Conductivity Switching in Polyheterocycles

Abstract

This work involved conjugated polymer (CP) chemistry to develop new lightweight, processable, and stable CPs with a high degreeof switch ability between insulating and conducting states. We synthesized and evaluated numerous electron-rich dioxythiophene(DOT) and thienothiophene (TT) polymers that incorporate both polar and non-polar side chains. This has allowed us to probe arange of properties including polarity effects, polymer/dopant interactions, solubility, and electrolyte compatibility and how theseinfluence switch ability and conductivity. In one synthesis we control biEDOT incorporation in ProDOT-based polymers (PE2) toyield materials with conductivities of 200 S/cm. Using branched oligoether side chains in PE2 structures, films with a higher averagesolid-state conductivity of 430 60 S/cm were obtained. Through collaborations we have incorporated our materials intoelectrochemical switches that can modulate frequencies in the RF and microwave range (UDelaware, Mirotznik), and into carbonpaper-based electrodes for flexible supercapacitors (NRL, Long and Sassin).

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Document Details

Document Type
Technical Report
Publication Date
Aug 03, 2021
Accession Number
AD1144507

Entities

People

  • John R. Reynolds

Organizations

  • Georgia Tech Research Corporation

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Carbonate Esters
  • Charge Carriers
  • Chemical Synthesis
  • Chemistry
  • Conductive Polymers
  • Conjugated Polymers
  • Dipole Antennas
  • Films
  • Frequency
  • Mass Spectrometry
  • Materials
  • Materials Science
  • Molecular Weight
  • Polymer Chemistry
  • Polymeric Films
  • Polymers
  • Spectra
  • Spectroscopy
  • Teamwork

Fields of Study

  • Materials science

Readers

  • Polymer Science and Technology
  • Solar Photovoltaics and Thermoelectric Devices.

Technology Areas

  • Microelectronics