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

被引:0
|
作者
Lee, Da Young [1 ]
Choi, Da Eun [2 ]
Ahn, Yejin [2 ]
Kye, Hyojin [2 ]
Kim, Min Seon [2 ]
Kim, Bong-Gi [1 ,2 ]
机构
[1] Konkuk Univ, Dept Mat Sci & Engn, 120 Neungdong Ro, Seoul 05029, South Korea
[2] Konkuk Univ, Dept Organ & Nano Syst Engn, 120 Neungdong Ro, Seoul 05029, South Korea
关键词
conjugated polymer; polymer-SWCNT hybridization; cascade doping; doping mechanism; flexible conductor; CHARGE-TRANSPORT; SEMICONDUCTORS; DRIVEN;
D O I
10.3390/polym16131884
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
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 AuCl3 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/AuCl3 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.
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页数:11
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