Copper-Doped Carbon Nanocomposites
L.K.Panina1, V.I. Siklitsky, A.V. Tolmatchev, S.G. Yastrebov
A.F. Ioffe Physico-Technical Institute, 194021 St Petersburg, Russia
1St Petersburg State University, 199034 St Petersburg, Russia
The potential of carbon-based materials is determined by the possibility of their wide
use in computer, electronics, machine-building, transport production, and medicine.
Specific features of production technology:
- weak sensitivity of the properties of a growing film to the nature of the substrate
material;
- low average temperature of the technological process (<200°C), which
permits film deposition on various substrates, including polymers, glasses, plastic
materials etc.);
- good film adhesion to various materials;
- possibility of controlling the nanostructure of the growing layer and the
physicochemical properties of coatings within a broad range;
- ecological cleanness of the main product and of its production technology.
Main directions, properties, areas of application of the
material
| |
Main Directions |
Properties of Materials |
Areas of application |
| 1. |
Improvement of protective coatings, including coatings
resistive to microorganisms |
Chemical inertness against aggressive media; wear
resistance; fungi- and bacteriostatical properties |
Protection of objects of historical and cultural heritage
against technogenic and anthropogenic polluters; protection of various units and
components; more stringent sterilization and substantial improvement in durability and
quality of surgical equipment for endoscopic and local microsurgery; fungi- and
bacteriostatical coatings of various components for closed life-support systems
(submarines, aircrafts and orbital cosmic stations) |
| 3. |
Fabrication of nanoelectronics devices |
Low electrical conductivity of doped samples,
single-electron transport |
Single-electron devices, metrology (current standards),
transition from aluminum to copper connections in IC technology |
| 4. |
Antifriction coatings |
Low friction coefficient in friction pairs, a factor-two
reduction of average wear for the pairs |
Increased service life of various mechanisms, drives,
reducing gear of general and special-purpose machines, improvement of economical and
ecological characteristics |
| 5. |
Fabrication of cold-cathode matrices |
Low work function of doped samples (less than 0.005 eV) |
Application of low-voltage cold-cathode matrices, reducing
the number of expensive technological operations in liquid-crystal display production,
reduction of display cost by a factor of three; |
| 6. |
Fabrication of passive shields for electronics |
High absorption of RF waves |
Passive shields for protection of electronics devices
against external em waves, human protection against em radiation, antiradar coatings in
Stealth technologies |
| 7. |
Coatings for trans- and implants |
High biological compatibility with living tissues of
organisms and plants |
Improved biological compatibility in implanting prosthetic
appliances (femoral neck, teeth, etc.), substantial improvement of immunological and
rheological properties of artificial joints. |
The proposed technology of producing diamond-like nanocomposite
coatings permits one to fabricate products with high characteristics, which have no
analogs in our country and all over the world. The existing technologies for diamond-like
film production are sensitive to substrate material, because they require a high
deposition temperature, which limits the scope of materials for the substrates
The work was partially supported by the Federal Project
"Integration" (Grant 326.004), Russian Research Program "Fullerenes and
Atomic Clusters" grant "Films-2" No 98059, RFBR grants 98-07-90336 and
State Russian Program "Physics of Solid State Nanostructures".
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