Nanoparticle discrimination based on wavelength and lifetime-multiplexed cathodoluminescence microscopy

Journal Article (2017)
Authors

Mathijs Garming (ImPhys/Charged Particle Optics)

IGC Weppelman (ImPhys/Charged Particle Optics)

Pascal De Boer (University Medical Center Groningen)

Felipe Perona Martínez (University Medical Center Groningen)

Romana Schirhagl (University Medical Center Groningen)

J.P. Hoogenboom (ImPhys/Charged Particle Optics)

RJ Moerland (ImPhys/Quantitative Imaging)

Research Group
ImPhys/Charged Particle Optics
Copyright
© 2017 M.W.H. Garming, I.G.C. Weppelman, Pascal De Boer, Felipe Perona Martínez, Romana Schirhagl, J.P. Hoogenboom, R.J. Moerland
To reference this document use:
https://doi.org/10.1039/c7nr00927e
More Info
expand_more
Publication Year
2017
Language
English
Copyright
© 2017 M.W.H. Garming, I.G.C. Weppelman, Pascal De Boer, Felipe Perona Martínez, Romana Schirhagl, J.P. Hoogenboom, R.J. Moerland
Research Group
ImPhys/Charged Particle Optics
Issue number
34
Volume number
9
Pages (from-to)
12727-12734
DOI:
https://doi.org/10.1039/c7nr00927e
Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Abstract

Nanomaterials can be identified in high-resolution electron microscopy images using spectrally-selective cathodoluminescence. Capabilities for multiplex detection can however be limited, e.g., due to spectral overlap or availability of filters. Also, the available photon flux may be limited due to degradation under electron irradiation. Here, we demonstrate single-pass cathodoluminescence-lifetime based discrimination of different nanoparticles, using a pulsed electron beam. We also show that cathodoluminescence lifetime is a robust parameter even when the nanoparticle cathodoluminescence intensity decays over an order of magnitude. We create lifetime maps, where the lifetime of the cathodoluminescence emission is correlated with the emission intensity and secondary-electron images. The consistency of lifetime-based discrimination is verified by also correlating the emission wavelength and the lifetime of nanoparticles. Our results show how cathodoluminescence lifetime provides an additional channel of information in electron microscopy.

Files

C7nr00927e.pdf
(pdf | 4.66 Mb)
License info not available