Comparison of EFTEM and STEM EELS plasmon imaging of gold nanoparticles in a monochromated TEM

Schaffer, B., Grogger, W., Kothleitner, G. and Hofer, F. (2010) Comparison of EFTEM and STEM EELS plasmon imaging of gold nanoparticles in a monochromated TEM. Ultramicroscopy, 110(8), pp. 1087-1093. (doi: 10.1016/j.ultramic.2009.12.012)

Abstract

We present and compare two different imaging techniques for plasmonic excitations in metallic nanoparticles based on high energy-resolution electron energy-loss spectroscopy in a monochromated transmission electron microscope. We demonstrate that a recently developed monochromated energy-filtering (EFTEM) approach can be used in addition to the well established scanning technique to directly obtain plasmon images in the energy range below 1 eV. The EFTEM technique is described in detail, and a double experiment performed on the same, triangular gold nanoparticle compares equivalent data acquired by both techniques, respectively.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Schaffer, Dr Bernhard
• Authors: Schaffer, B., Grogger, W., Kothleitner, G., and Hofer, F.
• Subjects: Q Science > QC Physics
• College/School: College of Science and Engineering > School of Physics and Astronomy
• Journal Name: Ultramicroscopy
• Publisher: Elsevier
• ISSN: 0304-3991
• ISSN (Online): 1879-2723
• Published Online: 04 January 2010
• Copyright Holders: Copyright © 2010 Elsevier
• First Published: First published in Ultramicroscopy 110(8):1087-1093
• Publisher Policy: Reproduced in accordance with the copyright policy of the publisher