扫描隧道显微镜在化学和物理中的应用
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摘要
扫描隧道显微镜(STM)的日臻完善与发展,为研究分子级化学和物理性质提供了新的机遇。STM具有高空间分辨的形貌表征能力,可以探测单原子、分子水平上的电子性质和微观过程,如扩散、解吸附、断键等。此外,通过与其他技术结合,可以扩展STM的功能,增强化学分析能力。STM具有原子和纳米尺度的分析和加工能力,可用于不断发展的纳米技术等诸多研究领域。
Recent advances in low-temperature scanning tunneling microscopy(STM) have provided new opportunities for investigating molecular-level chemical and physical properties. STM has been used to study the atomic-resolved geometries of surfaces and nanostructure, and their electronic and magnetic properties at a single-molecule level, in addition to the microscopic processes, such as diffusion, desorption, configuration switching, bond-breaking.Moreover, by extending the functions of STM by combining with certain other techniques, STM is an interesting approach for considerable future applications in the growing nanotechnology.
Recent advances in low-temperature scanning tunneling microscopy(STM) have provided new opportunities for investigating molecular-level chemical and physical properties. STM has been used to study the atomic-resolved geometries of surfaces and nanostructure, and their electronic and magnetic properties at a single-molecule level, in addition to the microscopic processes, such as diffusion, desorption, configuration switching, bond-breaking.Moreover, by extending the functions of STM by combining with certain other techniques, STM is an interesting approach for considerable future applications in the growing nanotechnology.
引文
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[3]Cocker T L,Peller D,Yu P,et al.Tracking the ultrafast motion of a single molecule by femtosecond orbital imaging[J].Nature,2016(7628):263.
[4]Morgenstern M,Freitag N,Vaid A,et al.Graphene quantum dots:wave function mapping by scanning tunneling spectroscopy and transport spectroscopy of quantum dots prepared by local anodic oxidation[J].physica status solidi(RRL)-Rapid Research Letters,2016(1):24-38.
[5]Migani A,Blancafort L.Excitonic Interfacial ProtonCoupled Electron Transfer Mechanism in the Photocatalytic Oxidation of Methanol to Formaldehyde on TiO2(110)[J].Journal of the American Chemical Society,2016(49):16165-13173.
[6]Wang Y,Sun H,Tan S,et al.Role of point defects on the reactivity of reconstructed anatase titanium dioxide(001)surface.[J].Nature Communications,2013(7):2214.
[7]Minato T,Sainoo Y,Kim Y,et al.The electronic structure of oxygen atom vacancy and hydroxyl impurity defects on titanium dioxide(110)surface[J].Journal of Chemical Physics,2009(12):1755.
[8]Vittadini A,Casarin M,Selloni A.Chemistry of and on TiO2-anatase surfaces by DFT calculations:a partial review[J].Theoretical Chemistry Accounts,2007(5-6):663-671.
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[10]Qiu X H,Nazin G V,Ho W.Vibrationally resolved fluorescence excited with submolecular precision.[J].Science,2003(5606):542-6.
[11]Synge E.H.XXXVIII.\r A suggested method for extending microscopic resolution into the ultra-microscopic region[J].The London,Edinburgh,and Dublin Philosophical Magazine and Journal of Science,1928(35):356-362.
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[13]Steidtner J,Pettinger B.Tip-enhanced Raman spectroscopy and microscopy on single dye molecules with 15nm resolution.[J].Physical Review Letters,2008(23):236101.
[14]ZHANG,Tong,CHENG,et al.Superconductivity in One-atomic-layer Metal Films[J].Bulletin of the Chinese Academy of Sciences,2011(4):301-303.
[15]Li G,Luican A,Andrei E Y.Scanning tunneling spectroscopy of graphene on graphite[J].Physical Review Letters,2009(17):999-1000.
[16]Du H,Sun X,Liu X,et al.Surface Landau levels and spin states in bismuth(111)ultrathin films[J].Nature Communications,2016(7):10814.