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Contenuto archiviato il 2022-12-23

Highly Oriented Arrays of Carbon Nanotubes: Synthesis, Characterization and Physical Properties

Obiettivo

The project aims at the elaboration of novel techniques for controlled synthesis of highly oriented arrays of carbon nanotubes, investigation of their fascinating physical properties, and development of a physical basis for utilization of these properties in novel nanodevices. In order to reach these aims the following objectives are planned:
1. to introduce a new controlled method of self-assembly of functionalized carbon nanotubes into ordered monolayers with nearly unperturbed crystal structure;
2. To develop a new technique for the carbon nanotube arrays growth in high-temperature plasma-chemical reactor of the atmosphere pressure barrier discharge;
3. To study experimentally physical properties of synthesized highly oriented arrays of carbon nanotubes;
4. To elaborate a consistent theory of electronic and optical properties of nanotube arrays as a basis for correct interpretation of experiments and proposition of novel nanotube-based electronic and optical devices.
The project includes theoretical and experimental researches and covers all the stages of NT investigation: from the fabrication of various NT-based structures through their characterization and study of their physical properties down to the formulation of physical principles of the design of NT-based devices. The following list of tasks is planned to be done during the project realization:
Task 1: Synthesis of planarly oriented NT arrays (monolayers) using the Langmuir-Blodgett technique;
Task 2: Investigation of electrical and magnetotransport properties of highly oriented NT arrays;
Task 3: Synthesis of vertically oriented NT arrays in a pulse barrier discharge;
Task 4: Optical properties of highly oriented NT arrays;
Task 5: Chirality effects in highly oriented NT arrays.
During the project a controlled method of self-assembly of functionalized NTs into ordered monolayers with nearly unperturbed structures and electronic properties will be developed, the recognition properties of bio-molecule coated layers of NTs will be tested for new applications, a technique for controlled growth of vertically oriented arrays of NTs in the atmospheric pressure barrier discharge will be developed. The project not only supplies the synthesis techniques but also provides consequent experimental studying and theoretical modeling of optical, electronic and magneto-transport properties of synthesized NT arrays. Particularly, a theory of electron-phonon and electron-photon interactions in chiral NTs in the presence of magnetic field will be built and a basic concept of quantum electrodynamics of NT arrays will be elaborated. Prospective results of the project are expected to be valuable for the design of a new family of NT-based electronic elements for the use in modern information technologies. Theoretical insight elaborated during the NT researches may be applied to nanostructures of other types, such as photonic fibers, quantum wires and quantum dots.

Argomento(i)

Invito a presentare proposte

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Meccanismo di finanziamento

NoE - Network of Excellence

Coordinatore

Swiss Federal Institute of Technology Ecole Polytechnique Federale de Lausanne
Contributo UE
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Indirizzo

CH-1015 Lausanne
Svizzera

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Collegamenti
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Partecipanti (5)