High-resolution chemical imaging of gold nanoparticles using hard x-ray ptychography

R. Hoppe; J. Reinhardt; G. Hofmann; J. Patommel; J.-D. Grunwaldt; Christian Danvad Damsgaard; G. Wellenreuther; G. Falkenberg; C. G. Schroer

doi:10.1063/1.4807020

High-resolution chemical imaging of gold nanoparticles using hard x-ray ptychography

R. Hoppe, J. Reinhardt, G. Hofmann, J. Patommel, J.-D. Grunwaldt, Christian Danvad Damsgaard, G. Wellenreuther, G. Falkenberg, C. G. Schroer

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Abstract

We combine resonant scattering with (ptychographic) scanning coherent diffraction microscopy to determine the chemical state of gold nanoparticles with high spatial resolution. Ptychographic images of the sample are recorded for a series of energies around the gold L3 absorption edge. From these data, chemical information in the form of absorption and resonant scattering spectra is reconstructed at each location in the sample. For gold nanoparticles of about 100 nm diameter, a spatial resolution of about 20-30 nm is obtained. In the future, this microscopy approach will open the way to operando studies of heterogeneous catalysts on the nanometer scale.

Original language	English
Article number	203104
Journal	Applied Physics Letters
Volume	102
Issue number	20
Number of pages	4
ISSN	0003-6951
DOIs	https://doi.org/10.1063/1.4807020
Publication status	Published - 2013

Bibliographical note

Copyright 2013 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters / Volume 102 / Issue 20 and may be found at http://apl.aip.org.globalproxy.cvt.dk/resource/1/applab/v102/i20/p203104_s1.

Keywords

Coherent scattering
Metal nanoparticles
Gold

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ApplPhysLett 102 203104Final published version, 897 KB

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title = "High-resolution chemical imaging of gold nanoparticles using hard x-ray ptychography",

abstract = "We combine resonant scattering with (ptychographic) scanning coherent diffraction microscopy to determine the chemical state of gold nanoparticles with high spatial resolution. Ptychographic images of the sample are recorded for a series of energies around the gold L3 absorption edge. From these data, chemical information in the form of absorption and resonant scattering spectra is reconstructed at each location in the sample. For gold nanoparticles of about 100 nm diameter, a spatial resolution of about 20-30 nm is obtained. In the future, this microscopy approach will open the way to operando studies of heterogeneous catalysts on the nanometer scale.",

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author = "R. Hoppe and J. Reinhardt and G. Hofmann and J. Patommel and J.-D. Grunwaldt and Damsgaard, {Christian Danvad} and G. Wellenreuther and G. Falkenberg and Schroer, {C. G.}",

note = "Copyright 2013 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters / Volume 102 / Issue 20 and may be found at http://apl.aip.org.globalproxy.cvt.dk/resource/1/applab/v102/i20/p203104_s1. ",

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AU - Hoppe, R.

AU - Reinhardt, J.

AU - Hofmann, G.

AU - Patommel, J.

AU - Grunwaldt, J.-D.

AU - Damsgaard, Christian Danvad

AU - Wellenreuther, G.

AU - Falkenberg, G.

AU - Schroer, C. G.

N1 - Copyright 2013 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters / Volume 102 / Issue 20 and may be found at http://apl.aip.org.globalproxy.cvt.dk/resource/1/applab/v102/i20/p203104_s1.

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N2 - We combine resonant scattering with (ptychographic) scanning coherent diffraction microscopy to determine the chemical state of gold nanoparticles with high spatial resolution. Ptychographic images of the sample are recorded for a series of energies around the gold L3 absorption edge. From these data, chemical information in the form of absorption and resonant scattering spectra is reconstructed at each location in the sample. For gold nanoparticles of about 100 nm diameter, a spatial resolution of about 20-30 nm is obtained. In the future, this microscopy approach will open the way to operando studies of heterogeneous catalysts on the nanometer scale.

AB - We combine resonant scattering with (ptychographic) scanning coherent diffraction microscopy to determine the chemical state of gold nanoparticles with high spatial resolution. Ptychographic images of the sample are recorded for a series of energies around the gold L3 absorption edge. From these data, chemical information in the form of absorption and resonant scattering spectra is reconstructed at each location in the sample. For gold nanoparticles of about 100 nm diameter, a spatial resolution of about 20-30 nm is obtained. In the future, this microscopy approach will open the way to operando studies of heterogeneous catalysts on the nanometer scale.

KW - Coherent scattering

KW - Metal nanoparticles

KW - Gold

U2 - 10.1063/1.4807020

DO - 10.1063/1.4807020

M3 - Journal article

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JO - Applied Physics Letters

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High-resolution chemical imaging of gold nanoparticles using hard x-ray ptychography

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