Velocity map imaging of inelastic and elastic low energy electron scattering in organic nanoparticles

Kostko, Oleg; Jacobs, Michael I.; Xu, Bo; Wilson, Kevin R.; Ahmed, Musahid

doi:10.1063/1.5126343

Title: Velocity map imaging of inelastic and elastic low energy electron scattering in organic nanoparticles

Journal Article · Wed Sep 18 00:00:00 EDT 2019 · Journal of Chemical Physics

DOI:https://doi.org/10.1063/1.5126343· OSTI ID:1564077

Kostko, Oleg ^[1]; Jacobs, Michael I. ^[2]; Xu, Bo ^[1]; Wilson, Kevin R. ^[1]; Ahmed, Musahid ^[1]

Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States)

Electron transport is of fundamental importance and has application in a variety of fields. Different scattering mechanisms affect electron transport in the condensed phase; hence, it is important to comprehensively understand these mechanisms and their scattering cross sections to predict electron transport properties. Whereas electron transport is well understood for high kinetic energy (KE) electrons, there is a discrepancy in the experimental and theoretical values for the Inelastic Mean Free Path (IMFP) in the low KE regime. In this work, velocity map imaging soft X-ray photoelectron spectroscopy is applied to unsupported organic nanoparticles (squalene) to extract experimental values of inelastic and elastic mean free paths (EMFPs). The obtained data are used to calculate corresponding scattering cross sections. The data demonstrate a decrease in the IMFP and increase in the EMFP with increasing electron KE between 10 and 50 eV.

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Research Organization:: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences, and Biosciences Division

Grant/Contract Number:: AC02-05CH11231

OSTI ID:: 1564077

Alternate ID(s):: OSTI ID: 1592793

Journal Information:: Journal of Chemical Physics, Vol. 151, Issue 18; ISSN 0021-9606

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 11 works

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