Thickness and roughness measurements in poly(o-methoxyaniline) layer-by-layer films using AFM

M. Raposo, R. F. M. Lobo, M. A. Pereira da Silva, R. M. Faria, O. N. Oliveira Jr.

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Citations (Scopus)

Abstract

The atomic force microscopy (AFM) is employed to monitor the buildup of layer-by-layer films of poly(o-methoxyaniline) (POMA) and poly(ethenesulfonic acid) (PVS) onto several substrates. Using the contact mode of an AFM, we produced a furrow on the film, which was made possible because the film material is less stiff than the substrate and the silicon tip. Film thickness could then be measured using the tapping mode. The thickness and adsorbed amount of POMA/PVS increase linearly after several bilayers have been deposited, while the roughness increases with the number of bilayers until reaching a saturation value. This behavior was attributed to the ability these polymers possess to aggregate, which was confirmed by an analysis of grain sizes.

Original languageEnglish
Title of host publication1999 10th International Symposium on Electrets
Subtitle of host publicationISE 10 Proceedings
EditorsA. A. Konsta, A. Vassilikou-Dova, K. Vartzeli-Nikaki
Place of PublicationNew Jersey
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages533-536
Number of pages4
ISBN (Print)0-7803-5025-1
DOIs
Publication statusPublished - 1999
Event10th International Symposium on Electrets (ISE 10) - Delphi, Greece
Duration: 22 Sept 199924 Sept 1999

Publication series

NameInternational Symposium on Electrets (ISI)
PublisherInstitute of Electrical and Electronics Engineers (IEEE)

Conference

Conference10th International Symposium on Electrets (ISE 10)
CityDelphi, Greece
Period22/09/9924/09/99

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