Preparation of Highly Conductive Gold−Poly(3,4-ethylenedioxythiophene) Nanocables and
Their Conversion to Poly(3,4-ethylenedioxythiophene) Nanotubes
Gewu Lu
Chun Li
Jiaoyan Shen
Zhaojia Chen
Gaoquan Shi
10.1021/jp070387t.s001
https://acs.figshare.com/articles/journal_contribution/Preparation_of_Highly_Conductive_Gold_Poly_3_4_ethylenedioxythiophene_Nanocables_and_Their_Conversion_to_Poly_3_4_ethylenedioxythiophene_Nanotubes/3010978
Gold<sup>_</sup>poly(3,4-ethylenedioxythiophene) (Au-PEDOT) nanocables were synthesized at room temperature by
one-step interfacial reaction of EDOT (in organic phase) and HAuCl<sub>4</sub> (in aqueous phase) without the assistance
of a surfactant, a template, or a stabilizer. The coaxial nanocables have lengths of several micrometers, outer
diameters around 50 nm, and central cores around 30 nm. The room-temperature conductivity of the as-prepared nanocable pallet was measured to be about 770 S cm<sup>-1</sup>, and it changed from negative to positive
temperature coefficient of resistivity (TCR) at around 50 K. The single Au-PEDOT nanocable exhibits as a
semiconductor in the temperature range of 100−300 K with room-temperature conductivity as high as 2.3 ×
10<sup>3</sup> S cm<sup>-1</sup>. Dissolution of the Au component from the nanocables using saturated I<sub>2</sub> solution resulted in the
formation of hollow PEDOT nanotubes with diameters around 50 nm, and gold nanowires were also produced
by oxygen plasma decomposition of the PEDOT skins of the nanocables.
2007-04-26 00:00:00
TCR
nanocable
EDOT
oxygen plasma decomposition
PEDOT
50 nm