Atmospheric Pressure Scanning Transmission Electron Microscopy

de Jonge, Niels, Wilbur C. Bigelow and Gabriel M. Veith, 2010
nanoparticles at atmospheric pressure within reaction cell
Image courtesy of Nano Letters

Abstract

Scanning transmission electron microscope (STEM) images of gold nanoparticles at atmospheric pressure have been recorded through a 0.36 mm thick mixture of CO, O2, and He. This was accomplished using a reaction cell consisting of two electron-transparent silicon nitride membranes. Gold nanoparticles of a full width at half-maximum diameter of 1.0 nm were visible above the background noise, and the achieved edge resolution was 0.4 nm in accordance with calculations of the beam broadening.

Impact Statement

STEM imaging of gold nanoparticles at atmospheric pressure in a mixture of CO, O2, and He using the Poseidon LC-(S)TEM sample holder.