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Title: Measurement of the Low-Energy Electron Inelastic Mean Free Path in Monolayer Graphene

Journal Article · · Physical Review Applied

Measuring the electron-transport properties of substrate-supported nanomaterials with the traditional two-point comparison method is difficult at electron energies below 50 eV, where core-level signals are too feeble to be detected against the strong secondary-electron background. Herein, a data-driven spectral analysis technique is used to study the low-energy electron-transport properties of substrate-supported target nanomaterials, while eliminating the influence of the substrate signal. Applying this technique, the electron-transport properties of the effective attenuation length and the inelastic mean free path (IMFP) can be determined with extremely high efficiency over the entire measured energy range of 6–600 eV. Further, these results show excellent agreement with other experimental and theoretical results. In this work, significant differences are observed between monolayer graphene and the bulk graphite IMFP, which illustrates the importance of the nanometer effect in the electron-transport properties of the material. Furthermore, this technique is readily applicable to any ultrathin material that can be transferred onto a polycrystalline gold substrate.

Research Organization:
Univ. of Arkansas, Fayetteville, AR (United States)
Sponsoring Organization:
Japan Science and Technology Agency (JST); Ministry of Education, Culture, Sports, Science and Technology (MEXT); USDOE Office of Science (SC), Basic Energy Sciences (BES); National Natural Science Foundation of China (NSFC); Ministry of Education of China
Grant/Contract Number:
SC0019467; 18K18868; 11574289
OSTI ID:
1803850
Alternate ID(s):
OSTI ID: 1615556
Journal Information:
Physical Review Applied, Vol. 13, Issue 4; ISSN 2331-7019
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 8 works
Citation information provided by
Web of Science

References (55)

The electron attenuation length revisited journal June 2002
X-Ray Photoelectron Spectroscopic Study of Iron, Cobalt, Nickel, Copper, and Platinum journal September 1968
Auger electron spectroscopy of wear surfaces journal April 1977
Auger Electron Spectroscopy of Graphite Fibre Surfaces journal April 1971
A reverse Monte Carlo method for deriving optical constants of solids from reflection electron energy-loss spectroscopy spectra journal June 2013
Zur Theorie des Durchgangs schneller Korpuskularstrahlen durch Materie journal January 1930
elsepa—Dirac partial-wave calculation of elastic scattering of electrons and positrons by atoms, positive ions and molecules journal January 2005
van der Waals density functional made accurate journal March 2014
Virtual substrate method for nanomaterials characterization journal May 2017
Direct growth of large-area graphene and boron nitride heterostructures by a co-segregation method journal March 2015
Inelastic mean free path from reflectivity of slow electrons journal February 2013
QUANTUM ESPRESSO: a modular and open-source software project for quantum simulations of materials journal September 2009
Photoelectron determination of the attenuation of low-energy electrons in Al 2 O 3 journal April 1974
Elastic backscattering of electrons: determination of physical parameters of electron transport processes by elastic peak electron spectroscopy journal September 2002
Formation Mechanism of Secondary Electron Contrast of Graphene Layers on a Metal Substrate journal November 2017
Energy transfer versus charge separation in hybrid systems of semiconductor quantum dots and Ru-dyes as potential co-sensitizers of TiO 2 -based solar cells journal July 2011
Very low energy electron microscopy of graphene flakes: VERY LOW ENERGY ELECTRON MICROSCOPY OF GRAPHENE FLAKES journal May 2013
Transparency of graphene for low-energy electrons measured in a vacuum-triode setup journal July 2015
Extended Mermin Method for Calculating the Electron Inelastic Mean Free Path journal August 2014
Electron effective attenuation length in epitaxial graphene on SiC journal November 2018
Measurements of Electron Inelastic Mean Free Paths in Materials journal May 2010
Secondary-electron emission from multi-layer graphene: time-dependent first-principles study journal September 2018
Verification of the Metal-Rich Surface Model for the Oxidation of Sr, by Auger-Electron Spectroscopy journal February 1974
Pseudopotentials periodic table: From H to Pu journal December 2014
Redetermination of the Dielectric Function of Graphite journal October 1975
Observation of Plasmon Energy Gain for Emitted Secondary Electron in Vacuo journal September 2019
Differential cross sections for plasmon excitations and reflected electron-energy-loss spectra journal June 1994
Elastic scattering effects in the electron mean free path in a graphite overlayer studied by photoelectron spectroscopy and LEED journal January 2005
Self-Consistent Equations Including Exchange and Correlation Effects journal November 1965
Structural and electronic properties of graphene nanoflakes on Au(111) and Ag(111) journal March 2016
Scattering resonances in two-dimensional crystals with application to graphene journal January 2013
Editorial journal February 1979
Time-dependent density-functional theory simulation of electron wave-packet scattering with nanoflakes journal July 2014
The Graphene–Gold Interface and Its Implications for Nanoelectronics journal September 2011
Special points for Brillouin-zone integrations journal June 1976
Experimental determination of electron inelastic mean free paths in 13 elemental solids in the 50 to 5000 eV energy range by elastic-peak electron spectroscopy journal January 2005
Graphene on Pt(111): Growth and substrate interaction journal December 2009
Density-Functional Theory for Time-Dependent Systems journal March 1984
Improved quasiballistic electron emission from a nanocrystalline Si cold cathode with a monolayer-graphene surface electrode journal March 2018
Inhomogeneous Electron Gas journal November 1964
Thickness Determination of Graphene Layers Formed on SiC Using Low-Energy Electron Microscopy journal January 2008
Growth of a two-dimensional dielectric monolayer on quasi-freestanding graphene journal December 2012
Intercomparison of surface analysis of thin aluminium oxide films journal November 1990
Ultralow Secondary Electron Emission of Graphene journal January 2011
Inelastic background correction and quantitative surface analysis journal January 1990
Sub-nanometre resolution imaging of polymer–fullerene photovoltaic blends using energy-filtered scanning electron microscopy journal April 2015
Determination of the Number of Graphene Layers: Discrete Distribution of the Secondary Electron Intensity Stemming from Individual Graphene Layers journal August 2010
The 100th anniversary of the four-point probe technique: the role of probe geometries in isotropic and anisotropic systems journal May 2015
How Well Do We Know Pareto Optimality? journal April 1991
Electron effective attenuation lengths for applications in Auger electron spectroscopy and x-ray photoelectron spectroscopy journal January 2002
Evaluation of Calculated and Measured Electron Inelastic Mean Free Paths Near Solid Surfaces journal January 1999
Auger Electron Spectroscopy: A Rational Method for Determining Thickness of Graphene Films journal March 2010
Space charge neutralization by electron-transparent suspended graphene journal January 2014
Counting graphene layers with very slow electrons journal January 2015
A Monte Carlo modeling of electron interaction with solids including cascade secondary electron production journal March 1996

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