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Surface and Intrinsic Conduction Properties of Au-Catalyzed Si Nanowires
An original atomic force microscopy (AFM) method is used to probe surface conduction properties of Au-catalyzed (111) oriented Si nanowires (NWs) attached on the substrate on which they were grown. Drastically different transport regimes are observed upon tuning the electronic junction between the A...
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Published in: | Journal of physical chemistry. C 2012-03, Vol.116 (11), p.6601-6607 |
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container_issue | 11 |
container_start_page | 6601 |
container_title | Journal of physical chemistry. C |
container_volume | 116 |
creator | Borowik, Ł Florea, I Deresmes, D Ersen, O Hourlier, D Mélin, T |
description | An original atomic force microscopy (AFM) method is used to probe surface conduction properties of Au-catalyzed (111) oriented Si nanowires (NWs) attached on the substrate on which they were grown. Drastically different transport regimes are observed upon tuning the electronic junction between the AFM tip and NW (AFM tip work function and NW surface states) and temperature, which reveal the interplay between Schottky interface junctions, Au-mediated surface conduction along the NW sidewalls, and conduction through NWs. The method is applied to extract the intrinsic resistance of nominally undoped NWs when removed from surface Au catalyst residues, and provides evidence for transport through Si NWs with effective residual doping as low as ≈1014–1015 cm–3. |
doi_str_mv | 10.1021/jp300816e |
format | article |
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C</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Borowik, Ł</au><au>Florea, I</au><au>Deresmes, D</au><au>Ersen, O</au><au>Hourlier, D</au><au>Mélin, T</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Surface and Intrinsic Conduction Properties of Au-Catalyzed Si Nanowires</atitle><jtitle>Journal of physical chemistry. C</jtitle><addtitle>J. Phys. Chem. C</addtitle><date>2012-03-22</date><risdate>2012</risdate><volume>116</volume><issue>11</issue><spage>6601</spage><epage>6607</epage><pages>6601-6607</pages><issn>1932-7447</issn><eissn>1932-7455</eissn><abstract>An original atomic force microscopy (AFM) method is used to probe surface conduction properties of Au-catalyzed (111) oriented Si nanowires (NWs) attached on the substrate on which they were grown. Drastically different transport regimes are observed upon tuning the electronic junction between the AFM tip and NW (AFM tip work function and NW surface states) and temperature, which reveal the interplay between Schottky interface junctions, Au-mediated surface conduction along the NW sidewalls, and conduction through NWs. The method is applied to extract the intrinsic resistance of nominally undoped NWs when removed from surface Au catalyst residues, and provides evidence for transport through Si NWs with effective residual doping as low as ≈1014–1015 cm–3.</abstract><cop>Columbus, OH</cop><pub>American Chemical Society</pub><doi>10.1021/jp300816e</doi><tpages>7</tpages><orcidid>https://orcid.org/0000-0002-4238-3842</orcidid><orcidid>https://orcid.org/0000-0002-4044-4429</orcidid><orcidid>https://orcid.org/0000-0002-1553-0915</orcidid></addata></record> |
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source | American Chemical Society:Jisc Collections:American Chemical Society Read & Publish Agreement 2022-2024 (Reading list) |
subjects | Chemical and Process Engineering Condensed matter: electronic structure, electrical, magnetic, and optical properties Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures Electronic transport in multilayers, nanoscale materials and structures Engineering Sciences Exact sciences and technology Nanocrystalline materials Physics Surface double layers, schottky barriers, and work functions |
title | Surface and Intrinsic Conduction Properties of Au-Catalyzed Si Nanowires |
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