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Work Function Maps and Surface Topography Characterization of Nitroaromatic-Ended Dendron Films on Graphite

Published online by Cambridge University Press:  28 October 2013

Eliana D. Farías ,
Verónica Brunetti ,
Julieta I. Paez ,
Miriam C. Strumia ,
Mario C.G. Passeggi Jr.  and
Julio Ferrón
Eliana D. Farías
Affiliation:
Departamento de Fisicoquímica (INFIQC-CONICET), Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, X5000HUA, Argentina
Verónica Brunetti*
Affiliation:
Departamento de Fisicoquímica (INFIQC-CONICET), Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, X5000HUA, Argentina
Julieta I. Paez
Affiliation:
Departamento de Química Orgánica (IMBIV-CONICET), Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, X5000HUA, Argentina
Miriam C. Strumia
Affiliation:
Departamento de Química Orgánica (IMBIV-CONICET), Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, X5000HUA, Argentina
Mario C.G. Passeggi Jr.
Affiliation:
Laboratorio de Superficies e Interfaces (IFIS Litoral, CONICET-UNL), Facultad de Ingeniería Química, Universidad Nacional del Litoral, Santa Fe, S3000GLN, Argentina Departamento de Materiales, Facultad de Ingeniería Química, Universidad Nacional del Litoral, Santa Fe, S3000AOM, Argentina
Julio Ferrón
Affiliation:
Laboratorio de Superficies e Interfaces (IFIS Litoral, CONICET-UNL), Facultad de Ingeniería Química, Universidad Nacional del Litoral, Santa Fe, S3000GLN, Argentina Departamento de Materiales, Facultad de Ingeniería Química, Universidad Nacional del Litoral, Santa Fe, S3000AOM, Argentina
*
*Corresponding author. E-mail: [email protected]
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Abstract

Surface topography and work function maps were simultaneously obtained for carbon surfaces modified by a dendritic molecule: 3,5-Bis (3,5-dinitrobenzoylamino) benzoic acid. The dendrons were spontaneously assembled onto highly ordered pyrolytic graphite samples, exhibiting an increase in the surface potential. This fact is consistent with the incorporation of an electron-acceptor functional group that remains electroactive on the surface.

Keywords

dendronself-assemblyKelvin probe force microscopyatomic force microscopywork function
Type
Materials Applications
Information
Microscopy and Microanalysis , Volume 20 , Issue 1 , February 2014 , pp. 61 - 65
Copyright
Copyright © Microscopy Society of America 2014 

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