Determination of the surface morphology of gold-decahedra nanoparticles using an off-axis electron holography dual-lens imaging system

J. Cantu-Valle; F. Ruiz-Zepeda; E. Voelkl; M. Kawasaki; U. Santiago; M. José-Yacaman; A. Ponce

doi:10.1016/j.micron.2013.07.009

Determination of the surface morphology of gold-decahedra nanoparticles using an off-axis electron holography dual-lens imaging system

J. Cantu-Valle, F. Ruiz-Zepeda, E. Voelkl, M. Kawasaki, U. Santiago, M. José-Yacaman, A. Ponce

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

9 Scopus citations

Abstract

The purpose of this paper is to show surface irregularities in gold decahedra nanoparticles extracted by using off-axis electron holography in a JEOL ARM 200F microscope. Electron holography has been used in a dual-lens system within the objective lenses: main objective lens and objective minilens. Parameters such as biprism voltage, fringe spacing (σ), fringe width (W) and optimum fringe contrast have been calibrated. The reliability of the transmission electron microscope performance with these parameters was carried out through a plug-in in the Digital-Micrograph software, which considers the mean inner potential within the particle leading a precise determination of the morphological surface of decahedral nanoparticles obtained from the reconstructed unwrapped phase and image processing. We have also shown that electron holography has the capability to extract information from nanoparticle shape that is currently impossible to obtain with any other electron microscopy technique.

Original language	English (US)
Pages (from-to)	82-86
Number of pages	5
Journal	Micron
Volume	54-55
DOIs	https://doi.org/10.1016/j.micron.2013.07.009
State	Published - Nov 2013
Externally published	Yes

Keywords

Dual-lens system
Electron holography
Metallic nanoparticles
Transmission electron microscopy

ASJC Scopus subject areas

Structural Biology
General Materials Science
General Physics and Astronomy
Cell Biology

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10.1016/j.micron.2013.07.009

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@article{08b1164e415a40eb8b6e61bd70c9dfed,

title = "Determination of the surface morphology of gold-decahedra nanoparticles using an off-axis electron holography dual-lens imaging system",

abstract = "The purpose of this paper is to show surface irregularities in gold decahedra nanoparticles extracted by using off-axis electron holography in a JEOL ARM 200F microscope. Electron holography has been used in a dual-lens system within the objective lenses: main objective lens and objective minilens. Parameters such as biprism voltage, fringe spacing (σ), fringe width (W) and optimum fringe contrast have been calibrated. The reliability of the transmission electron microscope performance with these parameters was carried out through a plug-in in the Digital-Micrograph software, which considers the mean inner potential within the particle leading a precise determination of the morphological surface of decahedral nanoparticles obtained from the reconstructed unwrapped phase and image processing. We have also shown that electron holography has the capability to extract information from nanoparticle shape that is currently impossible to obtain with any other electron microscopy technique.",

keywords = "Dual-lens system, Electron holography, Metallic nanoparticles, Transmission electron microscopy",

author = "J. Cantu-Valle and F. Ruiz-Zepeda and E. Voelkl and M. Kawasaki and U. Santiago and M. Jos{\'e}-Yacaman and A. Ponce",

note = "Funding Information: This project was supported by grants from the National Center for Research Resources (5 G12RR013646-12 ) and the National Institute on Minority Health and Health Disparities ( G12MD007591 ) from the National Institutes of Health. The authors would like to acknowledge to the NSF for support with grants DMR-1103730 , “Alloys at the Nanoscale: The Case of Nanoparticles Second Phase and PREM: NSF PREM Grant # DMR 0934218. Also would like to acknowledge to CONACYT – 311149 and the Instituto de Innovaci{\'o}n y Transferencia de Tecnolog{\'i}ca de Nuevo Le{\'o}n I 2 T 2 .",

year = "2013",

month = nov,

doi = "10.1016/j.micron.2013.07.009",

language = "English (US)",

volume = "54-55",

pages = "82--86",

journal = "Micron",

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T1 - Determination of the surface morphology of gold-decahedra nanoparticles using an off-axis electron holography dual-lens imaging system

AU - Cantu-Valle, J.

AU - Ruiz-Zepeda, F.

AU - Voelkl, E.

AU - Kawasaki, M.

AU - Santiago, U.

AU - José-Yacaman, M.

AU - Ponce, A.

N1 - Funding Information: This project was supported by grants from the National Center for Research Resources (5 G12RR013646-12 ) and the National Institute on Minority Health and Health Disparities ( G12MD007591 ) from the National Institutes of Health. The authors would like to acknowledge to the NSF for support with grants DMR-1103730 , “Alloys at the Nanoscale: The Case of Nanoparticles Second Phase and PREM: NSF PREM Grant # DMR 0934218. Also would like to acknowledge to CONACYT – 311149 and the Instituto de Innovación y Transferencia de Tecnologíca de Nuevo León I 2 T 2 .

PY - 2013/11

Y1 - 2013/11

N2 - The purpose of this paper is to show surface irregularities in gold decahedra nanoparticles extracted by using off-axis electron holography in a JEOL ARM 200F microscope. Electron holography has been used in a dual-lens system within the objective lenses: main objective lens and objective minilens. Parameters such as biprism voltage, fringe spacing (σ), fringe width (W) and optimum fringe contrast have been calibrated. The reliability of the transmission electron microscope performance with these parameters was carried out through a plug-in in the Digital-Micrograph software, which considers the mean inner potential within the particle leading a precise determination of the morphological surface of decahedral nanoparticles obtained from the reconstructed unwrapped phase and image processing. We have also shown that electron holography has the capability to extract information from nanoparticle shape that is currently impossible to obtain with any other electron microscopy technique.

AB - The purpose of this paper is to show surface irregularities in gold decahedra nanoparticles extracted by using off-axis electron holography in a JEOL ARM 200F microscope. Electron holography has been used in a dual-lens system within the objective lenses: main objective lens and objective minilens. Parameters such as biprism voltage, fringe spacing (σ), fringe width (W) and optimum fringe contrast have been calibrated. The reliability of the transmission electron microscope performance with these parameters was carried out through a plug-in in the Digital-Micrograph software, which considers the mean inner potential within the particle leading a precise determination of the morphological surface of decahedral nanoparticles obtained from the reconstructed unwrapped phase and image processing. We have also shown that electron holography has the capability to extract information from nanoparticle shape that is currently impossible to obtain with any other electron microscopy technique.

KW - Dual-lens system

KW - Electron holography

KW - Metallic nanoparticles

KW - Transmission electron microscopy

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Determination of the surface morphology of gold-decahedra nanoparticles using an off-axis electron holography dual-lens imaging system

Abstract

Keywords

ASJC Scopus subject areas

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