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| 1 | Pyridine-induced interfacial structural transformation of tetraphenylethylene derivatives investigated by scanning tunneling microscopy显示文摘The two-dimensional self-assembly behaviors of tetraphenylethylene (TPE)molecules are significant for further applications, but reports are rare. The self-assembled structures of two C2-symmetry TPE derivatives (H4TCPE and H4ETrC)possessing propeller structures and their stimulus responses to the additionof vinylpyridine derivatives were thoroughly studied with the assistance ofscanning tunneling microscopy (STM) technique in combination with densityfunctional theory (DFT) calculations. Although their chemical structures weresimilar, the H4TCPE and H4ETTC molecules self-assembled into closely packedlamellar and quadrilateral structures, respectivel3~ at the 1-heptanoic acid/HOPGinterface. After the addition of pyridine derivatives (DPE, PEBP-C4, andPEBP-C8), H4TCPE and H4ETTC showed different responsiveness resultingin different co-assembly structures. The results indicated that the structuresof pyridine derivatives--including backbones and substituents--affected theintermolecular interactions of both H4TCPE/pyridine and H4ETTC/pyridinesystems. The modification of the self-assembly behaviors of propeller-shapedI-hTCPE and H4ETTC would contribute to the construction of more complexmultilevel nanostructures. | Xuan Peng Linxiu Cheng Xiaoyang Zhu Yanfang Geng Fengying Zhao Kandong Hu Xuan Guo Ke Deng Qingdao Zeng | 2018 | Nano Research2018，11，11： | 4 |
| 2 | Construction of tunable supramolecular networks studied by scanning tunneling microscopy显示文摘In this review we describe a family of organic-based host frameworks which can accommodate guest molecules. The aim of the study is to test the adjustability of this class of mimic structures that may lead to new interesting functions. Emphasis of our research is placed upon four aspects: 1) thermal properties, 2) surface photochemistry, 3) fullerene adsorption, and 4) guest inclusion. It is envisioned that such approach of nanoporous molecular networks might be developed into a new family of useful soft frameworks for studies toward shape-selective catalysis, molecular recognition, self-assembly, and host-guest supramolecular chemistry. | ZENG QingDao & WANG Chen* National Center for Nanoscience and Technology (NCNST), Beijing 100190, China | 2010 | Science China Chemistry2010，53，2： | 4 |
| 3 | Adlayer structure of TCNQ molecules on Cu(111): An in situ STM study显示文摘In situ electrochemical scanning tunneling microscopy (STM) was employed to examine tetracyano-quinodimethane (TCNQ) layer adsorbed on Cu(lll) electrode surface in 0.1 mol/L HC1O4 solution. The TCNQ molecules are found to form highly-ordered long range ad-layer with a (4×4) symmetry. Each TCNQ molecule is adsorbed on Cu(111) surface in flat-lying orientation. The molecules are preferentially aligned with their long axes inthe [ 121 ] direction. A structural model is proposed for the adlayer. | WAN Lijun & Kingo ItayaInstitute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China Department of Applied Chemistry, Graduate School of Engineering, Tohoku University, Sendai, Japan | 2001 | Chinese Science Bulletin2001，46，5： | 2 |
| 4 | 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 |
| 5 | Topological superconductivity in a Bi2Te3/NbSe2 heterostructure:A review显示文摘Topological superconductors carry globally protected gapless boundary excitations, which are robust under local perturbations, and thus exhibit both fundamental and applicational importance. An unconventional pairing with p-wave symmetry, such as a nontrivial topology in the superconductor’s wavefunction, is required to generate a non-zero Berry phase. Until now, the Bi2 Te3/2 H–NbSe2 heterostructure has proven to be a practical way to realize a topological superconductor in real materials. This complex system, where odd numbers of spin-momentum locked Dirac cone surface states on the topological insulator Bi2 Te3 become superconducting, induced by the proximate effect from the underlying s-wave superconductor 2 H–NbSe2, realizes an effective two-dimensional(2 D) spinless px + i py topological superconductor. In this review article, we summarize the recent experimental progress of the successful synthesis of Bi2 Te3/2 H–NbSe2 heterostructures using molecular beam epitaxy, determining the thickness limit of the heterostructure, detecting the long thought Majorana quasiparticle inside a magnetic vortex core state by means of scanning tunneling microscopy and demonstration of the unique spatial and spin properties of a Majorana zero mode. | 郑浩 贾金锋 | 2019 | Chinese Physics B2019，28，6： | 1 |
| 6 | SCANNING TUNNELING MICROSCOPY OF (CrFe)7C3显示文摘SCANNINGTUNNELINGMICROSCOPYOF(CrFe)7C3￥WANGJiajun;YANGZhigang,LIChunming;FANGHongsheng(TsinghuaUniversity,Beijing,ChinaManus... | | 1995 | Acta Metallurgica Sinica(English Letters)1995，8，1： | 1 |
| 7 | Scanning tunneling microscopic investigation on morphology of magnetic Weyl semimetal YbMnBi2显示文摘YbMnBi2 is a recently discovered time-reversal-symmetry breaking type-Ⅱ Weyl semimetal.However, as a representation of the new category of topological matters, the scanning tunneling microcopy(STM) results on such important material are still absent.Here, we report the STM investigations on the morphology of vacuum cleaved single crystalline YbMnBi2 samples.A hill and valley type of topography is observed on the YbMnBi2 surface, which is consistent with the non-layer nature of its crystal structure.Analysis of STM images yields the information of the index of the vicinal surface.Our results here lay a playground of future atomic scale research on YbMnBi2. | 朱朕 严冬 聂晓昂 徐豪科 杨旭 管丹丹 王世勇 李耀义 刘灿华 刘军伟 罗惠霞 郑浩 贾金锋 | 2019 | Chinese Physics B2019，28，7： | 1 |
| 8 | Electronic structure and spatial inhomogeneity of iron-based superconductor FeS显示文摘Iron-based superconductor family FeX(X=S,Se,Te)has been one of the research foci in physics and material science due to their record-breaking superconducting temperature(FeSe film)and rich physical phenomena.Recently,FeS,the least studied Fe X compound(due to the difficulty in synthesizing high quality macroscopic crystals)attracted much attention because of its puzzling superconducting pairing symmetry.In this work,combining scanning tunneling microscopy and angle resolved photoemission spectroscopy(ARPES)with sub-micron spatial resolution,we investigate the intrinsic electronic structures of superconducting FeS from individual single crystalline domains.Unlike FeTe or FeSe,FeS remains identical tetragonal structure from room temperature down to 5 K,and the band structures observed can be well reproduced by our ab-initio calculations.Remarkably,mixed with the 1×1 tetragonal metallic phase,we also observe the coexistence of √5×√5 reconstructed insulating phase in the crystal,which not only helps explain the unusual properties of FeS,but also demonstrates the importance of using spatially resolved experimental tools in the study of this compound. | 王成玮 王美晓 姜娟 杨海峰 杨乐仙 史武军 赖晓芳 Sung-Kwan Mo Alexei Barinov 颜丙海 刘志 黄富强 贾金峰 柳仲楷 陈宇林 | 2020 | Chinese Physics B2020，29，4： | 1 |
| 9 | Raman investigation of air-stable silicene nanosheetson an inert graphite surface显示文摘The fascinating properties of two-dimensional (2D) crystals have gainedincreasing interest for many applications. The synthesis of a 2D silicon structure,namely silicene, is attracting great interest for possible development of nextgeneration electronic devices. The main difficulty in working with siliceneremains its strong tendency to oxidation when exposed to air as a consequenceof its relatively highly buckled structure. In this work, we univocaUy identifythe Raman mode of air-stable low-buckled silicene nanosheets synthesized onhighly oriented pyrolytic graphite (HOPG) located at 542.5 cm-1. The main focusof this work is Raman spectroscopy and mapping analyses in combination withab initio calculations. Scanning tunneling microscopy images reveal the presenceof a patchwork of Si three-dimensional (3D) clusters and contiguous Si areaspresenting a honeycomb atomic arrangement, rotated by 30° with respect to theHOPG substrate underneath, with a lattice parameter of 0.41±0.02 nm and abuckling of the Si atoms of 0.05 nm. Raman analysis supports the co-existenceof 3D silicon clusters and 2D silicene. The Raman shift of low-buckled siliceneon an inert substrate has not been reported so far and it is completely differentfrom the one calculated for free-standing silicene and the ones measured forsilicene grown on Ag(111) surfaces. Our experimental results are perfectlyreproduced by our ab initio calculations of deposited silicene nanosheets. Thisleads us to conclude that the precise value of the observed Raman shift crucially depends on the strain between the silicene and the HOPG substrate. | Paola Castrucci Filippo Fabbri Tiziano Delise Manuela Scarselli Matteo Salvato Sara Paseale Roberto Francini Isabelle Berbezier Christoph Lechner Fatme Jardali Holger Vach Maurizio De Crescenzi | 2018 | Nano Research2018，11，11： | 1 |
| 10 | Fabrication and properties of silicene and silicene–graphene layered structures on Ir(111)显示文摘Silicene, a two-dimensional(2D) honeycomb structure similar to graphene, has been successfully fabricated on various substrates. This work will mainly review the syntheses and the corresponding prope√rties o√f silicene and√ silice√ne–graphene layered structures on Ir(111) substrates. For silicene on Ir(111), the buckled(3 ×3) silicene/(7 ×7)Ir(111) configuration and its electronic structure are fully discussed. For silicene–graphene layered structures, silicene layer can be constructed underneath graphene layer by an intercalation method. These results indicate the possibility of integrating silicene with graphene and may link up with potential applications in nanoelectronics and related areas. | 孟蕾 王业亮 张理智 杜世萱 高鸿钧 | 2015 | Chinese Physics B2015，24，8： | 1 |
| 11 | Structure and Growth of Two-dimensional Ices at the Surfaces Probed by Scanning Probe Microscopy显示文摘Scanning probe microscopy(SPM) stands out as one of the most powerful tools for characterizing the solid surface and the adsorbed molecules with ?ngstr?m resolution in real space. In particular, this unique technique provides an unprecedented opportunity for directly probing the low-dimensional ices at surfaces. In this perspective, we first review the recent advances of scanning tunneling microscopy(STM) imaging of various two-dimensional(2 D) ice structures on metal[1-7], insulator[8-12], graphite[13-15] surfaces and under strong confinement[10, 16-19]. We then introduce that noncontact atomic-force microscopy(AFM) with a CO-terminated tip enables atomic imaging of a genuine 2 D ice grown on a hydrophobic Au(111) surface with minimal perturbation[20], paying particular attention to the growth processes at the edges of 2 D ice. In the end, we present an outlook on the future applications of 2 D ice as well as the relation between the 2 D and 3 D ice growth. | TIAN Ye MA Run-Ze JIANG Ying | 2020 | Chinese Journal of Structural Chemistry2020，39，3： | 1 |
| 12 | Single and multi domain buckled germanene phases on Al(111)surface显示文摘The simultaneous formati on of single domain(3×3)and multi domai n(√7×√7)R(±19.1°)germa nene phases on Al(111)surface in thesub-monolayer range was studied using seanning tunneling microscopy(STM)and density functional theory(DFT)based simulations.Experimental results revealed that both germa nene phases nu cleate and grow in dependently from each other and regardless of Al substratetemperature within significantly expanded range Ts=27-200℃.Our results unambiguously showed that STM images with hexagonalcontrast yield correct-resolved structure for both germanene phases,while honeycomb contrast is a result of an artificial tip-induced STM resolution.First-principles calculations suggested atomic models with strongly buckled germanene(2×2)/Al(111)(3×3)and(√3×√3)R30°/Al(111)(√7×√7)R(±19.1°)with one of eight and one of six Ge atoms protruding upward respectively,that consistently describe the experimentally observed STM images both for single and multi domai n surface phases.According to the DFT based simulati ons both germa nene(2×2)and(√3×√3)R30°superstructures have a stretched lattice strain with respect to the ideal free-standing germa nene by 6.2%and 13.9%,respectively.Hence,numerous small domains separated by domain boundaries in the(√3×√3)R30°/Al(111)(√7×√7)R(±19.1°)germanenephase tend to reduce the surface energy and prevent the formation of extended single domains,in contrast to the(2×2)/Al(111)(3×3)phase.However,our experimental results showed that the nucleation and growth of germa nene on Al(111)surface yield strong modifications of Alsurface even at room temperature(RT),which may be contributed to the formation of Al-Ge alloy due to Ge surface solid-states reactivitythat was ignored in recent studies.It is already evident from our present findings that the role of Al atoms in the formation of(3×3)and(√7×√7)R(±19.1°)germa nene phases is worthy to be carefully studied in the future,which could be an important knowledge for large-quantityfabrication of germanene on aluminum. | Dmitriy A.Muzychenko Sergey I.Oreshkin Vladimir I.Panov Chris Van Haesendonck Andrey I.Oreshkin | 2019 | Nano Research2019，12，12： | 1 |
| 13 | 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 |
| 14 | Effect of alkyl substitutions on self-assembly显示文摘The self-assemblies of 4-hexadecyloxybenzoic acid and 3,4,5-trihexadecyloxybenzoic acid have been studied by using scanning tunneling microscopy (STM). The well-ordered assemblies with different arrangement have been investigated. The structural change is attributed to the different number of substituted alkyl chains on periphery. | Peng Wu Guojun Deng Sailong Xu Qinghua Fan Lijun Wan Chen Wang Chunli Bai | 2002 | Chinese Science Bulletin2002，47，18： | 1 |
| 15 | Investigations of the mechanism of liquid-crystal alignment onrubbed polyimide films显示文摘Liquid crystals (LCs) can be easily oriented by surfaces on a macroscopic scale. Thisphenomenon, known as alignment or anchoring, plays a dominant role in the fabrication ofLC devices. Studying the alignment technique of LCs is of great importance from bothpractical and theoretical points of view. Recently, rubbed polyimide-coated glass substrates have been widely used in LC align-ment. A general belief about the mechanism by which such a polymer alignment methodworks is that alignment acts through the interaction between LC molecules and orientedpolymer chains. This assumption was demonstrated by Barmentlo et al. through surfacesecond-harmonic-generation and optical phase retardation measurements. However, theseoptical techniques can only provide the macroscopic and average information because | 吴海明 朱扬明 杨晓敏 陆祖宏 韦钰 罗棋 孙政明 | 1996 | Chinese Science Bulletin1996，41，7： | 0 |
| 16 | STM investigation of the nanostructure on nanocrystalline Fe_(73.5)Cu_1Nb_3Si_(13.5)B_9 prepared by amorphous crystallization显示文摘A new nanocrystalline alloy Fe73.5Cu1Nb3Si13.5B9 was cast initially as amorphous ribbons, and subsequent annealing above the crystallization temperature of the amorphous state created a homogeneous ultrafine grain structure of α-Fe(Si) solid solution with a typical grain diameter of 10—20 nm and a residual amorphous phase at the interface with a thickness of 4—5 atoms. | 冯松林 任闽秦 刘涛 徐祖雄 马如璋 | 1995 | Chinese Science Bulletin1995，40，6： | 0 |
| 17 | Some Unusual Features of Highly Oriented Pyrolytic Graphite Observed by Electrochemical Scanning Tunneling Microscopy显示文摘Highly oriented pyrolytic graphite (HOPG) is the substrate often used in scanningtunneling Ancroscopy (STM). It is well known that STM images of the basal plane of HOPG showsome unusual structUral patterns. In this letter, we present in situ STM images of some unusualfeatures on HOPG in solutions, including normal or abnormal chain-like featUres and hexagonal oroblique superPeriodic structures. These features emerge both next to and apart from the step ofHOPG. | Bai Lin ZHANG Yu Fan HE Er Kang WANG (Laboratory of Electroanalytical Chemistry, National Analytical Research Center ofElectrochemistry and Spectroscopy, Changchun Institute of Applied Chemistry,Chinese Academy of Sciences, Changchun 130022) | 1998 | Chinese Chemical Letters1998，9，5： | 0 |
| 18 | Structure of Cyanine Dye Aggregates Observed by Scanning Tunneling Microscopy显示文摘In solution and on a variety of substrates, the ability of spectral sensitizing dyes to form molecular aggregates with close intermolecular spacings and strong coupling is a well-known phenomenon. A given dye may form several different types of aggregates, which exhibits spectral shifts of±100 nm from the monomer spectrum in the solution. Aggregate of dye ab- | 江河 任新民 白春礼 | 1993 | Chinese Science Bulletin1993，38，1： | 0 |
| 19 | Investigation of charge carrier depletion in freestanding nanowires by a multi-probe scanning tunneling microscope显示文摘Profiling of the electrical properties of nanowires (NWs) and NW heterocontactswith high spatial resolution is a challenge for any application and advancedNW device development. For appropriate NW analysis, we have established afour-point prober, which is combined in vacuo with a state-of-the-art vapor-liquid-solid preparation, enabling contamination-free NW characterization withhigh spatial resolution. With this ultrahigh-vacuum-based multi-tip scanningtunneling microscopy (MT-STM), we obtained the resistance and dopingprofiles of freestanding NWs, along with surface-sensitive information. Ourin-system 4-probe STM approach decreased the detection limit for low dopantconcentrations to the depleted case in upright standing NWs, while increasingthe spatial resolution and considering radial depletion regions, which mayoriginate from surface changes. Accordingly, the surface potential of oxide-freeGaAs NW {112} facets has been estimated to be lower than 20 mV, indicating aNW surface with very low surface state density. | Andreas Nagelein Matthias Steidl Stefan Korte Bert Voigtlande Wemer Prost Peter Kleinschmidt Thomas Hannappel | 2018 | Nano Research2018，11，11： | 0 |
| 20 | Electrochemical Scanning Tunneling Microscopy──An Ex-situ Study of the Growth of Polypyrrole Films on Electrodes显示文摘ElectrochemicalScanningTunnelingMicroscopy──AnEx-situStudyoftheGrowthofPolypyrroleFilmsonElectrodesLIJingandWANGEr-kang(Labor... | LI Jing and WANG Er-kang (Laboratory of Electroanalytical Chemistiy, Changchun Institute of Applied Chemistr, Chinese Acadeniy of Sciences, Changchun, 130022 ) | 1994 | Chemical Research in Chinese Universities1994，10，2： | 0 |
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