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The electronic behavior of poly(3-octylthiophene) electrochemically synthesized onto Au substrate

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dc.creator Valaski Rogério
dc.creator Moreira Liadáurea M.
dc.creator Micaroni Liliana
dc.creator Hümmelgen Ivo A.
dc.date 2003
dc.date.accessioned 2013-06-01T10:23:33Z
dc.date.available 2013-06-01T10:23:33Z
dc.date.issued 2013-06-01
dc.identifier http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332003000200043
dc.identifier http://www.doaj.org/doaj?func=openurl&genre=article&issn=01039733&date=2003&volume=33&issue=2&spage=392
dc.identifier.uri http://koha.mediu.edu.my:8181/jspui/handle/123456789/8159
dc.description We investigate the electronic characteristics and the absorption spectra of poly(3-octylthiophene), POT, films grown by electrochemical methods onto Au substrates. We discuss the results considering the morphological factor. POT films thickness can be controlled by current density in the electropolymerization process. The film roughness depends on the thickness, being about 12% of film thickness. The samples for electrical measurements were made in sandwich structure, Au/POT/metal (metal: Ni, Al). Analyzing current-voltage data we were able to estimate the positive charge carrier mobility (5 x 10-4 cm² V-1 s-1) and the potential barrier height in the metal/polymer interfaces (0.1 eV for Au/POT and Ni/POT and 0.85 eV for Al/POT).
dc.publisher Sociedade Brasileira de Física
dc.source Brazilian Journal of Physics
dc.title The electronic behavior of poly(3-octylthiophene) electrochemically synthesized onto Au substrate


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