Laboratoire Léon Brillouin


Bât. 563 CEA Saclay

91191 Gif sur Yvette Cedex


Molecular electronics


Schematic representation of a molecule of bisthiolterthiophene connected to two gold nanoélectrodes. (C Kergueris, J.P. Bourgoin)
Molecular electronics aims at developing a data processing based on various types of nano-objects (molecules, bio-molecules, nanoparticules, nanotubes of carbon). The implementation of these objects unit by unit and measurements of their transport properties are two central points of this activity. In the case of molecules illustrated on the opposite image, the stake is the control of electrodes separated by 1 to 3 nm and the comprehension of the interface Molecule-Metal. 

Cross formed of two carbon nanotubes deposited on silica. The gray bands (150 nm width and height less than 1 nm) are "molecular Scotch tape" allowing the ordering of the nanotubes.
Realisation of devices and circuits containing carbon nanotubes passes by the control of their positioning on a surface. The auto-assembly of nanotubes on a surface locally functionalized chemically is a technique developped at DRECAM. It makes it possible to consider the design of circuits associating such devices. 

26-09-2005 (500)

Multi-fonctional nanomagnets
Single molecule magnets grafted on carbon nanotubes : the first of its kind has been realized at the Molecular Chemistry and Materials Institute in Orsay (CNRS/University of Paris 11) in collaboration with the Institut Lavoisier de Versailles (CNRS/Université de Versailles ... More »
Carbon Nanotube Chemistry: new functionalities
Tuning nanotubes' absorption wave length Carbon nanotubes possess exceptional electronic and mechanical properties, they appear to be very promising materials for electronic and sensing, polymer composites, energy conversion, or biological applications. However, fabrication of ... More »
Carbon nanotubes at high frequency
Carbon nanotube based HF transistors Thanks to their exceptional electronic properties, carbon nanotubes are a particularly well suited material for high frequency devices. Numerous predictions foresee that the cut off frequency of optimized carbon nanotube transistors would surpass ... More »
DNA based selfassembly of carbon nanotube transistors
Thanks to the amazing selfassembly properties of DNA, structures of exquisite complexity can be built just in designing proper DNA sequences (DNA origami is the best example). They can be used in the further design of complex systems involving other nanoobjects, or for the preparation of ... More »


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