Valence electron energy-loss spectroscopy of nanoporous MgO

N. Jiang; D. Su; John Spence; A. Howie

doi:10.1063/1.3158594

Valence electron energy-loss spectroscopy of nanoporous MgO

N. Jiang, D. Su, John Spence, A. Howie

Physics

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

6 Scopus citations

Abstract

This work reports experimental evidence for a redshift in the main peak in the valence electron energy loss spectrum of nanoporous MgO. An interpretation is given based on effective-medium response theory. We find that the main peak energy depends on the density of nanopores within the illuminated area. As a result, by combining electron energy loss spectroscopy with transmission electron microscopy imaging, the loss peak position may be used to measure the porosity of nanoporous materials.

Original language	English (US)
Article number	253105
Journal	Applied Physics Letters
Volume	94
Issue number	25
DOIs	https://doi.org/10.1063/1.3158594
State	Published - 2009

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.3158594

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title = "Valence electron energy-loss spectroscopy of nanoporous MgO",

abstract = "This work reports experimental evidence for a redshift in the main peak in the valence electron energy loss spectrum of nanoporous MgO. An interpretation is given based on effective-medium response theory. We find that the main peak energy depends on the density of nanopores within the illuminated area. As a result, by combining electron energy loss spectroscopy with transmission electron microscopy imaging, the loss peak position may be used to measure the porosity of nanoporous materials.",

author = "N. Jiang and D. Su and John Spence and A. Howie",

note = "Funding Information: This work is supported by the NSF Grant No. DMR0603993. We would like to thank Feng He for the preparation of nanoporous MgO and assistance with the x-ray diffraction measurements. The use of facilities within the Center for Solid State Science at Arizona State University is also acknowledged. ",

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language = "English (US)",

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AU - Jiang, N.

AU - Su, D.

AU - Spence, John

AU - Howie, A.

N1 - Funding Information: This work is supported by the NSF Grant No. DMR0603993. We would like to thank Feng He for the preparation of nanoporous MgO and assistance with the x-ray diffraction measurements. The use of facilities within the Center for Solid State Science at Arizona State University is also acknowledged.

PY - 2009

Y1 - 2009

N2 - This work reports experimental evidence for a redshift in the main peak in the valence electron energy loss spectrum of nanoporous MgO. An interpretation is given based on effective-medium response theory. We find that the main peak energy depends on the density of nanopores within the illuminated area. As a result, by combining electron energy loss spectroscopy with transmission electron microscopy imaging, the loss peak position may be used to measure the porosity of nanoporous materials.

AB - This work reports experimental evidence for a redshift in the main peak in the valence electron energy loss spectrum of nanoporous MgO. An interpretation is given based on effective-medium response theory. We find that the main peak energy depends on the density of nanopores within the illuminated area. As a result, by combining electron energy loss spectroscopy with transmission electron microscopy imaging, the loss peak position may be used to measure the porosity of nanoporous materials.

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Valence electron energy-loss spectroscopy of nanoporous MgO

Abstract

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