The polarized carbon nanotube thin film LED
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...
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| Veröffentlicht in: | Optics express 2010-12, Vol.18 (25), p.25738-25745 |
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| container_issue | 25 |
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| container_title | Optics express |
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| creator | Kinoshita, Megumi Steiner, Mathias Engel, Michael Small, Joshua P Green, Alexander A Hersam, Mark C Krupke, Ralph Mendez, Emilio E Avouris, Phaedon |
| description | 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. |
| doi_str_mv | 10.1364/oe.18.025738 |
| format | Article |
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| fulltext | fulltext |
| identifier | ISSN: 1094-4087 |
| ispartof | Optics express, 2010-12, Vol.18 (25), p.25738-25745 |
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| language | eng |
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| source | MEDLINE; DOAJ Directory of Open Access Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Alma/SFX Local Collection |
| subjects | Equipment Design Equipment Failure Analysis Lighting - instrumentation Nanotechnology - instrumentation Nanotubes, Carbon - chemistry Nanotubes, Carbon - ultrastructure Refractometry - instrumentation Semiconductors |
| title | The polarized carbon nanotube thin film LED |
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