Sequential Cascade Doping of Conjugated-Polymer-Wrapped Carbon Nanotubes for Highly Electrically Conductive Platforms

To explore a highly conductive flexible platform, this study develops PIDF-BT@SWCNT by wrapping single-walled carbon nanotubes (SWCNTs) with a conjugated polymer, PIDF-BT, known for its effective doping properties. By evaluating the doping behaviors of various dopants on PIDF-BT, appropriate dopant...

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Bibliographic Details
Published in:Polymers 2024-07, Vol.16 (13), p.1884
Main Authors: Lee, Da Young, Choi, Da Eun, Ahn, Yejin, Kye, Hyojin, Kim, Min Seon, Kim, Bong-Gi
Format: Article
Language:English
Subjects:
Acids
Atomic structure
Conductivity
Dopants
Doping
Efficiency
Electrical properties
Electrical resistivity
Electrons
Energy
Mechanical properties
Nanotubes
Photoelectron spectroscopy
Photoelectrons
Polymers
Raman spectroscopy
Single wall carbon nanotubes
Spectrum analysis
Structure
X ray photoelectron spectroscopy
X-ray spectroscopy
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Summary:To explore a highly conductive flexible platform, this study develops PIDF-BT@SWCNT by wrapping single-walled carbon nanotubes (SWCNTs) with a conjugated polymer, PIDF-BT, known for its effective doping properties. By evaluating the doping behaviors of various dopants on PIDF-BT, appropriate dopant combinations for cascade doping are selected to improve the doping efficiency of PIDF-BT@SWCNT. Specifically, using F4TCNQ or F6TCNNQ as the first dopant, followed by AuCl as the second dopant, demonstrates remarkable doping efficiency, surpassing that of the individual dopants and yielding an exceptional electrical conductivity exceeding 6000 S/cm. Characterization using X-ray photoelectron spectroscopy and Raman spectroscopy elucidates the doping mechanism, revealing an increase in the proportion of electron-donating atoms and the ratio of quinoid structures upon F4TCNQ/AuCl cascade doping. These findings offer insights into optimizing dopant combinations for cascade doping, showcasing its advantages in enhancing doping efficiency and resulting electrical conductivity compared with single dopant processes.
ISSN:2073-4360
2073-4360
DOI:10.3390/polym16131884