About: Imaging of carbon nanostructures by low energy STEM below 5 keV

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Our work deals with the imaging of nanostructures composed of light biogenic elements, such as carbon nanotubes, by low energy scanning transmission electron microscopy (STEM). Compared to imaging at the voltages commonly used for TEM and STEM, low energy electrons seem very promising in terms of specimen damage that is caused by a number of elastic andn inelastic collisions. In carbonaceous materials, the most problematic is probably the knock-on damage, where the structure can be impaired by carbon atom displacement. To avoid this problem with structures composed of light elements, a reduction in beam voltage going down to 5 keV has recently been proposed. The range below 5 keV has not been explored yet for this purpose, although electron scattering in matter is lower for these energies, which allows achieving a higher spatial resolution. We aim to demonstrate that additional reduction of incident electron energy may yield interesting contrast features. Our work deals with the imaging of nanostructures composed of light biogenic elements, such as carbon nanotubes, by low energy scanning transmission electron microscopy (STEM). Compared to imaging at the voltages commonly used for TEM and STEM, low energy electrons seem very promising in terms of specimen damage that is caused by a number of elastic andn inelastic collisions. In carbonaceous materials, the most problematic is probably the knock-on damage, where the structure can be impaired by carbon atom displacement. To avoid this problem with structures composed of light elements, a reduction in beam voltage going down to 5 keV has recently been proposed. The range below 5 keV has not been explored yet for this purpose, although electron scattering in matter is lower for these energies, which allows achieving a higher spatial resolution. We aim to demonstrate that additional reduction of incident electron energy may yield interesting contrast features. (en)
Title	Imaging of carbon nanostructures by low energy STEM below 5 keV Imaging of carbon nanostructures by low energy STEM below 5 keV (en)
skos:prefLabel	Imaging of carbon nanostructures by low energy STEM below 5 keV Imaging of carbon nanostructures by low energy STEM below 5 keV (en)
skos:notation	RIV/68081731:_____/14:00434115!RIV15-AV0-68081731
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(LO1212)
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Knápek, Alexandr Pokorná, Zuzana
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav přístrojové techniky AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	20490
http://linked.open...ai/riv/idVysledku	RIV/68081731:_____/14:00434115
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	low energy STEM; carbon nanostructures (en)
http://linked.open.../riv/klicoveSlovo	carbon nanostructures low energy STEM
http://linked.open...ontrolniKodProRIV	[6EC45CC2B4F1]
http://linked.open...v/mistoKonaniAkce	Praha
http://linked.open...i/riv/mistoVydani	Praha
http://linked.open...i/riv/nazevZdroje	18th International Microscopy Congres. Proceedings
http://linked.open...in/vavai/riv/obor	JA
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	ALISI - Centre of advanced diagnostic methods and technologies
http://linked.open...UplatneniVysledku	2014
http://linked.open...iv/tvurceVysledku	Knápek, Alexandr Jašek, O. Prášek, J. Pokorná, Zuzana Majzlíková, P.
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2014-09-07 (xsd:date)
number of pages	2 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Czechoslovak Microscopy Society
https://schema.org/isbn	978-80-260-6720-7

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