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Self-assembly with carbon nanotubes: towards devices for information processing

Objective

Carbon nano-tubes, due to their unique electrical and mechanical properties have aroused a great interest as one of the best candidates for Molecular Electronics. The project will study the growth, nano-manipulation as well as the electronic properties of single wall carbon nano-tubes (SWCNT) with a particular emphasis on junctions. The work will be focused on the study of nano-manipulation techniques based on self-assembly and chemistry modifications. The material will be obtained by laser ablation technique. As a powerful alternative, in-situ growth of CNT will be addressed using CVD. Using these techniques, various types of junctions will be fabricated and their transport properties will be studied. Optimisation of the processes will be performed using diverse characterisations techniques associated with modelling. The final objective is to demonstrate the applicability of CNT for the fabrication of electronic devices.
Carbon nano-tubes, due to their unique electrical and mechanical properties have aroused a great interest as one of the best candidates for Molecular Electronics. The project will study the growth, nano-manipulation as well as the electronic properties of single wall carbon nano-tubes (SWCNT) with a particular emphasis on junctions. The work will be focused on the study of nano-manipulation techniques based on self-assembly and chemistry modifications. The material will be obtained by laser ablation technique. As a powerful alternative, in-site growth of CNT will be addressed using CVD. Using these techniques, various types of junctions will be fabricated and their transport properties will be studied. Optimisation of the processes will be performed using diverse characterisations techniques associated with modelling. The final objective is to demonstrate the applicability of CNT for the fabrication of electronic devices.

OBJECTIVES
The Saturn project is defined in order to study the growth, the nano-manipulation as well as the electronic properties of single wall carbon nano-tubes (SWCNT) with a particular emphasis on junctions in order to allow the use of their characteristics for devices fabrication. Therefore, the project will
i) grow high quality nano-tubes in bulk quantities with a good degree of purity using mainly laser ablation technique, but also CVD method for direct growth of nano-tubes on a patterned surface
ii) study the tools for nano-manipulation self-assembly based techniques in order to establish the connection with various materials
iii) study the junction between a nano-tube and either an electrode or another nano-tube,
iv) characterise nanotubes and devices to have a better understanding of the mechanical and electronic properties of CNT,
v) model the properties of CNT and
vi) investigate the potential of nanotubes for Molecular Electronics.

DESCRIPTION OF WORK
The prospects of a future Molecular Technology-relevant technology based upon CNT are intimately linked to the success of synthetic routes aimed at the controlled production of "designed" devices containing selected CNT located at defined positions. This central aim is served on a number of different levels by the co-ordinated synthesis drive in WP1. Based on laser ablation technique, WP1 will provide routinely high quality material and will improve its master age. In parallel, WP1 will investigate the possibility of in site-localised growth using CVD technique. This material will be used in WP2 to improve manipulation based on surface energy (self-assembly) technique. In this WP, the attachment of CNTs together or with electrodes by modification of their ends or their sidewalls will be investigated. The work in WP3 will be devoted to the study of the electronic (transport) properties of the CNT/CNT and CNT/electrodes junctions fabricated in WP2. The improvements of the growth as well as the process will be undertaken by characterisations and modelling performed in WP4 and WP5 either on crude CNTs on processed tubes. In these WP experimental as well as theoretical studies will be performed to a better understanding of the electronics properties of the CNTs. Finally in WP6 some devices will be fabricated to demonstrate the quality of nano-tubes for Molecular Electronics.
Fabrication of a 3x3 array of Carbon nanotube FET fabrication of CNT FETs fabrication of logical devices based on CNT EFT fabication of room temperature SET using CNThigh yield, high quality of CNT fabrication demonstraton of CNT light emission localised growth of CNT fabrication of CNTFET by localised CVD growth functionalisation of CNt using DNA modelling of physical properties of CNTs modelling of selective attachment o electrode modelling of selective attachment on surface

Funding Scheme

CSC - Cost-sharing contracts

Coordinator

MOTOROLA SAS
Address
Parc Des Algorithmes Saint Aubin
91193 Gif Sur Yvette
France

Participants (7)

CONSEJO SUPERIOR DE INVESTIGACIONES CIENTIFICAS
Spain
Address
C/serrano, 117
Madrid
ECOLE NORMALE SUPERIEURE PARIS
France
Address
45, Rue D'ulm
75230 Paris Cedex 05
INSTITUTE FOR SOLID STATE AND MATERIALS RESEARCH DRESDEN
Germany
Address
Helmholtzstrasse 20
01069 Dresden
MOTOROLA INC
United States
Address
1303 East Algonquin Road
60196 Schaumburg Il
TECHNISCHE UNIVERSITAT DRESDEN
Germany
Address
Helmholtzstrasse 10
01062 Dresden
TECHNISCHE UNIVERSITEIT DELFT
Netherlands
Address
Julianalaan 134
2628 BL Delft
UNIVERSITAET BASEL
Switzerland
Address
Petersgraben 35
4003 Basel