Electrochromic conducting polymers: optical contrast characterization of chameleonic materials.
The optical characterization in the visible wavelength range was obtained for an electrochromic material, poly-3, 4-ethylenedioxy-thiophene (PEDOT), as a function of its redox charge density (charge consumed for the color change between its maximum and minimum absorbance states). The experimental procedure was kept very simple and all the information can be obtained from only one film, including the identification of the maximum achievable contrast for the material. Different films of the electrochromic material were tested in order to check the validity of the predicted values, showing excellent agreement.
Padilla
Javier
J
Center for Electrochemistry and Intelligent Materials, C/Carlos III s/n., Campus Alfonso XIII, Technical University of Cartagena, 30203, Spain. javier.padilla@upct.es
Otero
Toribio F
TF
D000818:Animals; D040761:Biomimetic Materials / Q000737:chemistry*; D003116:Color; D004553:Electric Conductivity; D004563:Electrochemistry / Q000379:methods*; D008116:Lizards / Q000502:physiology*; D008422:Materials Testing; D055095:Optics and Photonics; D012542:Scattering, Radiation; D012880:Skin Pigmentation / Q000502:physiology*