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Title: Low energy electron attenuation lengths in core–shell nanoparticles

Abstract

Here, a velocity map imaging spectrometer is used to measure photoemission from free core–shell nanoparticles, where a salt core is coated with a liquid hydrocarbon shell (i.e. squalane). By varying the radial thickness of the hydrocarbon shell, electron attenuation lengths (EALs) are determined by measuring the decay in photoemission intensity from the salt core. In squalane, electrons with kinetic energy (KE) above 2 eV are found to have EALs of 3–5 nm, whereas electrons with smaller KE (<2 eV) have significantly larger EALs of >15 nm. These results (in the context of other energy-resolved EAL measurements) suggest that the energy dependent behavior of low energy electrons is similar in dielectrics when KE > 2 eV. At this energy the EALs do not appear to exhibit strong energy dependence. However, at very low KE (<2 eV), the EALs diverge and appear to be extremely material dependent.

Authors:
 [1]; ORCiD logo [2]; ORCiD logo [2]; ORCiD logo [2]
  1. Univ. of California, Berkeley, CA (United States), Dept. of Chemistry; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Chemical Sciences Division
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Chemical Sciences Division
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); National Science Foundation (NSF)
OSTI Identifier:
1454492
Grant/Contract Number:  
AC02-05CH11231; DGE-1106400
Resource Type:
Accepted Manuscript
Journal Name:
Physical Chemistry Chemical Physics. PCCP (Print)
Additional Journal Information:
Journal Name: Physical Chemistry Chemical Physics. PCCP (Print); Journal Volume: 19; Journal Issue: 20; Related Information: © 2017 the Owner Societies.; Journal ID: ISSN 1463-9076
Publisher:
Royal Society of Chemistry
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY

Citation Formats

Jacobs, Michael I., Kostko, Oleg, Ahmed, Musahid, and Wilson, Kevin R. Low energy electron attenuation lengths in core–shell nanoparticles. United States: N. p., 2017. Web. doi:10.1039/c7cp00663b.
Jacobs, Michael I., Kostko, Oleg, Ahmed, Musahid, & Wilson, Kevin R. Low energy electron attenuation lengths in core–shell nanoparticles. United States. doi:10.1039/c7cp00663b.
Jacobs, Michael I., Kostko, Oleg, Ahmed, Musahid, and Wilson, Kevin R. Fri . "Low energy electron attenuation lengths in core–shell nanoparticles". United States. doi:10.1039/c7cp00663b. https://www.osti.gov/servlets/purl/1454492.
@article{osti_1454492,
title = {Low energy electron attenuation lengths in core–shell nanoparticles},
author = {Jacobs, Michael I. and Kostko, Oleg and Ahmed, Musahid and Wilson, Kevin R.},
abstractNote = {Here, a velocity map imaging spectrometer is used to measure photoemission from free core–shell nanoparticles, where a salt core is coated with a liquid hydrocarbon shell (i.e. squalane). By varying the radial thickness of the hydrocarbon shell, electron attenuation lengths (EALs) are determined by measuring the decay in photoemission intensity from the salt core. In squalane, electrons with kinetic energy (KE) above 2 eV are found to have EALs of 3–5 nm, whereas electrons with smaller KE (<2 eV) have significantly larger EALs of >15 nm. These results (in the context of other energy-resolved EAL measurements) suggest that the energy dependent behavior of low energy electrons is similar in dielectrics when KE > 2 eV. At this energy the EALs do not appear to exhibit strong energy dependence. However, at very low KE (<2 eV), the EALs diverge and appear to be extremely material dependent.},
doi = {10.1039/c7cp00663b},
journal = {Physical Chemistry Chemical Physics. PCCP (Print)},
number = 20,
volume = 19,
place = {United States},
year = {2017},
month = {5}
}

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Works referenced in this record:

Low-Energy Electron Diffraction and Resonances in DNA and other Helical Macromolecules
journal, September 2003


Size-Dependent Angular Distributions of Low-Energy Photoelectrons Emitted from NaCl Nanoparticles
journal, July 2007

  • Wilson, Kevin R.; Zou, Shengli; Shu, Jinian
  • Nano Letters, Vol. 7, Issue 7
  • DOI: 10.1021/nl070834g

Quantitative electron spectroscopy of surfaces: A standard data base for electron inelastic mean free paths in solids
journal, February 1979


Low-Energy Electron Irradiation of Thin Paraffin Hydrocarbon Films
journal, January 1971

  • Berry, W. B.
  • Journal of The Electrochemical Society, Vol. 118, Issue 4
  • DOI: 10.1149/1.2408119

Electron mean free path from angle-dependent photoelectron spectroscopy of aerosol particles
journal, June 2015

  • Goldmann, Maximilian; Miguel-Sánchez, Javier; West, Adam H. C.
  • The Journal of Chemical Physics, Vol. 142, Issue 22
  • DOI: 10.1063/1.4922307

First in-flight synchrotron X-ray absorption and photoemission study of carbon soot nanoparticles
journal, November 2016

  • Ouf, F. -X.; Parent, P.; Laffon, C.
  • Scientific Reports, Vol. 6, Issue 1
  • DOI: 10.1038/srep36495

Size-Dependent Velocity Map Photoelectron Imaging of Nanosized Ammonia Aerosol Particles
journal, August 2013

  • West, Adam H. C.; Yoder, Bruce L.; Signorell, Ruth
  • The Journal of Physical Chemistry A, Vol. 117, Issue 50
  • DOI: 10.1021/jp406313a

Solvated electrons at the water–air interface: surface versus bulk signal in low kinetic energy photoelectron spectroscopy
journal, January 2012

  • Buchner, Franziska; Schultz, Thomas; Lübcke, Andrea
  • Physical Chemistry Chemical Physics, Vol. 14, Issue 16
  • DOI: 10.1039/c2cp23305c

Total cross sections for slow-electron (1 20 eV) scattering in solid H 2 O
journal, November 1987


Photoionization quantum yield for liquid squalane and squalene estimated from photoelectron emission yield
journal, March 1994


Photoelectric Emission from Interstellar Dust: Grain Charging and Gas Heating
journal, June 2001

  • Weingartner, Joseph C.; Draine, B. T.
  • The Astrophysical Journal Supplement Series, Vol. 134, Issue 2
  • DOI: 10.1086/320852

Vacuum ultraviolet optical properties of squalane and squalene
journal, February 1984

  • Painter, L. R.; Attrey, J. S.; Hubbell, H. H.
  • Journal of Applied Physics, Vol. 55, Issue 3
  • DOI: 10.1063/1.333134

Attenuation lengths of low-energy electrons in free-standing carbon films
journal, January 1987

  • Martin, C.; Arakawa, E. T.; Callcott, T. A.
  • Journal of Electron Spectroscopy and Related Phenomena, Vol. 42, Issue 2
  • DOI: 10.1016/0368-2048(87)85017-X

The Reactive–Diffusive Length of OH and Ozone in Model Organic Aerosols
journal, August 2016


Nanofocusing, shadowing, and electron mean free path in the photoemission from aerosol droplets
journal, August 2016


Interfacial Solvation and Surface pH of Phenol and Dihydroxybenzene Aqueous Nanoaerosols Unveiled by Aerosol VUV Photoelectron Spectroscopy
journal, January 2017

  • Lin, Ping-Cheng; Wu, Zhong-Hang; Chen, Meng-Sin
  • The Journal of Physical Chemistry B, Vol. 121, Issue 5
  • DOI: 10.1021/acs.jpcb.6b10201

Electron escape depths of organic solids
journal, January 1999

  • Hino, Shojun
  • The Journal of Chemical Physics, Vol. 67, Issue 9
  • DOI: 10.1063/1.435391

Electron Impact Charging Properties of Size-Selected, Submicrometer Organic Particles
journal, April 1995

  • Ziemann, Paul J.; Liu, Peng; Kittelson, David B.
  • The Journal of Physical Chemistry, Vol. 99, Issue 14
  • DOI: 10.1021/j100014a037

Reconstruction of Abel-transformable images: The Gaussian basis-set expansion Abel transform method
journal, July 2002

  • Dribinski, Vladimir; Ossadtchi, Alexei; Mandelshtam, Vladimir A.
  • Review of Scientific Instruments, Vol. 73, Issue 7
  • DOI: 10.1063/1.1482156

Electronic band structure of the alkali halides. I. Experimental parameters
journal, June 1975


Probing the Heterogeneous Ozonolysis of Squalene Nanoparticles by Photoemission
journal, October 2016

  • Jacobs, Michael I.; Xu, Bo; Kostko, Oleg
  • The Journal of Physical Chemistry A, Vol. 120, Issue 43
  • DOI: 10.1021/acs.jpca.6b09061

A theoretical study of photoelectron spectra of NbO2, MoO2 and RuO2 by cluster models
journal, January 1985

  • Yoshino, Hitoshi; Shimokoshi, Kazuo; Miyazaki, Eizo
  • Journal of Electron Spectroscopy and Related Phenomena, Vol. 36, Issue 3
  • DOI: 10.1016/0368-2048(85)80024-4

Discrete dipole approximation for low-energy photoelectron emission from NaCl nanoparticles
journal, February 2012

  • Berg, Matthew J.; Wilson, Kevin R.; Sorensen, Christopher M.
  • Journal of Quantitative Spectroscopy and Radiative Transfer, Vol. 113, Issue 3
  • DOI: 10.1016/j.jqsrt.2011.10.007

Relationships between electron inelastic mean free paths, effective attenuation lengths, and mean escape depths
journal, October 1999


Guanidinium Group Remains Protonated in a Strongly Basic Arginine Solution
journal, May 2017


Low-Energy Electron Transmission through Thin-Film Molecular and Biomolecular Solids
journal, May 2007


Mean-free paths and scattering processes for 0.1–4500 eV electrons in saturated hydrocarbon films
journal, September 1987

  • Cartier, E.; Pfluger, P.; Pireaux, J. -J.
  • Applied Physics A, Vol. 44, Issue 1
  • DOI: 10.1007/BF00617890

Vibrational and electronic excitation of hexatriacontane thin films by low energy electron impact
journal, May 1990

  • Vilar, M. Rei; Schott, M.; Pfluger, P.
  • The Journal of Chemical Physics, Vol. 92, Issue 9
  • DOI: 10.1063/1.458503

Velocity map imaging of ions and electrons using electrostatic lenses: Application in photoelectron and photofragment ion imaging of molecular oxygen
journal, September 1997

  • Eppink, André T. J. B.; Parker, David H.
  • Review of Scientific Instruments, Vol. 68, Issue 9
  • DOI: 10.1063/1.1148310

VUV photoelectron imaging of biological nanoparticles: Ionization energy determination of nanophase glycine and phenylalanine-glycine-glycine
journal, January 2006

  • Wilson, Kevin R.; Peterka, Darcy S.; Jimenez-Cruz, Michael
  • Physical Chemistry Chemical Physics, Vol. 8, Issue 16
  • DOI: 10.1039/b517487b

Transport and relaxation of hot conduction electrons in an organic dielectric
journal, December 1986


Biomolecular Damage Induced by Ionizing Radiation: The Direct and Indirect Effects of Low-Energy Electrons on DNA
journal, April 2015


On transmission of low‐energy electrons in alkane thin films
journal, October 1974

  • Huang, Jan‐Tsyu J.; Magee, John L.
  • The Journal of Chemical Physics, Vol. 61, Issue 7
  • DOI: 10.1063/1.1682407

Electron range studies in solid hydrocarbon films at 77 K
journal, October 1974

  • Chang, Y. C.; Berry, W. B.
  • The Journal of Chemical Physics, Vol. 61, Issue 7
  • DOI: 10.1063/1.1682406

Hot-Electron Transport in Polymeric Dielectrics
journal, July 1984


Resonant Formation of DNA Strand Breaks by Low-Energy (3 to 20 eV) Electrons
journal, March 2000


Electron mean free path and conduction-band density-of-states in solid methane as determined from low-energy electron transmission experiments
journal, September 1985


Evaluation of Calculated and Measured Electron Inelastic Mean Free Paths Near Solid Surfaces
journal, January 1999

  • Powell, C. J.; Jablonski, A.
  • Journal of Physical and Chemical Reference Data, Vol. 28, Issue 1
  • DOI: 10.1063/1.556035

The quest for universal curves to describe the surface sensitivity of electron spectroscopies
journal, January 1988


Low energy (<3 eV) electron-attenuation length in pentacene and perylene films
journal, February 1976


Photoelectron spectroscopy of liquid water and aqueous solution: Electron effective attenuation lengths and emission-angle anisotropy
journal, March 2010

  • Ottosson, Niklas; Faubel, Manfred; Bradforth, Stephen E.
  • Journal of Electron Spectroscopy and Related Phenomena, Vol. 177, Issue 2-3
  • DOI: 10.1016/j.elspec.2009.08.007

Effective attenuation length of an electron in liquid water between 10 and 600 eV
journal, July 2014


Calculations of electron inelastic mean free paths. V. Data for 14 organic compounds over the 50-2000 eV range
journal, March 1994

  • Tanuma, S.; Powell, C. J.; Penn, D. R.
  • Surface and Interface Analysis, Vol. 21, Issue 3
  • DOI: 10.1002/sia.740210302