Development of cold cathode displays based on singlewall carbon nanotubes

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Development of cold cathode displays based on
single-wall carbon nanotubes
Konov V. I., Natural Sciences Center of General
Physics Institute of Russian Academy of Sciences,
Moscow
Gorfinkel B. I., Research and Development
Institute Volga, Saratov
Workshop  RD on Materials in Russia and CIS 
Paris, June 10 -11, 2002
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The GPI has been founded in 1983 by a Nobel
Prize laureate academician A.M. Prokhorov. The
Institute is a complex, multi-discipline research
unit specializing in different fields of general
physics

• laser physics and optics,
• solid state physics,
• nanomaterials,
• integral and fiber optics,
• plasma physics and photoelectronics,
• laser medicine and ecology.

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Field electron emission from carbon nanomaterials
Basic investigated materials 1) Nanocrystalline
thin films (diamond, mixture of diamond and
graphite)Synthesis microwave and electrical
discharge plasma CVD in
CH4H2Ar mixtures 2) Single wall carbon
nanotubesSynthesis dc arc in He
atmosphere 3) NanotubesSynthesis pyrolisis
laser irradiation of carbon microparticles 4) Nano
composites(diamond-metal, diamond-graphite,
SiO2-graphite).Synthesis shock compression,
pyrolisis Diamond nanoparticles and onion
carbonSynthesis explosion technique
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Field electron emission from carbon nanomaterials

• For comparison
• 1) Polycrystalline diamond, including tipped
  structures
• Monocrystalline graphite
• 3) Diamond-like carbon films
• Nanocrystalline nitride (BN, AlN, GaN) films

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HRTEM image of a cross-section of
single-wall carbon nanotube rope
DC-arc discharge reactor for synthesis of
single-wall carbon nanotube
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Raman control of nanotubes
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Different steps of chemical purification
of the nanotube soot
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Scheme of a liquid electrophoretic deposition of
a single-wall carbon nanotubes film onto the
cathode.
La(NO3)3 was used as a charger.
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Developed and fabricated together with Volga
A working model of a diode-type digital indicator
with a single-wall carbon nanotube cathode. A
triode scheme is designed.
160 V, 5 µA
425 V, 210 µA
A dependence of the indicator brightness on the
applied voltage.
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VAC of a diode-type nanotube digital indicator
Anode-cathode distance - 200 mm
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Prof. Shinji Hayashu, a foreign collaborator on
the project 1400 from Kobe University , Japan,
is checking the lamp with a single-wall carbon
nanotube cathode during his visit to GPI in July
2001.
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We are

• open for cooperation and hope that this
  information will be interesting and useful to
  you.
• looking for an industrial partner and investor to
  implement the obtained results to real industrial
  production and market promotion of devices based
  on cold cathodes with single-wall carbon
  nanotubes being developed jointly by GPI (Moscow)
  and RD Institute Volga (Saratov).

V.I. Konov, Director, Corresponding Member of the
Russian Academy of Sciences