Source:http://linkedlifedata.com/resource/pubmed/id/19736975
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
9
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pubmed:dateCreated |
2009-9-9
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pubmed:abstractText |
We have used transient terahertz photoconductivity measurements to assess the efficacy of two-temperature growth and core-shell encapsulation techniques on the electronic properties of GaAs nanowires. We demonstrate that two-temperature growth of the GaAs core leads to an almost doubling in charge-carrier mobility and a tripling of carrier lifetime. In addition, overcoating the GaAs core with a larger-bandgap material is shown to reduce the density of surface traps by 82%, thereby enhancing the charge conductivity.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Sep
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pubmed:issn |
1530-6992
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pubmed:author | |
pubmed:issnType |
Electronic
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pubmed:volume |
9
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
3349-53
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pubmed:meshHeading |
pubmed-meshheading:19736975-Arsenicals,
pubmed-meshheading:19736975-Electric Conductivity,
pubmed-meshheading:19736975-Gallium,
pubmed-meshheading:19736975-Materials Testing,
pubmed-meshheading:19736975-Nanotechnology,
pubmed-meshheading:19736975-Nanowires,
pubmed-meshheading:19736975-Particle Size,
pubmed-meshheading:19736975-Photochemistry,
pubmed-meshheading:19736975-Surface Properties,
pubmed-meshheading:19736975-Temperature,
pubmed-meshheading:19736975-Terahertz Spectroscopy,
pubmed-meshheading:19736975-Time Factors
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pubmed:year |
2009
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pubmed:articleTitle |
Carrier lifetime and mobility enhancement in nearly defect-free core-shell nanowires measured using time-resolved terahertz spectroscopy.
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pubmed:affiliation |
Clarendon Laboratory, Department of Physics, University of Oxford, Oxford OX1 3PU, United Kingdom.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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