Nucleation and growth mechanism of polycarbazole deposited by electrochemistry

Simple item page
dc.contributor.authorAbe, S. Yapi
dc.contributor.authorUgalde, Lastenia
dc.contributor.authordel Valle, M. Angelica
dc.contributor.authorTregouet, Yann
dc.contributor.authorBernede, J. Christian
dc.date.accessioned2024-01-10T13:15:39Z
dc.date.available2024-01-10T13:15:39Z
dc.date.issued2007
dc.description.abstractPolycarbazole (PCz) thin films have been deposited by electro-oxidation of carbazole in LiCIO, + anhydrous acetonitrile onto SnO2 coated glass substrates, by potentiostatic method and the nucleation and growth mechanism (NGM) were studied. The obtained current time transients (j-t) were fitted using a mathematical equation with three contributions: instantaneous nucleation with two-dimensional (IN2D) or three-dimensional (IN3D) growth, and also a progressive nucleation with three dimensional (PN3D) growth. At the beginning, the IN2D contribution is predominant but, quickly the IN3D processes become more important. At a deposition time t >= 17 s the IN3D corresponds to 80 % of the total current. The visualization by scanning electron microscopy of the surface morphology of the PCz films is in agreement with the NGM proposed by the mathematical method. The film covers very rapidly the SnO2 under layer related to the 2D process, even if some heterogeneities randomly distributed in the films, issued from the 3D processes, are also visible. After two minutes of deposition, the roughness of the whole surface of the films corroborates the 3D processes domination. Therefore, the information directly obtained from the (j-t) transients is a suitable and very useful tool to predict the working conditions in order to control the type of morphology of the film prepared by electropolymerization.
dc.format.extent6 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1590/S0103-50532007000300017
dc.identifier.eissn1678-4790
dc.identifier.issn0103-5053
dc.identifier.urihttps://doi.org/10.1590/S0103-50532007000300017
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/78519
dc.identifier.wosidWOS:000247722300016
dc.information.autorucQuímica;Del Valle M;S/I;54928
dc.information.autorucQuímica;Ugalde L;S/I;2297
dc.issue.numero3
dc.language.isoen
dc.nota.accesoSin adjunto
dc.pagina.final606
dc.pagina.inicio601
dc.publisherSOC BRASILEIRA QUIMICA
dc.revistaJOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY
dc.rightsregistro bibliográfico
dc.subjectpolycarbazole
dc.subjectelectropolymerization
dc.subjectnucleation and growth mechanisms
dc.subjectmorphology
dc.subjectMONOMER CONCENTRATION
dc.subjectTHIN-FILMS
dc.subjectELECTROLYTE
dc.subjectELECTRODEPOSITION
dc.subjectPOLYMERIZATION
dc.subjectSEM
dc.titleNucleation and growth mechanism of polycarbazole deposited by electrochemistry
dc.typeartículo
dc.volumen18
sipa.codpersvinculados54928
sipa.codpersvinculados2297
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Nucleation and growth mechanism of polycarbazole deposited by electrochemistry.pdf
Size:
2.96 KB
Format:
Adobe Portable Document Format
Description:
Download
Collections
Artículos de revistas