Direct Write, Read, and Erase of a Vertical Heterostructure of Graphene-Monolayer Electrolyte-h-BN Using Electric Force Microscopy. [PDF]
SmallThis work demonstrates bistable graphene doping of about 5 × 1012 cm−2$\rm{c{m}^{-2}}$ using a molecularly thin electrolyte confined between two, 2D crystals. The electrolyte's bistability enables multiple non‐volatile states with a conductive AFM tip writing, erasing, and sensing these states.
Wang H +3 more
europepmc +2 more sources
Chemical Information From the Ehrenfest Force Field Based on Reduced Density Matrix Functional Theory. [PDF]
J Comput ChemReduced Density Matrix Functional Theory is evaluated as a practical route to approximate the exchange‐correlation contribution to the Ehrenfest force field. Across molecules from diatomics to polyatomics, it reproduces key bonding features and force‐field topologies while exposing limits in strongly correlated cases, enabling EhF analysis in larger ...
Mortera-Carbonell AJ +3 more
europepmc +2 more sources
Dielectric properties of thin insulating layers measured by Electrostatic Force Microscopy [PDF]
, 2010 In order to measure the dielectric permittivity of thin insulting layers, we developed a method based on electrostatic force microscopy (EFM) experiments coupled with numerical simulations.
Alegría, Angel +8 more
core +2 more sources
Nanodielectric mapping of a model polystyrene-poly(vinyl acetate) blend by electrostatic force microscopy [PDF]
, 2010 We present a simple method to quantitatively image the dielectric permittivity of soft materials at nanoscale using electrostatic force microscopy (EFM) by means of the double pass method. The EFM experiments are based on the measurement of the frequency
Alegría, Angel +6 more
core +4 more sources
Standardization of surface potential measurements of graphene domains [PDF]
, 2013 We compare the three most commonly used scanning probe techniques to obtain a reliable value of the work function in graphene domains of different thickness.
Kazakova, Olga +4 more
core +2 more sources
AIP Advances, 2020 We use a new method based on Electrostatic Force Microscopy (EFM) to perform quantitative measurements of the dielectric constants of individual carboxylated as well as non-functionalized polystyrene nanospheres. The EFM data record the oscillation phase
Marc Descoteaux +2 more
doaj +1 more source
Electric force microscopy of induced charges and surface potentials in GaN modified by light and strain [PDF]
, 1999 We have studied molecular beam epitaxy grown GaN films using electric force microscopy to detect sub-1 µm regions of electric field gradient and surface potential variations associated with GaN extended defects.
Bandić, Z. Z. +3 more
core +1 more source
Electrostatic tip-dielectric sample interaction in electrostatic force microscopy
Revista Facultad de Ingeniería Universidad de Antioquia, 2013 Electric force microscopy is a local technique for measuring electrical properties of materials. The electrostatic force gradient measurements on dielectric samples are sensitive not only to the initial charge distribution in the sample but also to the ...
Ariel Gómez +2 more
doaj +1 more source
Impact of Structural Heterogeneities in Hierarchically Grown Microribbons on 2D WS<sub>2</sub> Monolayer on the Measured Local Hydrogen Evolution Activity on Au Substrate. [PDF]
SmallSpatially resolved SECCM measurements reveal that hierarchically grown microribbons on 2D WS2 drastically suppress local HER activity. Relative to the basal plane of the 2D monolayer directly supported on an Au substrate, single‐layer and multilayer microribbons exhibit more than a ∼5‐fold and >10‐fold decrease in current density, respectively.
Adofo LA +7 more
europepmc +2 more sources
Electric charge enhancements in carbon nanotubes: Theory and experiments [PDF]
, 2008 We present a detailed study of the static enhancement effects of electric charges in micron-length single-walled carbon nanotubes, using theoretically an atomic charge-dipole model and experimentally electrostatic force microscopy.
J. D. Jackson +4 more
core +2 more sources