Linked Life Data

19320494

Source:http://linkedlifedata.com/resource/pubmed/id/19320494

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2009-5-13
pubmed:abstractText
The fabrication of core-shell structures is crucial for many nanowire device concepts. For the proper tailoring of their electronic properties, control of structural parameters such as shape, size, diameter of core and shell, their chemical composition, and information on their strain fields is mandatory. Using synchrotron X-ray diffraction studies and finite element simulations, we determined the chemical composition, dimensions, and strain distribution for series of InAs/InAsP core-shell wires grown on Si(111) with systematically varied growth parameters. In particular we detect initiation of plastic relaxation of these structures with increasing shell thickness and/or increasing phosphorus content. We establish a phase diagram, defining the region of parameters leading to pseudomorphic nanowire growth. This is important to avoid extended defects which are detrimental for their electronic properties.
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
May
pubmed:issn
1530-6992
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
9
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1877-82
pubmed:year
2009
pubmed:articleTitle
Structural investigations of core-shell nanowires using grazing incidence X-ray diffraction.
pubmed:affiliation
Institut für Halbleiter- and Festkörperphysik, Johannes Kepler Universität Linz, Altenbergerstrabetae 69, 4040 Linz, Austria. mario.keplinger@jku.at
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't