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Electroluminescence from a single nanotube–molecule–nanotube junction

Marquardt, Christoph W. and Grunder, Sergio and Błaszczyk, Alfred and Dehm, Simone and Hennrich, Frank and Löhneysen, Hilbert v. and Mayor, Marcel and Krupke, Ralph (2010):
Electroluminescence from a single nanotube–molecule–nanotube junction.
In: Nature Nanotechnology, pp. 863-867, 5, (12), ISSN 1748-3387,
[Online-Edition: http://dx.doi.org/10.1038/nnano.2010.230],
[Article]

Abstract

The positioning of single molecules between nanoscale electrodes1, 2, 3, 4, 5, 6, 7, 8 has allowed their use as functional units in electronic devices. Although the electrical transport in such devices has been widely explored, optical measurements have been restricted to the observation of electroluminescence from nanocrystals and nanoclusters9, 10 and from molecules in a scanning tunnelling microscope setup11, 12. In this Letter, we report the observation of electroluminescence from the core of a rod-like molecule between two metallic single-walled carbon nanotube electrodes forming a rigid solid-state device. We also develop a simple model to explain the onset voltage for electroluminescence. These results suggest new characterization and functional possibilities, and demonstrate the potential of carbon nanotubes for use in molecular electronics.

Item Type: Article
Erschienen: 2010
Creators: Marquardt, Christoph W. and Grunder, Sergio and Błaszczyk, Alfred and Dehm, Simone and Hennrich, Frank and Löhneysen, Hilbert v. and Mayor, Marcel and Krupke, Ralph
Title: Electroluminescence from a single nanotube–molecule–nanotube junction
Language: English
Abstract:

The positioning of single molecules between nanoscale electrodes1, 2, 3, 4, 5, 6, 7, 8 has allowed their use as functional units in electronic devices. Although the electrical transport in such devices has been widely explored, optical measurements have been restricted to the observation of electroluminescence from nanocrystals and nanoclusters9, 10 and from molecules in a scanning tunnelling microscope setup11, 12. In this Letter, we report the observation of electroluminescence from the core of a rod-like molecule between two metallic single-walled carbon nanotube electrodes forming a rigid solid-state device. We also develop a simple model to explain the onset voltage for electroluminescence. These results suggest new characterization and functional possibilities, and demonstrate the potential of carbon nanotubes for use in molecular electronics.

Journal or Publication Title: Nature Nanotechnology
Volume: 5
Number: 12
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Fachgebiet Molekulare Nanostrukturen
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 08 Nov 2011 11:34
Official URL: http://dx.doi.org/10.1038/nnano.2010.230
Identification Number: doi:10.1038/nnano.2010.230
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