TITLE

The interlayer screening effect of graphene sheets investigated by Kelvin probe force microscopy

AUTHOR(S)
Lee, N. J.; Yoo, J. W.; Choi, Y. J.; Kang, C. J.; Jeon, D. Y.; Kim, D. C.; Seo, S.; Chung, H. J.
PUB. DATE
November 2009
SOURCE
Applied Physics Letters;11/30/2009, Vol. 95 Issue 22, p222107
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We report on the interlayer screening effect of graphene using Kelvin probe force microscopy (KPFM). By using a gate device configuration that enables the supply of electronic carriers in graphene sheets, the vertical screening properties were studied from measuring the surface potential gradient. The results show layer-dependence of graphene sheets, as the number of graphene layers increases, the surface potential decreases exponentially. In addition, we calculate the work function-related information of the graphene layers using KPFM.
ACCESSION #
45610543

 

Related Articles

  • Theory of oxides surfaces, interfaces and supported nano-clusters. Cinquini, Fabrizio; Valentin, Cristiana; Finazzi, Emanuele; Giordano, Livia; Pacchioni, Gianfranco // Theoretical Chemistry Accounts: Theory, Computation, & Modeling;Jun2007, Vol. 117 Issue 5/6, p827 

    Oxides surfaces and thin films are finding continuous new technological applications and represent an important class of systems in materials science. Today we assist to a considerable effort to characterize the surfaces and the interfaces of oxide materials at an atomistic level. The intense...

  • Thermodynamic forces in highly curved fluid interfaces. Lovett, Ronald; Baus, Marc // Journal of Chemical Physics;6/8/2004, Vol. 120 Issue 22, p10711 

    The identification of the force distribution in curved interfaces as a thermodynamic force [Baus and Lovett, J. Chem. Phys. 101, 377 (1995)] can be interpreted as a relation between the force distribution and the grand canonical free energy difference between two distinct systems. Using this...

  • Growth, physical properties, and adhesion of copper-polyphenylquinoxaline interfaces. Pireaux, J. J.; Grégoire, Ch.; Bellard, L.; Cros, A.; Torres, J.; Palleau, J.; Templier, F.; Nechstchein, J.; Lazare, S. // Journal of Applied Physics;7/15/1994, Vol. 76 Issue 2, p1244 

    Investigates the physicochemical surface properties of polyphenylquinoxaline (PPQ) and of copper-PPQ interfaces. Chemical formula of PPQ; Description of the experiments; Virgin PPQ surface characterization; Discussion on ultraviolet-treated PPQ surface characterization.

  • High-intensity laser-induced vaporization without internal superheating. Beckett, P. M. // Journal of Applied Physics;10/15/1985, Vol. 58 Issue 8, p2943 

    Addresses the problem of superheating in an infinite solid. Determination of the movement of the interface; Details of the quasi-steady solution; Advantages of inserting a mushy zone between the fully solid and the fully molten phases.

  • Suppression of interface reaction and modification of band offset by Sb interlayers in CdS/InP (110) heterojunctions. Maierhofer, Ch.; Zahn, D. R. T.; Evans, D. A.; Horn, K. // Journal of Applied Physics;4/15/1993, Vol. 73 Issue 8, p4089 

    Presents information on a study that found that the deposition of monatomic interlayers at the interface between CdS and InP efficiently suppresses the interface reaction characteristics for the system and has marked influence on the valence-band offset. Research method; Results and discussion...

  • Study of interface states and oxide quality to avoid contrast reversal in scanning capacitance microscopy. Goghero, Didier; Raineri, Vito; Giannazzo, Filippo // Applied Physics Letters;9/2/2002, Vol. 81 Issue 10, p1824 

    We demonstrate that the contrast reversal effect in scanning capacitance microscopy (SCM) is related to the Si/SiO[sub 2] interface microroughness. The surface roughness has been associated with the concentration of states at the Si/SiO[sub 2] interface and a monotonic behavior of the SCM...

  • Detection of Weak Interface Signals for Same Material Bond/Weld Inspection. Rinker, B. A.; Jamieson, E. E.; Samayoa, J. A.; Abeln, T. G.; Lerch, T. P.; Neal, S. P. // AIP Conference Proceedings;2003, Vol. 657 Issue 1, p1080 

    In same material joining processes, remnants of the original interface may be acoustically weak and difficult to detect ultrasonically in the presence of grain noise. For the nearly perfect (but potentially inadequate) bond or weld the remaining interface may be defined only by small voids,...

  • Technique of surface-wave scattering and calibration with simple liquids. Sano, M.; Kawaguchi, M.; Chen, Y-L.; Skarlupka, R. J.; Chang, T.; Zografi, G.; Yu, H. // Review of Scientific Instruments;Jun86, Vol. 57 Issue 6, p1158 

    Heterodyne detection of light scattered from capillary waves is used to study the surface properties of the air–liquid interface. A diffraction grating is employed to select a precise ripplon wave vector k and to provide a stable local oscillator field. The optics are designed to form a...

  • Nonlinear energy-selective nanoscale modifications of materials and dynamics in metals and semiconductors. Marka, S.; Parks Cheney, C.; Wang, W.; L�pke, G.; Gilligan, J.; Yao, Y.; Tolk, N. H. // Technical Physics;Sep99, Vol. 44 Issue 9, p1069 

    Studies of nonlinear, energy-selective material interactions localized at surfaces, heterointerfaces, impurities, and defects in solids are described. Particular reference is made to a new molecular interaction effect caused by transfer of surface energy by low-energy collisions, a new...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics