2004
DOI: 10.1016/j.carbon.2004.02.005
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UV–VIS–NIR spectroscopy study of sensitivity of single-wall carbon nanotubes to chemical processing and Van-der-Waals SWNT/SWNT interaction. Verification of the SWNT content measurements by absorption spectroscopy

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Cited by 177 publications
(138 citation statements)
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“…In the as-prepared sample, the S 11 peak at 1850 nm indicates that there are some large-diameter carbon nanotubes and the transition energy is about 0.7 eV. The absorption peaks are broad, which indicates the expected bundled state of the dispersion as well as polychirality of CNT in the film [20]. The S 11 peak is slightly suppressed after the first HCl treatment, which indicates that mild acid has a slight p-doping effect on CNT by protonation.…”
Section: The As Prepared Devices and The Effect Of The Post Treatmentsmentioning
confidence: 97%
“…In the as-prepared sample, the S 11 peak at 1850 nm indicates that there are some large-diameter carbon nanotubes and the transition energy is about 0.7 eV. The absorption peaks are broad, which indicates the expected bundled state of the dispersion as well as polychirality of CNT in the film [20]. The S 11 peak is slightly suppressed after the first HCl treatment, which indicates that mild acid has a slight p-doping effect on CNT by protonation.…”
Section: The As Prepared Devices and The Effect Of The Post Treatmentsmentioning
confidence: 97%
“…Two types of competitive interactions influence the dispersibility of the nanotubes: van der Waals forces between CNTs and interactions between CNTs and their surroundings. 8 Several approaches have been taken to improve the stability of a CNT dispersion, for example sonication, 9 functionalization, [10][11][12] use of surfactants, 13-15 among many others. 16,17 The quality of these dispersions are usually quantified by techniques such as absorption, fluorescence and Raman spectroscopies, 18 as well as techniques like transmission electron microscopy (TEM), scanning electron microscopy (SEM) and atomic force microscopy (AFM).…”
Section: Introductionmentioning
confidence: 99%
“…ОСУНТ получены дуговым методом на катализаторе Ni/Y [6] и очищены окислением в газовой фазе до 90%-ного содержания. Средние диаметр и длина нанотрубок -1.4−1.6 nm и ∼ 1.0 µm соответственно [7]. После очистки нанотрубки находятся в сильно агломерированном состоянии вслед-ствие большой поверхностной энергии, присущей нано-частицам.…”
Section: методы приготовления образцовunclassified