Dose-rate controlled energy dispersive x-ray spectroscopic mapping of the metallic components in a biohybrid nanosystem. (30th June 2016)

• Record Type: Journal Article
• Authors: Zhu, Yuanyuan; Munro, Catherine J; Olszta, Matthew J; Edwards, Danny J; Braunschweig, Adam B; Knecht, Marc R; Browning, Nigel D
• Is Part Of: Semiconductor science and technology. Volume 31:Number 8(2016:Aug.)
• Publication Date: 2016-06-30
• Subjects: energy dispersive x-ray spectroscopy (EDS) -- hybrid nanostructure -- composition mapping; Semiconductors -- Periodicals; 621.38152
• DOI: 10.1088/0268-1242/31/8/084002
• Languages: English
• ISSNs: 0268-1242

Abstract

Abstract: 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.