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Accession Number
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DE2012-1051735
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Title
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Electrothermal Phenomena in Zinc Oxide Nanowires and Contacts.
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Publication Date
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Sep 2012
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Media Count
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28p
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Personal Author
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K. E. Goodson S. A. LeBlanc
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Abstract
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Heat generation along nanowires and near their electrical contacts influences the feasibility of energy conversion devices. This work presents ZnO nanowire electrical resistivity data and models electrothermal transport accounting for heat generation at metal-semiconductor contacts, axial thermal conduction, and substrate heat losses. The current-voltage relationships and electron microscopy indicate sample degradation is caused by the interplay of heat generation at contacts and within the nanowire volume. The model is used to interpret literature data for Si, GaN, and ZnO nanowires. This work assists with electrothermal nanowire measurements and highlights practical implications of utilizing solution-synthesized nanowires. The work was conducted at Stanford University from 2010-2 through a Sandia Campus Executive Fellowship awarded to PhD candidate Saniya LeBlanc.
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Keywords
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Electrical resistivity
Energy conversion devices
Heat generation
Metals
Nanowires
Semiconductors
Thermal conduction
Zinc oxides
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Source Agency
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Technical Information Center Oak Ridge Tennessee
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NTIS Subject Category
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49 - Electrotechnology
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Corporate Author
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Stanford Univ., CA. Dept. of Mechanical Engineering.
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Document Type
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Technical report
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Title Note
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N/A
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NTIS Issue Number
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1306
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Contract Number
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N/A
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