale STM images exhibit a quasi-periodic pattern of stoichiometric triangular domains with a side length of~15 nm and apical offsets.The boundaries between triangular domains are sub-stoichiometric.Deposition of different molecules on the patterned Ag_(5)Se_(2) exhibits selective adsorption behavior.Pentacene molecules preferentially adsorb on the boundaries,while tetracyanoquinodimethane(TCNQ)molecules adsorb both on the boundaries and the triangular domains.By co-depositing pentacene and TCNQ molecules,we successfully construct molecular corrals with pentacene on the boundaries encircling TCNQ molecules on the triangular domains.The realization of epitaxial large-scale and high-quality,monolayer Ag_(5)Se_(2) extends the family of intrinsically patterned 2D materials and provides a paradigm for dual functionalization of 2D materials. | Jianchen Lu Shiru Song Shuai Zhang Yang Song Yun Cao Zhenyu Wang Li Huang Hongliang Lu Yu-Yang Zhang Sokrates T.Pantelides Shixuan Du Xiao Lin Hong-Jun Gao | 2022 | Nano Research2022，15，7： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员