Synthesis of polymeric thin films by electrochemical polymerization of 1-furfuryl pyrrole: Characterization and charge injection mechanism

The polymeric thin film was synthesized by electrochemical polymerization of 1-furfuryl pyrrole on indium tin oxide (ITO) substrates in aprotic organic media. The cyclic voltammograms and DFT calculations indicate that the electrochemical polymerization process would involve pyrrole rings, although...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Brovelli,Francisco, Rivas,Bernabé L, Bernède,Jean Christian
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2007
Materias:	Charge transport diodes electrochemistry ESCA/XPS thin films
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072007000100002
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0717-97072007000100002
record_format	dspace
spelling	oai:scielo:S0717-970720070001000022007-05-07Synthesis of polymeric thin films by electrochemical polymerization of 1-furfuryl pyrrole: Characterization and charge injection mechanismBrovelli,FranciscoRivas,Bernabé LBernède,Jean Christian Charge transport diodes electrochemistry ESCA/XPS thin films The polymeric thin film was synthesized by electrochemical polymerization of 1-furfuryl pyrrole on indium tin oxide (ITO) substrates in aprotic organic media. The cyclic voltammograms and DFT calculations indicate that the electrochemical polymerization process would involve pyrrole rings, although oxidation of the furane ring could also take place. The organic thin films were physicochemically characterized by scanning electron microscopy, electron probe microanalysis, and X-ray photoelectron spectroscopy. The surface morphology has shown that the polymer deposition process has high coverage efficiency. The polymeric layer is very thin with an approximate thickness of 150 nm. When the direct bias is applied to the device, the behaviour is ohmic at low voltage; but once an appropriate value is reached, the current begins to increase exponentially. The current-voltage (I-V) curves exhibit rectifying behaviour with a turn-on voltage at 0.70V. The ideality factor n values found are 9-15, indicating disagreement with the model of a standard Schottky contact.The charge injection mechanism in this device was attributed to the tunnelling effectinfo:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.52 n.1 20072007-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072007000100002en10.4067/S0717-97072007000100002
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Charge transport diodes electrochemistry ESCA/XPS thin films
spellingShingle	Charge transport diodes electrochemistry ESCA/XPS thin films Brovelli,Francisco Rivas,Bernabé L Bernède,Jean Christian Synthesis of polymeric thin films by electrochemical polymerization of 1-furfuryl pyrrole: Characterization and charge injection mechanism
description	The polymeric thin film was synthesized by electrochemical polymerization of 1-furfuryl pyrrole on indium tin oxide (ITO) substrates in aprotic organic media. The cyclic voltammograms and DFT calculations indicate that the electrochemical polymerization process would involve pyrrole rings, although oxidation of the furane ring could also take place. The organic thin films were physicochemically characterized by scanning electron microscopy, electron probe microanalysis, and X-ray photoelectron spectroscopy. The surface morphology has shown that the polymer deposition process has high coverage efficiency. The polymeric layer is very thin with an approximate thickness of 150 nm. When the direct bias is applied to the device, the behaviour is ohmic at low voltage; but once an appropriate value is reached, the current begins to increase exponentially. The current-voltage (I-V) curves exhibit rectifying behaviour with a turn-on voltage at 0.70V. The ideality factor n values found are 9-15, indicating disagreement with the model of a standard Schottky contact.The charge injection mechanism in this device was attributed to the tunnelling effect
author	Brovelli,Francisco Rivas,Bernabé L Bernède,Jean Christian
author_facet	Brovelli,Francisco Rivas,Bernabé L Bernède,Jean Christian
author_sort	Brovelli,Francisco
title	Synthesis of polymeric thin films by electrochemical polymerization of 1-furfuryl pyrrole: Characterization and charge injection mechanism
title_short	Synthesis of polymeric thin films by electrochemical polymerization of 1-furfuryl pyrrole: Characterization and charge injection mechanism
title_full	Synthesis of polymeric thin films by electrochemical polymerization of 1-furfuryl pyrrole: Characterization and charge injection mechanism
title_fullStr	Synthesis of polymeric thin films by electrochemical polymerization of 1-furfuryl pyrrole: Characterization and charge injection mechanism
title_full_unstemmed	Synthesis of polymeric thin films by electrochemical polymerization of 1-furfuryl pyrrole: Characterization and charge injection mechanism
title_sort	synthesis of polymeric thin films by electrochemical polymerization of 1-furfuryl pyrrole: characterization and charge injection mechanism
publisher	Sociedad Chilena de Química
publishDate	2007
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072007000100002
work_keys_str_mv	AT brovellifrancisco synthesisofpolymericthinfilmsbyelectrochemicalpolymerizationof1furfurylpyrrolecharacterizationandchargeinjectionmechanism AT rivasbernabel synthesisofpolymericthinfilmsbyelectrochemicalpolymerizationof1furfurylpyrrolecharacterizationandchargeinjectionmechanism AT bernedejeanchristian synthesisofpolymericthinfilmsbyelectrochemicalpolymerizationof1furfurylpyrrolecharacterizationandchargeinjectionmechanism
_version_	1718445368141676544

Synthesis of polymeric thin films by electrochemical polymerization of 1-furfuryl pyrrole: Characterization and charge injection mechanism

Ejemplares similares