Dose-rate controlled energy dispersive x-ray spectroscopic mapping of the metallic components in a biohybrid nanosystem

Yuanyuan Zhu, Catherine J. Munro, Matthew J. Olszta, Danny J. Edwards, Adam Braunschweig, Marc Knecht, Nigel D. Browning

Research output: Contribution to journalArticle

1 Scopus citations


In this work, we showcase that through precise control of the electron dose rate, state-of-the-art large solid angle energy dispersive x-ray spectroscopy mapping in aberration-corrected scanning transmission electron microscope is capable of faithful and unambiguous chemical characterization of the Pt and Pd distribution in a peptide-mediated nanosystem. This low-dose-rate recording scheme adds another dimension of flexibility to the design of elemental mapping experiments, and holds significant potential for extending its application to a wide variety of beam sensitive hybrid nanostructures.

Original languageEnglish (US)
Article number084002
JournalSemiconductor Science and Technology
Issue number8
StatePublished - Jun 30 2016



  • composition mapping
  • energy dispersive x-ray spectroscopy (EDS)
  • hybrid nanostructure

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Condensed Matter Physics

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