A nonconjugated radical polymer glass with high electrical conductivity

Title
A nonconjugated radical polymer glass with high electrical conductivity
Authors
주용호Bryan Boudouris
Issue Date
2019-04
Publisher
2019년 한국고분자학회 춘계학술대회
Abstract
Solid-state conducting polymers usually have highly conjugated macromolecular backbones and require intentional doping in order to achieve high electrical conductivities. Conversely, single-component, charge-neutral macromolecules could be synthetically simpler and have improved processibility and ambient stability. We show that poly(4-glycidyloxy-2,2,6,6-tetramethylpiperidine-1-oxyl), a nonconjugated radical polymer with a subambient glass transition temperature, underwent rapid solid-state charge transfer reactions and had an electrical conductivity of up to 28 siemens per meter over channel lengths up to 0.6 micrometers. The charge transport through the radical polymer film was enabled with thermal annealing at 80°C, which allowed for the formation of a percolating network of open-shell sites in electronic communication with one another. The electrical conductivity was not enhanced by intentional doping, and thin films of this material showed high optical transparency.
URI
http://pubs.kist.re.kr/handle/201004/62250
ISSN
-
Appears in Collections:
KIST Publication > Conference Paper
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