Controlled Redox and Electrical Properties in Polyheterocycles
Abstract
Electrochromic polymers may prove especially important for a number of Air Force applications including chameleon coatings, informational displays, IR and microwave attenuation, and dialed tint windows. We have developed a new family of conjugated, redox active, polymers with controllable electronic band gaps that range from 1.1 eV to 4.0 eV, thus spanning from the NIR, through the entire visible spectrum, and into the UV. Studies of electrochromic polymers have been enhanced by the development of an electrochemical in-situ coloration efficiency method. Increasing the electron-rich character of the dioxyheterocycles, we have studied a new family of poly(3,4-alkylenedioxypyrroles) (PXDOPs). Electrochromism and ion transport studies of the PXDOPs show these polymers to switch at extremely low potentials and offer electrochromic properties not accessible with the PEDOT family of polymers. Donor-acceptor methodology has been used to prepare new materials which can be both p- and n-type doped with added benefit of being three color state electrochromics.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 14, 2000
- Accession Number
- ADA384310
Entities
People
- John R. Reynolds
Organizations
- University of Florida