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

Journal Article · Thu Jun 30 00:00:00 EDT 2016 · Semiconductor Science and Technology

DOI:https://doi.org/10.1088/0268-1242/31/8/084002· OSTI ID:1324914

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

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.

• Research Organization: Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Environmental Molecular Sciences Lab. (EMSL)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 1324914
• Report Number(s): PNNL-SA-116408; 48583
• Journal Information: Semiconductor Science and Technology, Vol. 31, Issue 8; ISSN 0268-1242
• Publisher: IOP Publishing
• Country of Publication: United States
• Language: English

Related Subjects

energy dispersive X-ray spectroscopy (EDS)
hybrid nanostructure
composition mapping
Environmental Molecular Sciences Laboratory