Characterization of nanometric inclusions via nanoprojectile impacts Academic Article

abstract

• Analysis of ultrasmall dendrimer encapsulated gold nanoparticles utilizing a 520keV Au4004+ projectile probe is presented. Cores of 55, 147, and 225 Au atoms encapsulated in poly(amido amine) dendrimer were investigated. An innovative methodology of event-by-event bombardment-detection was utilized. The comparison of mass spectra of these samples shows that the secondary ion yield of Au moieties varies linearly with the number of Au atoms. Further, the agglomerates locate preferentially between two branches of the dendrimer structure. This observation demonstrates the ability of our secondary ion mass spectrometry methodology to probe chemical environments around nanoscale inclusions.

authors

• Schweikert, Emile

published proceedings

• JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B

altmetric score

• 1

author list (cited authors)

• Clubb, A. B., Eller, M. J., Verkhoturov, S. V., Schweikert, E. A., Anderson, R. M., & Crooks, R. M.

citation count

• 4

complete list of authors

• Clubb, Aaron B||Eller, Michael J||Verkhoturov, Stanislav V||Schweikert, Emile A||Anderson, Rachel M||Crooks, Richard M

publication date

• May 2016

publisher

• American Vacuum Society  Publisher

published in

• Journal of Vacuum Science and Technology B  Journal

keywords

• 40 Engineering
• 4016 Materials Engineering
• Bioengineering
• Nanotechnology

Digital Object Identifier (DOI)

• 10.1116/1.4940152

start page

• 03h104

volume

• 34

issue

• 3

URL

• http://dx.doi.org/10.1116/1.4940152