Atmospheric pressure scanning transmission electron microscopy

Journal Article · Fri Jan 01 00:00:00 EST 2010 · Nano Letters

DOI:https://doi.org/10.1021/nl904254g· OSTI ID:972026

De Jonge, Niels ^[1]; Veith, Gabriel M ^[1]; Bigelow, Wilbur C ^[1]

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1. ORNL

Scanning transmission electron microscope (STEM) images of gold nanoparticles (2.1 nm average diameter) 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 mounted on a specially designed specimen rod. Gas flow occurred through plastic tubing from the outside of the microscope to the specimen region and back. Gold nanoparticles of a full width half maximum diameter of 1.0 nm were visible above the background noise and the achieved resolution was 0.5 nm in accordance with calculations of the beam broadening.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)
• Sponsoring Organization: Work for Others (WFO)
• DOE Contract Number: DE-AC05-00OR22725
• OSTI ID: 972026
• Journal Information: Nano Letters, Vol. online, Issue 3
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ATMOSPHERIC PRESSURE
ELECTRON MICROSCOPES
GOLD
RESOLUTION
TRANSMISSION ELECTRON MICROSCOPY
SCANNING ELECTRON MICROSCOPY
SAMPLE HOLDERS
DESIGN