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Nanotube Carbon Structures


Nanotube Carbon Structures – New Material for Electron Emitters

Tech Area / Field

  • MAT-ELE/Organic and Electronics Materials/Materials
  • MAT-SYN/Materials Synthesis and Processing/Materials

8 Project completed

Registration date

Completion date

Senior Project Manager
Novozhilov V V

Leading Institute
Russian Academy of Sciences / Institute of Radioengineering and Electronics, Russia, Moscow

Supporting institutes

  • Russian Academy of Sciences / Kazan Physical-Technical Institute, Russia, Tatarstan, Kazan\nRussian Academy of Sciences / Institute of Radioengineering and Electronics / Saratov Branch (SB IRE RAS), Russia, Saratov reg., Saratov\nRussian Academy of Sciences / Institute of Crystallography, Russia, Moscow


  • Technische Universität Ilmenau, Germany, Ilmenau\nUniversity of Oxford / Department of Materials / Inorganic Chemistry Laboratory, UK, Oxford\nUniversity of Oxford / Department of Materials, UK, Oxford\nUniversity of Cambridge / Engineering Department, UK, Cambridge\nPennsylvania State University, USA, PA, University Park

Project summary

The aim of the Project is the development of planar nanotube carbon structures and the fabrication on their base of low voltage field electron emitters suitable for usage in flat vacuum displays and other electron vacuum devices.

A one-year Feasibility Study of the project was completed in August 2000.

In the course of these investigations several types of planar nanotube carbon structures were developed and fabricated. These types of structures include nanotube carbon structures grown by CVD method, nanotube carbon structures grown from carbon vapor and composite layers with single walled carbon nanotubes. The structure of fabricated layers was characterized by the scanning electron microscopy method. The structure of separate nanotubes in layers was studied by method of the high resolution transmission electron microscopy. Field emission characteristics of fabricated layers were investigated. For best samples the density of emission current of 100 A/cm2 corresponded to the average electric field about 1.2 V/m and current density of 10 mA/cm2 – to the average field 4-5 V/m. The value of the field amplification coefficient for best samples reached 3,500.

Within the frames of the present Project we plan to continue investigations in the following directions.

1. Development of novel better quality nanotube carbon structures of two types:

– the nanotube carbon structures fabricated by CVD method and its various modifications;
– composite layers on the basis of single-walled and multiwalled carbon nanotubes fabricated using various techniques.

2. Investigations of the structure of fabricated layers and the structure of separate nanotubes in the layers by the scanning electron microscopy and the transmission high resolution electron microscopy.

3. Investigations of field emission characteristics of fabricated carbon layers including time stability and spatial distribution of emission current. On the basis of these investigations factors determining main parameters of field electron emitters (the average operating electric field and field amplification coefficient) should be found and stable planar low voltage field emitters should be elaborated.

At the final stage of the Project we plan to develop and to fabricate the prototypes of vacuum devices with field emitters on the base of nanotubes carbon structures produced within the frames of this Project.


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