Restoration of the genuine electronic properties of functionalized single-walled carbon nanotubes

Um, Jo Eun; Chung, Chan‐Hwa; Lee, Dongkyu; Yoo, Pil J.; Kim, Woo Jae

doi:10.1039/c4ra07171a

Cited by 6 publications

(2 citation statements)

References 22 publications

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“…One may note that the recorded values for the films are slightly lower than for the parent SWCNT material used to make them. This is because high-temperature annealing used to remove the EC binder may detach a part of the functional groups from the SWCNT side wall 60 , decreasing the I D /I G ratios. The trends are nevertheless preserved.…”

Section: Resultsmentioning

confidence: 99%

Tuning wettability and electrical conductivity of single-walled carbon nanotubes by the modified Hummers method

Stando

Han

Kumanek

et al. 2022

Sci Rep

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Partial oxidation of nanocarbon materials is one of the most straightforward methods to improve their compatibility with other materials, which widens its application potential. This work studied how the microstructure and properties of high crystallinity single-walled carbon nanotubes (SWCNTs) can be tailored by applying the modified Hummers method. The influence of temperature (0, 18, 40 °C), reaction time (0 min to 7 h), and the amount of KMnO4 oxidant was monitored. The results showed that depending on the oxidation conditions, the electronic characteristics of the material could be adjusted. After optimizing the parameters, the SWCNTs were much more conductive (1369 ± 84 S/cm with respect to 283 ± 32 S/cm for the untreated material). At the same time, the films made from them exhibited hydrophilic character of the surface (water contact angle changed from 71° to 27°).

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Section: Resultsmentioning

confidence: 99%

Tuning wettability and electrical conductivity of single-walled carbon nanotubes by the modified Hummers method

Stando

Han

Kumanek

et al. 2022

Sci Rep

View full text Add to dashboard Cite

show abstract

“…Carbon nanotubes (CNTs) exhibit fascinating electrical, thermal, and optical properties, and remarkable mechanical stability, which make these unique one-dimensional nanostructures promising candidates for use in a variety of devices and composites. 1 Silicon carbide (SiC) is a promising material for power electronics because of its wide band gap 2 (2.0 eV o E g o 7.0 eV) and high thermal conductivity. In recent years, SiC has received much attention because of its potential for high-power devices.…”

Section: Introductionmentioning

confidence: 99%