Near-IR Electrochromism in Electrodeposited Thin Films of Cyclometalated Complexes

被引：23

作者：

Ionescu, Andreea ^{[1
]}

Aiello, Iolinda ^{[1
]}

La Deda, Massimo ^{[1
,2
]}

Crispini, Alessandra ^{[1
,2
]}

Ghedini, Mauro ^{[1
,2
]}

De Santo, Maria Penelope ^{[2
,3
]}

Godbert, Nicolas ^{[1
]}

机构：

[1] Univ Calabria, LASCAMM CR INSTM, Ctr Eccellenza CEMIF CAL,Unita INSTM Calabria, Dipartimento Chim & Tecnol Chim,MAT INLAB Lab Mat, I-87036 Arcavacata Di Rende, Italy

[2] Univ Calabria, CNR Nanotec, Ist Nanotecnol UOS Cosenza, I-87036 Cosenza, Italy

[3] Univ Calabria, Dipartimento Fis, I-87036 Cosenza, Italy

来源：

ACS APPLIED MATERIALS & INTERFACES | 2016年 / 8卷 / 19期

关键词：

cyclometalated metallopolymers; Pd(II) complexes; Pt(II) complexes; Pt-Pt interactions; electropolymerization and electrochromism; ELECTROPOLYMERIZED FILMS; PLATINUM(II) COMPLEXES; CYCLOPLATINATED COMPLEXES; METALLOPOLYMERIC FILMS; PT INTERACTIONS; SOLAR-CELLS; PI-PI; POLYMERS; TRIPHENYLAMINE; DEVICES;

D O I：

10.1021/acsami.6b01167

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Homogeneous thin films of controlled thickness obtained from cyclometalated complexes of general formula [(C boolean AND N)M(O boolean AND N)], where M = Pd(II) or Pt(II), H(C boolean AND N) = 2-phenylpyridine and, respectively, 2-thienylpyridine and H(O boolean AND 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 complexes to promote the 3D growth. Furthermore, a complete electrodeposited films showing near-IR absorption in the oxidized state, of the metal center, with a higher tendency of the Pt spectroelectrochernical 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.

引用

页码：12272 / 12281

页数：10

共 61 条

[21] Selection and discovery of polymorphs of platinum complexes facilitated by polymer-induced heteronucleation [J].