Aufgrund von Vorbereitungen auf eine neue Version von KOPS, können derzeit keine Publikationen eingereicht werden. (Due to preparations for a new version of KOPS, no publications can be submitted currently.)
Type of Publication: | Journal article |
Publication status: | Published |
URI (citable link): | http://nbn-resolving.de/urn:nbn:de:bsz:352-2-1vliq7vgq3e7j8 |
Author: | Basu, Tuhin Shuvra; Diesch, Simon; Scheer, Elke |
Year of publication: | 2018 |
Published in: | Nanoscale ; 10 (2018), 29. - pp. 13949-13958. - ISSN 2040-3364. - eISSN 2040-3372 |
Pubmed ID: | 29781492 |
DOI (citable link): | https://dx.doi.org/10.1039/c8nr01552j |
Summary: |
We have fabricated organically capped stable luminescent silicon nanocrystals with narrow size distribution by a novel, high yield and easy to implement technique. We demonstrate transport measurements of individual silicon nanocrystals by scanning tunnelling microscopy at a low temperature in a double-barrier tunnel junction arrangement in which we observed pronounced single electron tunnelling effects. The tunnelling spectroscopy of these nanocrystals with different diameters reveals quantum confinement induced bandgap modifications. Furthermore, from the features in the tunnelling spectra, we differentiate several energy contributions arising from electronic interactions inside the nanocrystal. By applying a magnetic field, we have detected a variation in the differential conductance profile that we attribute to arising from higher order tunnelling processes. We have also systematically simulated our experimental data with the Orthodox theory, and the results show good agreement with the experiment. The study establishes a correlation between the nanocrystal size and quantum confinement induced band-structure modifications which will pave the way to devise tailored nanocrystals.
|
Subject (DDC): | 530 Physics |
Link to License: | In Copyright |
Bibliography of Konstanz: | Yes |
Refereed: | Yes |
BASU, Tuhin Shuvra, Simon DIESCH, Elke SCHEER, 2018. Single-electron transport through stabilised silicon nanocrystals. In: Nanoscale. 10(29), pp. 13949-13958. ISSN 2040-3364. eISSN 2040-3372. Available under: doi: 10.1039/c8nr01552j
@article{Basu2018-07-26Singl-42936, title={Single-electron transport through stabilised silicon nanocrystals}, year={2018}, doi={10.1039/c8nr01552j}, number={29}, volume={10}, issn={2040-3364}, journal={Nanoscale}, pages={13949--13958}, author={Basu, Tuhin Shuvra and Diesch, Simon and Scheer, Elke} }
<rdf:RDF xmlns:dcterms="http://purl.org/dc/terms/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dspace="http://digital-repositories.org/ontologies/dspace/0.1.0#" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:void="http://rdfs.org/ns/void#" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/rdf/resource/123456789/42936"> <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/rdf/resource/123456789/52"/> <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/rdf/resource/123456789/52"/> <dc:contributor>Diesch, Simon</dc:contributor> <dc:contributor>Basu, Tuhin Shuvra</dc:contributor> <dc:creator>Diesch, Simon</dc:creator> <dcterms:issued>2018-07-26</dcterms:issued> <dc:language>eng</dc:language> <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/42936/3/Basu_2-1vliq7vgq3e7j8.pdf"/> <dcterms:title>Single-electron transport through stabilised silicon nanocrystals</dcterms:title> <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/rdf/resource/123456789/41"/> <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/42936"/> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2018-07-31T11:57:05Z</dc:date> <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/> <dc:contributor>Scheer, Elke</dc:contributor> <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/rdf/resource/123456789/41"/> <foaf:homepage rdf:resource="http://localhost:8080/jspui"/> <dcterms:rights rdf:resource="https://rightsstatements.org/page/InC/1.0/"/> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2018-07-31T11:57:05Z</dcterms:available> <dc:rights>terms-of-use</dc:rights> <dcterms:abstract xml:lang="eng">We have fabricated organically capped stable luminescent silicon nanocrystals with narrow size distribution by a novel, high yield and easy to implement technique. We demonstrate transport measurements of individual silicon nanocrystals by scanning tunnelling microscopy at a low temperature in a double-barrier tunnel junction arrangement in which we observed pronounced single electron tunnelling effects. The tunnelling spectroscopy of these nanocrystals with different diameters reveals quantum confinement induced bandgap modifications. Furthermore, from the features in the tunnelling spectra, we differentiate several energy contributions arising from electronic interactions inside the nanocrystal. By applying a magnetic field, we have detected a variation in the differential conductance profile that we attribute to arising from higher order tunnelling processes. We have also systematically simulated our experimental data with the Orthodox theory, and the results show good agreement with the experiment. The study establishes a correlation between the nanocrystal size and quantum confinement induced band-structure modifications which will pave the way to devise tailored nanocrystals.</dcterms:abstract> <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/42936/3/Basu_2-1vliq7vgq3e7j8.pdf"/> <dc:creator>Scheer, Elke</dc:creator> <dc:creator>Basu, Tuhin Shuvra</dc:creator> </rdf:Description> </rdf:RDF>
Basu_2-1vliq7vgq3e7j8.pdf | 314 |