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CNT fibers p-doped with F4TCNQ (2,3,5,6-Tetrafluoro-7,7,8,8-tetracyanoquinodimethane)
Author(s): Sandra Lepak; Sławomir Boncel; Iwona Jóźwik; Małgorzata Jakubowska; Krzysztof Koziol; Agnieszka Łękawa-Raus
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Paper Abstract

Films and fibers made of carbon nanotubes were found to be promising materials for future electrical and electronic engineering. Despite of many advantages provided by these materials, they are not without problems. The biggest issue is that the macroscopic CNT structures, such as films or fibers, have much lower electrical conductivity values than it is for individual carbon nanotubes. And therefore researchers worldwide try to increase electrical properties of those macroscopic structures. One of the approaches scientists are currently investigating is chemical doping. Despite chemical doping has been already reported there is still a huge list of compounds that are capable to increase the conductivity values and has not been tested yet. In this work one of such compounds has been examined. It is a strong p-dopant 2,3,5,6-Tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F4TCNQ). The solution of F4TCNQ in three different solvents (chloroform, acetic acid and dimethylsulfoxide) has been prepared and applied on purified CNT films. Both electrical conductivity and specific conductivity was measured. The best electrical conductivity value achieved is 5,24·106 S·m-1. Samples were also observed under SEM.

Paper Details

Date Published: 7 August 2017
PDF: 7 pages
Proc. SPIE 10445, Photonics Applications in Astronomy, Communications, Industry, and High Energy Physics Experiments 2017, 104454S (7 August 2017); doi: 10.1117/12.2280093
Show Author Affiliations
Sandra Lepak, Warsaw Univ. of Technology (Poland)
Sławomir Boncel, Silesian Univ. of Technology (Poland)
Iwona Jóźwik, Warsaw Univ. of Technology (Poland)
Institute of Electronic Materials Technology (Poland)
Małgorzata Jakubowska, Warsaw Univ. of Technology (Poland)
Institute of Electronic Materials Technology (Poland)
Krzysztof Koziol, Pembroke College (United Kingdom)
Agnieszka Łękawa-Raus, Warsaw Univ. of Technology (Poland)


Published in SPIE Proceedings Vol. 10445:
Photonics Applications in Astronomy, Communications, Industry, and High Energy Physics Experiments 2017
Ryszard S. Romaniuk; Maciej Linczuk, Editor(s)

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