Valence electron energy-loss spectroscopy of nanoporous MgO

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

Research output: Contribution to journalArticlepeer-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 languageEnglish (US)
Article number253105
JournalApplied Physics Letters
Volume94
Issue number25
DOIs
StatePublished - Jul 6 2009

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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