Tuning the morphological and electrical properties of graphite surface by self-assembled viologen nanostructures
•A robust functionalization of graphitic surface by self-assembly of reduced viologens•Functionalized surfaces were characterized by Scanning Tunneling Microscopy, Atomic Force Microscopy and Voltammetry•π-π interactions control the stacked configuration•The local contact potential difference was sc...
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| Veröffentlicht in: | Surface science 2022-09, Vol.723, p.122122, Article 122122 |
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| creator | Huynh, Thi Mien Trung Nguyen, Le Tuan Phan, Thanh Hai |
| description | •A robust functionalization of graphitic surface by self-assembly of reduced viologens•Functionalized surfaces were characterized by Scanning Tunneling Microscopy, Atomic Force Microscopy and Voltammetry•π-π interactions control the stacked configuration•The local contact potential difference was scanned by Kelvin Probe Force Microscopy
In this contribution, a combination of cyclic voltammetry (CV), atomic force microscopy (AFM), electrochemical scanning tunneling microscopy (EC-STM) and Kelvin probe force microscopy (KPFM) is used to characterize the electrochemical, structural and electronic properties of the dibenzyl viologen (DBV) molecules based adlayers electrochemically deposited on highly oriented pyrolytic graphite (HOPG) surface. The adlayer formations on HOPG are dependent on its redox states in-situ modulated by the electrode potential and the used concentration. Relying on the intrinsic solubility of individual reduced molecules one enables permanent modulation the modification degree of HOPG surface. In addition, at the potentials where HOPG surface is merely modified by DBV0 molecules, the electrical properties of HOPG surface can also be modulated by various DBV2+ concentrations as the variable.
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| doi_str_mv | 10.1016/j.susc.2022.122122 |
| format | Article |
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In this contribution, a combination of cyclic voltammetry (CV), atomic force microscopy (AFM), electrochemical scanning tunneling microscopy (EC-STM) and Kelvin probe force microscopy (KPFM) is used to characterize the electrochemical, structural and electronic properties of the dibenzyl viologen (DBV) molecules based adlayers electrochemically deposited on highly oriented pyrolytic graphite (HOPG) surface. The adlayer formations on HOPG are dependent on its redox states in-situ modulated by the electrode potential and the used concentration. Relying on the intrinsic solubility of individual reduced molecules one enables permanent modulation the modification degree of HOPG surface. In addition, at the potentials where HOPG surface is merely modified by DBV0 molecules, the electrical properties of HOPG surface can also be modulated by various DBV2+ concentrations as the variable.
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In this contribution, a combination of cyclic voltammetry (CV), atomic force microscopy (AFM), electrochemical scanning tunneling microscopy (EC-STM) and Kelvin probe force microscopy (KPFM) is used to characterize the electrochemical, structural and electronic properties of the dibenzyl viologen (DBV) molecules based adlayers electrochemically deposited on highly oriented pyrolytic graphite (HOPG) surface. The adlayer formations on HOPG are dependent on its redox states in-situ modulated by the electrode potential and the used concentration. Relying on the intrinsic solubility of individual reduced molecules one enables permanent modulation the modification degree of HOPG surface. In addition, at the potentials where HOPG surface is merely modified by DBV0 molecules, the electrical properties of HOPG surface can also be modulated by various DBV2+ concentrations as the variable.
[Display omitted]</description><subject>Electrical properties</subject><subject>Electrochemical deposition</subject><subject>HOPG</subject><subject>Modification</subject><subject>Pyrolytic graphite</subject><subject>Scanning tunneling microscopy</subject><subject>Self-assembly</subject><subject>Viologen adlayer</subject><issn>0039-6028</issn><issn>1879-2758</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNp9kMtqwzAQRUVpoWnaH-hK0LVTvWLL0E0JfUGgm3QtZHmUyDiWK8mB_H3tuusOA8PAvTOXg9A9JStKaP7YrOIQzYoRxlaUsbEv0ILKosxYsZaXaEEIL7OcMHmNbmJsyFiiXC9Qvxs61-1xOgA--tAffOv3zugW667G0IJJ4Xftg-8hJAcRe4v3QfcHlwDHIVhtAFdnHKG1mY4RjlULNT656RR0uNOdjykMJg0B4i26srqNcPc3l-jr9WW3ec-2n28fm-dtZjiTKaNWSCvAlpXRnFquCyKKkjAupNGMUNA0t9zmpgLBBehaS1sbWuaCF7woNV-ih_nuGPx7gJhU44fQjS8VK4gs5JpJPqrYrDLBxxjAqj64ow5nRYmayKpGTWTVRFbNZEfT02yCMf_JQVDROOgM1C6MvFTt3X_2H_9MhK4</recordid><startdate>202209</startdate><enddate>202209</enddate><creator>Huynh, Thi Mien Trung</creator><creator>Nguyen, Le Tuan</creator><creator>Phan, Thanh Hai</creator><general>Elsevier B.V</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0002-6883-7849</orcidid></search><sort><creationdate>202209</creationdate><title>Tuning the morphological and electrical properties of graphite surface by self-assembled viologen nanostructures</title><author>Huynh, Thi Mien Trung ; Nguyen, Le Tuan ; Phan, Thanh Hai</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c328t-1f48f4ef9bca31f3a7047902348ca201ea16f3f6cbe434eada8fdc196437379a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Electrical properties</topic><topic>Electrochemical deposition</topic><topic>HOPG</topic><topic>Modification</topic><topic>Pyrolytic graphite</topic><topic>Scanning tunneling microscopy</topic><topic>Self-assembly</topic><topic>Viologen adlayer</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Huynh, Thi Mien Trung</creatorcontrib><creatorcontrib>Nguyen, Le Tuan</creatorcontrib><creatorcontrib>Phan, Thanh Hai</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Surface science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Huynh, Thi Mien Trung</au><au>Nguyen, Le Tuan</au><au>Phan, Thanh Hai</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Tuning the morphological and electrical properties of graphite surface by self-assembled viologen nanostructures</atitle><jtitle>Surface science</jtitle><date>2022-09</date><risdate>2022</risdate><volume>723</volume><spage>122122</spage><pages>122122-</pages><artnum>122122</artnum><issn>0039-6028</issn><eissn>1879-2758</eissn><abstract>•A robust functionalization of graphitic surface by self-assembly of reduced viologens•Functionalized surfaces were characterized by Scanning Tunneling Microscopy, Atomic Force Microscopy and Voltammetry•π-π interactions control the stacked configuration•The local contact potential difference was scanned by Kelvin Probe Force Microscopy
In this contribution, a combination of cyclic voltammetry (CV), atomic force microscopy (AFM), electrochemical scanning tunneling microscopy (EC-STM) and Kelvin probe force microscopy (KPFM) is used to characterize the electrochemical, structural and electronic properties of the dibenzyl viologen (DBV) molecules based adlayers electrochemically deposited on highly oriented pyrolytic graphite (HOPG) surface. The adlayer formations on HOPG are dependent on its redox states in-situ modulated by the electrode potential and the used concentration. Relying on the intrinsic solubility of individual reduced molecules one enables permanent modulation the modification degree of HOPG surface. In addition, at the potentials where HOPG surface is merely modified by DBV0 molecules, the electrical properties of HOPG surface can also be modulated by various DBV2+ concentrations as the variable.
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| ispartof | Surface science, 2022-09, Vol.723, p.122122, Article 122122 |
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| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Electrical properties Electrochemical deposition HOPG Modification Pyrolytic graphite Scanning tunneling microscopy Self-assembly Viologen adlayer |
| title | Tuning the morphological and electrical properties of graphite surface by self-assembled viologen nanostructures |
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