Premium
Specroelectrochemical, switching kinetics, and chronoamperometric studies of dibenzyl derivative of poly(3,4‐propylenedioxythiophene) thin‐film‐based electrochromic device
Author(s) -
Lakshmanan Raja,
Raja Palani Prabhu,
Shivaprakash Narayanapura Channegowda,
Nair Sindhu Sukumaran
Publication year - 2014
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.40717
Subject(s) - electrochromism , chronoamperometry , thin film , materials science , electrochromic devices , substrate (aquarium) , kinetics , electrode , electrochemistry , derivative (finance) , cyclic voltammetry , layer (electronics) , analytical chemistry (journal) , chemical engineering , nanotechnology , chemistry , organic chemistry , oceanography , physics , quantum mechanics , engineering , geology , financial economics , economics
The dibenzyl derivative of poly(3,4‐propylenedioxythiophene) (PProDOT‐Bz 2 ) thin film is deposited onto ITO‐coated glass substrate by electropolymerization technique. The electropolymerization of ProDOT‐Bz 2 is carried out by a three‐electrode electrochemical cell. The cyclic voltammogram shows the redox properties of electrochemically prepared films deposited at different scan rates. The thin films prepared were characterized for its morphological properties to study the homogeniety. Classic six‐layer structure of PProDOT‐Bz 2 electrochromic device using this material was fabricated and reported for the first and its characterizations such as spectroelectrochemical, switching kinetics, and chronoamperometric studies are performed. The color contrast of the thin film and the device achieved are 64 and 40%, respectively, at λ max (628 nm). The switching time is recorded and the observed values are 5 s from the coloring state to the bleaching state and vice versa. The chronoamperometry shows that the device performed up to 400 cycles, and it is capable of working up to 35 cycles without any degradation. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014 , 131 , 40717.