Li, Wenshan ; Hennrich, Frank ; Flavel, Benjamin S. ; Kappes, Manfred M. ; Krupke, Ralph (2016)
Chiral-index resolved length mapping of carbon nanotubes in solution using electric-field induced differential absorption spectroscopy.
In: Nanotechnology, 27 (37)
doi: 10.1088/0957-4484/27/37/375706
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The length of single-walled carbon nanotubes (SWCNTs) is an important metric for the integration of SWCNTs into devices and for the performance of SWCNT-based electronic or optoelectronic applications. In this work we propose a rather simple method based on electric-field induced differential absorption spectroscopy to measure the chiral-index-resolved average length of SWCNTs in dispersions. The method takes advantage of the electric-field induced length-dependent dipole moment of nanotubes and has been verified and calibrated by atomic force microscopy. This method not only provides a low cost, in situ approach for length measurements of SWCNTs in dispersion, but due to the sensitivity of the method to the SWCNT chiral index, the chiral index dependent average length of fractions obtained by chromatographic sorting can also be derived. Also, the determination of the chiral-index resolved length distribution seems to be possible using this method.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2016 |
| Autor(en): | Li, Wenshan ; Hennrich, Frank ; Flavel, Benjamin S. ; Kappes, Manfred M. ; Krupke, Ralph |
| Art des Eintrags: | Bibliographie |
| Titel: | Chiral-index resolved length mapping of carbon nanotubes in solution using electric-field induced differential absorption spectroscopy |
| Sprache: | Englisch |
| Publikationsjahr: | 9 August 2016 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Nanotechnology |
| Jahrgang/Volume einer Zeitschrift: | 27 |
| (Heft-)Nummer: | 37 |
| DOI: | 10.1088/0957-4484/27/37/375706 |
| Kurzbeschreibung (Abstract): | The length of single-walled carbon nanotubes (SWCNTs) is an important metric for the integration of SWCNTs into devices and for the performance of SWCNT-based electronic or optoelectronic applications. In this work we propose a rather simple method based on electric-field induced differential absorption spectroscopy to measure the chiral-index-resolved average length of SWCNTs in dispersions. The method takes advantage of the electric-field induced length-dependent dipole moment of nanotubes and has been verified and calibrated by atomic force microscopy. This method not only provides a low cost, in situ approach for length measurements of SWCNTs in dispersion, but due to the sensitivity of the method to the SWCNT chiral index, the chiral index dependent average length of fractions obtained by chromatographic sorting can also be derived. Also, the determination of the chiral-index resolved length distribution seems to be possible using this method. |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Molekulare Nanostrukturen 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 20 Dez 2016 11:46 |
| Letzte Änderung: | 20 Dez 2016 11:46 |
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