Molecular Engineering and Measurements To Test Hypothesized Mechanisms in Single Molecule Conductance Switching
Six customized phenylene-ethynylene-based oligomers have been studied for their electronic properties using scanning tunneling microscopy to test hypothesized mechanisms of stochastic conductance switching. Previously suggested mechanisms include functional group reduction, functional group rotation...
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| Veröffentlicht in: | Journal of the American Chemical Society 2006-02, Vol.128 (6), p.1959-1967 |
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| Hauptverfasser: | , , , , , , , , , |
| Format: | Artikel |
| Sprache: | eng |
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| container_end_page | 1967 |
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| container_issue | 6 |
| container_start_page | 1959 |
| container_title | Journal of the American Chemical Society |
| container_volume | 128 |
| creator | Moore, Amanda M Dameron, Arrelaine A Mantooth, Brent A Smith, Rachel K Fuchs, Daniel J Ciszek, Jacob W Maya, Francisco Yao, Yuxing Tour, James M Weiss, Paul S |
| description | Six customized phenylene-ethynylene-based oligomers have been studied for their electronic properties using scanning tunneling microscopy to test hypothesized mechanisms of stochastic conductance switching. Previously suggested mechanisms include functional group reduction, functional group rotation, backbone ring rotation, neighboring molecule interactions, bond fluctuations, and hybridization changes. Here, we test these hypotheses experimentally by varying the molecular designs of the switches; the ability of the molecules to switch via each hypothetical mechanism is selectively engineered into or out of each molecule. We conclude that hybridization changes at the molecule−surface interface are responsible for the switching we observe. |
| doi_str_mv | 10.1021/ja055761m |
| format | Article |
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Previously suggested mechanisms include functional group reduction, functional group rotation, backbone ring rotation, neighboring molecule interactions, bond fluctuations, and hybridization changes. Here, we test these hypotheses experimentally by varying the molecular designs of the switches; the ability of the molecules to switch via each hypothetical mechanism is selectively engineered into or out of each molecule. We conclude that hybridization changes at the molecule−surface interface are responsible for the switching we observe.</description><identifier>ISSN: 0002-7863</identifier><identifier>EISSN: 1520-5126</identifier><identifier>DOI: 10.1021/ja055761m</identifier><identifier>PMID: 16464097</identifier><identifier>CODEN: JACSAT</identifier><language>eng</language><publisher>Washington, DC: American Chemical Society</publisher><subject>Applied sciences ; Atomic and molecular physics ; Barrier heights (internal rotation, inversion, rotational isomerism, conformational dynamics) ; Electronics ; Exact sciences and technology ; Molecular electronics, nanoelectronics ; Molecular properties and interactions with photons ; Physics ; Properties of molecules and molecular ions ; Semiconductor electronics. Microelectronics. Optoelectronics. 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Am. Chem. Soc</addtitle><description>Six customized phenylene-ethynylene-based oligomers have been studied for their electronic properties using scanning tunneling microscopy to test hypothesized mechanisms of stochastic conductance switching. Previously suggested mechanisms include functional group reduction, functional group rotation, backbone ring rotation, neighboring molecule interactions, bond fluctuations, and hybridization changes. Here, we test these hypotheses experimentally by varying the molecular designs of the switches; the ability of the molecules to switch via each hypothetical mechanism is selectively engineered into or out of each molecule. We conclude that hybridization changes at the molecule−surface interface are responsible for the switching we observe.</description><subject>Applied sciences</subject><subject>Atomic and molecular physics</subject><subject>Barrier heights (internal rotation, inversion, rotational isomerism, conformational dynamics)</subject><subject>Electronics</subject><subject>Exact sciences and technology</subject><subject>Molecular electronics, nanoelectronics</subject><subject>Molecular properties and interactions with photons</subject><subject>Physics</subject><subject>Properties of molecules and molecular ions</subject><subject>Semiconductor electronics. Microelectronics. Optoelectronics. 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Solid state devices</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Moore, Amanda M</creatorcontrib><creatorcontrib>Dameron, Arrelaine A</creatorcontrib><creatorcontrib>Mantooth, Brent A</creatorcontrib><creatorcontrib>Smith, Rachel K</creatorcontrib><creatorcontrib>Fuchs, Daniel J</creatorcontrib><creatorcontrib>Ciszek, Jacob W</creatorcontrib><creatorcontrib>Maya, Francisco</creatorcontrib><creatorcontrib>Yao, Yuxing</creatorcontrib><creatorcontrib>Tour, James M</creatorcontrib><creatorcontrib>Weiss, Paul S</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of the American Chemical Society</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Moore, Amanda M</au><au>Dameron, Arrelaine A</au><au>Mantooth, Brent A</au><au>Smith, Rachel K</au><au>Fuchs, Daniel J</au><au>Ciszek, Jacob W</au><au>Maya, Francisco</au><au>Yao, Yuxing</au><au>Tour, James M</au><au>Weiss, Paul S</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Molecular Engineering and Measurements To Test Hypothesized Mechanisms in Single Molecule Conductance Switching</atitle><jtitle>Journal of the American Chemical Society</jtitle><addtitle>J. Am. Chem. Soc</addtitle><date>2006-02-15</date><risdate>2006</risdate><volume>128</volume><issue>6</issue><spage>1959</spage><epage>1967</epage><pages>1959-1967</pages><issn>0002-7863</issn><eissn>1520-5126</eissn><coden>JACSAT</coden><abstract>Six customized phenylene-ethynylene-based oligomers have been studied for their electronic properties using scanning tunneling microscopy to test hypothesized mechanisms of stochastic conductance switching. Previously suggested mechanisms include functional group reduction, functional group rotation, backbone ring rotation, neighboring molecule interactions, bond fluctuations, and hybridization changes. Here, we test these hypotheses experimentally by varying the molecular designs of the switches; the ability of the molecules to switch via each hypothetical mechanism is selectively engineered into or out of each molecule. 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| subjects | Applied sciences Atomic and molecular physics Barrier heights (internal rotation, inversion, rotational isomerism, conformational dynamics) Electronics Exact sciences and technology Molecular electronics, nanoelectronics Molecular properties and interactions with photons Physics Properties of molecules and molecular ions Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices |
| title | Molecular Engineering and Measurements To Test Hypothesized Mechanisms in Single Molecule Conductance Switching |
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