Show simple item record

dc.contributor.authorMiranda, P. B.
dc.contributor.authorSantos, L. F.
dc.contributor.authorReis, F. T.
dc.contributor.authorScalvi, LVA
dc.date.accessioned2014-05-20T15:21:43Z
dc.date.available2014-05-20T15:21:43Z
dc.date.issued2005-09-22
dc.identifierhttp://dx.doi.org/10.1016/j.synthmet.2005.07.023
dc.identifier.citationSynthetic Metals. Lausanne: Elsevier B.V. Sa, v. 154, n. 1-3, p. 77-80, 2005.
dc.identifier.issn0379-6779
dc.identifier.urihttp://hdl.handle.net/11449/32840
dc.description.abstractWe have obtained the photoconductivity (PC) excitation spectrum for a stretch-oriented poly(paraphenylene vinylene) film over a wide spectral range (up to 5 eV). The measurements were performed in the surface cell configuration with the electric field parallel or perpendicular to the stretch direction. Although the sample had a stretch ratio of similar to 4, the dark conductivity and the steady-state photoconductivity were both about 40 and 20 times higher with the electric field parallel to the average chain direction, respectively. However, the shape of the PC excitation spectrum was independent of field direction and did not show a significant rise in the ultraviolet, as is usually observed for measurements in the photodiode configuration. The implications of these results to the charge photogeneration mechanism in conjugated polymers are discussed.en
dc.format.extent77-80
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofSynthetic Metals
dc.sourceWeb of Science
dc.subjectphotoconductivitypt
dc.subjectpoly(phenylene vinylene) and derivativespt
dc.subjectsemiconducting filmspt
dc.titlePhotoconductivity excitation spectrum for stretch-oriented PPVen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.description.affiliationUniv São Paulo, Inst Fis Sao Carlos, BR-13560970 Sao Carlos, SP, Brazil
dc.description.affiliationUniv Estadual Paulista, Fac Ciências, Dept Fis, BR-17015970 Bauru, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Fac Ciências, Dept Fis, BR-17015970 Bauru, SP, Brazil
dc.identifier.doi10.1016/j.synthmet.2005.07.023
dc.identifier.wosWOS:000232743400021
dc.rights.accessRightsAcesso restrito
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências, Baurupt
dc.identifier.lattes7730719476451232
unesp.author.lattes7730719476451232
unesp.author.orcid0000-0001-5762-6424[4]
unesp.author.orcid0000-0001-7376-2717[2]
unesp.author.orcid0000-0002-2890-0268[1]
dc.relation.ispartofjcr2.526
dc.relation.ispartofsjr0,672
Localize o texto completo

Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record