dc.contributor.author
Haverkamp, Caspar
dc.contributor.author
Sarau, George
dc.contributor.author
Polyakov, Mikhail N.
dc.contributor.author
Utke, Ivo
dc.contributor.author
Puydinger dos Santos, Marcos V.
dc.contributor.author
Christiansen, Silke
dc.contributor.author
Höflich, Katja
dc.date.accessioned
2019-08-26T15:20:04Z
dc.date.available
2019-08-26T15:20:04Z
dc.identifier.uri
https://refubium.fu-berlin.de/handle/fub188/25356
dc.identifier.uri
http://dx.doi.org/10.17169/refubium-4060
dc.description.abstract
A fluorine free copper precursor, Cu(tbaoac)2 with the chemical sum formula CuC16O6H26 is introduced for focused electron beam induced deposition (FEBID). FEBID with 15 keV and 7 nA results in deposits with an atomic composition of Cu:O:C of approximately 1:1:2. Transmission electron microscopy proved that pure copper nanocrystals with sizes of up to around 15 nm were dispersed inside the carbonaceous matrix. Raman investigations revealed a high degree of amorphization of the carbonaceous matrix and showed hints for partial copper oxidation taking place selectively on the surfaces of the deposits. Optical transmission/reflection measurements of deposited pads showed a dielectric behavior of the material in the optical spectral range. The general behavior of the permittivity could be described by applying the Maxwell–Garnett mixing model to amorphous carbon and copper. The dielectric function measured from deposited pads was used to simulate the optical response of tip arrays fabricated out of the same precursor and showed good agreement with measurements. This paves the way for future plasmonic applications with copper-FEBID.
en
dc.format.extent
8 Seiten
dc.rights.uri
https://creativecommons.org/licenses/by/4.0/
dc.subject
focused electron beam induced deposition
en
dc.subject
nanostructures
en
dc.subject
optical properties
en
dc.subject.ddc
500 Naturwissenschaften und Mathematik::530 Physik::530 Physik
dc.title
A novel copper precursor for electron beam induced deposition
dc.type
Wissenschaftlicher Artikel
dcterms.bibliographicCitation.doi
10.3762/bjnano.9.113
dcterms.bibliographicCitation.journaltitle
Beilstein journal of nanotechnology
dcterms.bibliographicCitation.pagestart
1220
dcterms.bibliographicCitation.pageend
1227
dcterms.bibliographicCitation.volume
9
dcterms.bibliographicCitation.url
https://doi.org/10.3762/bjnano.9.113
refubium.affiliation
Physik
refubium.resourceType.isindependentpub
no
dcterms.accessRights.openaire
open access
dcterms.isPartOf.eissn
2190-4286