Size-dependent angular distributions of low-energy photoelectrons emitted from NaCI nanoparticles

Kevin R. Wilson; Zou Shengli; Shu Jinian; Eckart Rühl; Stephen R. Leone; George C. Schatz; Musahid Ahmed

doi:10.1021/nl070834g

Size-dependent angular distributions of low-energy photoelectrons emitted from NaCI nanoparticles

Kevin R. Wilson, Zou Shengli, Shu Jinian, Eckart Rühl, Stephen R. Leone, George C. Schatz, Musahid Ahmed^*

^*Corresponding author for this work

Chemistry

Research output: Contribution to journal › Article › peer-review

57 Scopus citations

Abstract

Angle-resolved threshold photoelectron spectra are recorded for size-selected beams of sodium chloride nanoparticles (radius = 25-250 nm). The photoelectron angular distributions exhibit a size-dependent asymmetry that is inversely proportional to particle radius. A model of the internal electric field amplitude and the photoelectron escape probability inside the particles reveals that the asymmetry in photoemission arises because the finite dimensions of the particle are comparable to both the photon penetration depth (14-22 nm) and electron escape length (10 nm).

Original language	English (US)
Pages (from-to)	2014-2019
Number of pages	6
Journal	Nano letters
Volume	7
Issue number	7
DOIs	https://doi.org/10.1021/nl070834g
State	Published - Jul 2007

ASJC Scopus subject areas

Bioengineering
General Chemistry
General Materials Science
Condensed Matter Physics
Mechanical Engineering

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abstract = "Angle-resolved threshold photoelectron spectra are recorded for size-selected beams of sodium chloride nanoparticles (radius = 25-250 nm). The photoelectron angular distributions exhibit a size-dependent asymmetry that is inversely proportional to particle radius. A model of the internal electric field amplitude and the photoelectron escape probability inside the particles reveals that the asymmetry in photoemission arises because the finite dimensions of the particle are comparable to both the photon penetration depth (14-22 nm) and electron escape length (10 nm).",

author = "Wilson, {Kevin R.} and Zou Shengli and Shu Jinian and Eckart R{\"u}hl and Leone, {Stephen R.} and Schatz, {George C.} and Musahid Ahmed",

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AU - Wilson, Kevin R.

AU - Shengli, Zou

AU - Jinian, Shu

AU - Rühl, Eckart

AU - Leone, Stephen R.

AU - Schatz, George C.

AU - Ahmed, Musahid

PY - 2007/7

Y1 - 2007/7

N2 - Angle-resolved threshold photoelectron spectra are recorded for size-selected beams of sodium chloride nanoparticles (radius = 25-250 nm). The photoelectron angular distributions exhibit a size-dependent asymmetry that is inversely proportional to particle radius. A model of the internal electric field amplitude and the photoelectron escape probability inside the particles reveals that the asymmetry in photoemission arises because the finite dimensions of the particle are comparable to both the photon penetration depth (14-22 nm) and electron escape length (10 nm).

AB - Angle-resolved threshold photoelectron spectra are recorded for size-selected beams of sodium chloride nanoparticles (radius = 25-250 nm). The photoelectron angular distributions exhibit a size-dependent asymmetry that is inversely proportional to particle radius. A model of the internal electric field amplitude and the photoelectron escape probability inside the particles reveals that the asymmetry in photoemission arises because the finite dimensions of the particle are comparable to both the photon penetration depth (14-22 nm) and electron escape length (10 nm).

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Size-dependent angular distributions of low-energy photoelectrons emitted from NaCI nanoparticles

Abstract

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