Millisecond switching in solid state electrochromic polymer devices fabricated from ionic self-assembled multilayers

The electrochromic switching times of solid state conducting polymer devices fabricated by the ionic self-assembled multilayer method has been investigated. The devices were composed of bilayers of poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) and poly(allylamine hydrochloride) on indium tin oxide substrates. Devices fabricated from 40 bilayer thick films have coloration and decolaration switching times of 31 and 6ms, respectively, with low applied voltage (1.4V) for an active area of 0.6cm2. The switching times have been shown to decrease with the active area of the electrochromic device suggesting that even faster electrochromic switching times are possible for devices with smaller areas.

[1]  Charles Brands,et al.  Efficient, thermally stable, second order nonlinear optical response in organic hybrid covalent/ionic self-assembled films. , 2006, Langmuir : the ACS journal of surfaces and colloids.

[2]  Jeanne M. Robinson,et al.  Film formation, surface character, and relative density for electrochromic PEI/(PSS:PEDOT) multilayered thin films , 2005 .

[3]  Richard O. Claus,et al.  Thickness dependence of second-harmonic generation in thin films fabricated from ionically self-assembled monolayers , 1999 .

[4]  J. Reynolds,et al.  Conducting Poly(3,4-alkylenedioxythiophene) Derivatives as Fast Electrochromics with High-Contrast Ratios , 1998 .

[5]  K. Schanze,et al.  Photovoltaic cells based on sequentially adsorbed multilayers of conjugated poly(p-phenylene ethynylene)s and a water-soluble fullerene derivative. , 2005, Langmuir : the ACS journal of surfaces and colloids.

[6]  Seung Il Cho,et al.  Nanotube‐Based Ultrafast Electrochromic Display , 2005 .

[7]  Gero Decher,et al.  Fuzzy Nanoassemblies: Toward Layered Polymeric Multicomposites , 1997 .

[8]  H. Mattoussi,et al.  Photovoltaic heterostructure devices made of sequentially adsorbed poly(phenylene vinylene) and functionalized C60 , 2000 .

[9]  B. Hsieh,et al.  Enhancement of light emitting diodes based on self‐assembled heterostructures of poly(p‐phenylene vinylene) , 1996 .

[10]  José A. Pomposo,et al.  A simplified all-polymer flexible electrochromic device , 2004 .

[11]  P. Hammond.  Form and Function in Multilayer Assembly: New Applications at the Nanoscale , 2004 .

[12]  Dean M. DeLongchamp,et al.  Layer-by-layer assembly of PEDOT/polyaniline electrochromic devices , 2001 .

[13]  S. Carter,et al.  Solid-state electrochromic devices based on poly (phenylene vinylene) polymers , 2005 .

[14]  P. Hammond,et al.  High-contrast electrochromism from layer-by-layer polymer films , 2003 .

[15]  Siddharth Ramachandran,et al.  Highly sensitive optical response of optical fiber long period gratings to nanometer-thick ionic self-assembled multilayers , 2005 .