Near-IR Electrochromism in Electrodeposited Thin Films of Cyclometalated Complexes.
ACS Appl Mater Interfaces
; 8(19): 12272-81, 2016 05 18.
Article
em En
| MEDLINE
| ID: mdl-27115248
ABSTRACT
Homogeneous thin films of controlled thickness obtained from cyclometalated complexes of general formula [(C(â§)N)M(O(â§)N)], where M = Pd(II) or Pt(II), H(C(â§)N) = 2-phenylpyridine and, respectively, 2-thienylpyridine and H(O(â§)N) = a triphenylamine functionalized Schiff base, have been deposited by oxidative electropolymerization. The films have been electrochemically and morphologically characterized. The metallopolymeric thin films present stable reversible redox behavior and typical cauliflower-like textures in agreement with a nucleation-growth electropolymerization mechanism. However, the film growth is greatly influenced by the nature of the metal center, with a higher tendency of the Pt complexes to promote the 3D growth. Furthermore, a complete spectroelectrochemical study has been performed on electrodeposited films showing near-IR absorption in the oxidized state, high contrast ratios (up to 65%) and low response times.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
ACS Appl Mater Interfaces
Assunto da revista:
BIOTECNOLOGIA
/
ENGENHARIA BIOMEDICA
Ano de publicação:
2016
Tipo de documento:
Article
País de afiliação:
Itália