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

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 (EDS) mapping in aberration-corrected scanning transmission electron microscope (STEM) 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.
Authors:
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Publication Date:
OSTI Identifier:
1324914
Report Number(s):
PNNL-SA-116408
Journal ID: ISSN 0268-1242; 48583
DOE Contract Number:
AC05-76RL01830
Resource Type:
Journal Article
Resource Relation:
Journal Name: Semiconductor Science and Technology; Journal Volume: 31; Journal Issue: 8
Publisher:
IOP Publishing
Research Org:
Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
energy dispersive X-ray spectroscopy (EDS); hybrid nanostructure; composition mapping; Environmental Molecular Sciences Laboratory