Kinoshita, Megumi ; Steiner, Mathias ; Engel, Michael ; Small, Joshua P. ; Green, Alexander A. ; Hersam, Mark C. ; Krupke, Ralph ; Mendez, Emilio E. ; Avouris, Phaedon (2010)
The polarized carbon nanotube thin film LED.
In: Optics Express, 18 (25)
doi: 10.1364/OE.18.025738
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
We demonstrate a light emitting p-i-n diode made of a highly aligned film of separated (99%) semiconducting carbon nanotubes, self-assembled from solution. By using a split gate technique, we create p- and n-doped regions in the nanotube film that are separated by a micron-wide gap. We inject p- and n-type charge carriers into the device channel from opposite contacts and investigate the radiative recombination using optical micro-spectroscopy. We find that the threshold-less light generation efficiency in the intrinsic carbon nanotube film segment can be enhanced by increasing the potential drop across the junction, demonstrating the LED-principle in a carbon nanotube film for the first time. The device emits infrared light that is polarized along the long axes of the carbon nanotubes that form the aligned film.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2010 |
| Autor(en): | Kinoshita, Megumi ; Steiner, Mathias ; Engel, Michael ; Small, Joshua P. ; Green, Alexander A. ; Hersam, Mark C. ; Krupke, Ralph ; Mendez, Emilio E. ; Avouris, Phaedon |
| Art des Eintrags: | Bibliographie |
| Titel: | The polarized carbon nanotube thin film LED |
| Sprache: | Englisch |
| Publikationsjahr: | 23 November 2010 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Optics Express |
| Jahrgang/Volume einer Zeitschrift: | 18 |
| (Heft-)Nummer: | 25 |
| DOI: | 10.1364/OE.18.025738 |
| Kurzbeschreibung (Abstract): | We demonstrate a light emitting p-i-n diode made of a highly aligned film of separated (99%) semiconducting carbon nanotubes, self-assembled from solution. By using a split gate technique, we create p- and n-doped regions in the nanotube film that are separated by a micron-wide gap. We inject p- and n-type charge carriers into the device channel from opposite contacts and investigate the radiative recombination using optical micro-spectroscopy. We find that the threshold-less light generation efficiency in the intrinsic carbon nanotube film segment can be enhanced by increasing the potential drop across the junction, demonstrating the LED-principle in a carbon nanotube film for the first time. The device emits infrared light that is polarized along the long axes of the carbon nanotubes that form the aligned film. |
| 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: | 08 Nov 2011 11:31 |
| Letzte Änderung: | 05 Mär 2013 09:55 |
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