title: Electropolymerized highly photoconductive thin films of cyclopalladated and cycloplatinated complexes.
abstract: The complete characterization of novel electropolymerizable organometallic complexes is presented. These are newly synthesized cyclometalated complexes of general formula (PPy)M(O ∧ N)(n) (H(PPy) = 2-phenylpyridine, M = Pd(II) or Pt(II), H(O ∧ N)(n) = Schiff base). Polymeric thin films have been obtained from these complexes by electropolymerization of the triphenylamino group grafted onto the H(O ∧ N)(n) ancillary ligand. The redox behavior and the photoconductivity of both of the monomers (PPy)M(O ∧ N)(n) and the electropolymerized species have been investigated. The polymeric films of (PPy)M(O ∧ N)(n) have shown a very significant enhancement of photoconductivity when compared to their monomeric amorphous counterparts. The high stability of the obtained films strongly suggests that electropolymerization of cyclometalated complexes represents a viable deposition technique of quality thin films with improved photoconduction properties, hence opening the door to a new class of materials with suitable properties for optoelectronic applications.
authors.affiliation: Centro di Eccelenza CEMIF.CAL, LASCAMM CR-INSTM, Unità INSTM della Calabria , I-87036 Rende, CS, Italy.
authors.forename: Andreea
authors.initials: A
authors.lastname: Ionescu
authors.forename: Raffaella
authors.initials: R
authors.lastname: Lento
authors.forename: Teresa F
authors.initials: TF
authors.lastname: Mastropietro
authors.forename: Iolinda
authors.initials: I
authors.lastname: Aiello
authors.forename: Roberto
authors.initials: R
authors.lastname: Termine
authors.forename: Attilio
authors.initials: A
authors.lastname: Golemme
authors.forename: Mauro
authors.initials: M
authors.lastname: Ghedini
authors.forename: Nathalie
authors.initials: N
authors.lastname: Bellec
authors.forename: Elena
authors.initials: E
authors.lastname: Pini
authors.forename: Isabella
authors.initials: I
authors.lastname: Rimoldi
authors.forename: Nicolas
authors.initials: N
authors.lastname: Godbert
keywords: electropolymerization; palladium(II) complexes; photoconductivity