Abstract: A non-evaporation getter material suitable for non-evaporation getters disposed in electron devices, such as fluorescent luminous tubes. The getter material is sized and shaped to more efficiently absorb gases actively at low temperatures.

Abstract: The present invention provides carbon nanotubes perpendicularly and densely deposited over a wide area of a substrate. The carbon nanotubes are manufactured by supplying alternating-current power at a specific frequency between an anode and a cathode disposed in a reactor, and causing plasma to be generated between the anode and the cathode by introducing mixed gas containing an aliphatic hydrocarbon having 1-5 carbon atoms and hydrogen or mixed gas containing an aromatic hydrocarbon and hydrogen. The substrate is disposed between the anode and the cathode and held at a distance two times or less of the mean free path of a hydrocarbon cation from the anode.

Abstract: A non-evaporation getter material suitable for non-evaporation getters disposed in electron devices, such as fluorescent luminous tubes. The getter material is sized and shaped to more efficiently absorb gases actively at low temperatures.

Abstract: The present invention provides carbon nanotubes perpendicularly and densely deposited over a wide area of a substrate. The carbon nanotubes are manufactured by supplying alternating-current power at a specific frequency between an anode and a cathode disposed in a reactor, and causing plasma to be generated between the anode and the cathode by introducing mixed gas containing an aliphatic hydrocarbon having 1-5 carbon atoms and hydrogen or mixed gas containing an aromatic hydrocarbon and hydrogen. The substrate is disposed between the anode and the cathode and held at a distance two times or less of the mean free path of a hydrocarbon cation from the anode.

Abstract: The present invention provides carbon nanotubes perpendicularly and densely deposited over a wide area of a substrate. The carbon nanotubes are manufactured by supplying alternating-current power at a specific frequency between an anode and a cathode disposed in a reactor, and causing plasma to be generated between the anode and the cathode by introducing mixed gas containing an aliphatic hydrocarbon having 1-5 carbon atoms and hydrogen or mixed gas containing an aromatic hydrocarbon and hydrogen. The substrate is disposed between the anode and the cathode and held at a distance two times or less of the mean free path of a hydrocarbon cation from the anode.

Abstract: A method is herein disclosed for preparing a film of a carbon nano-tube to obtain a low cost field emission source using a carbon nano-tube. A single-wall carbon nano-tube is placed together with acetone in a beaker, to which ultrasonic wave is applied to disperse the single-wall carbon nano-tube in acetone. Thereafter, acetone is evaporated spontaneously to deposit the single-wall carbon nano-tube on a copper plate placed in the beaker. The copper plate on the surface of which the single-wall carbon nano-tube is deposited is used for a cathode of an electronic tube.

Abstract: There is provided a method for preparing a single layer carbon nano-tube stably and in high preparation efficiency. Helium is introduced from a gas inlet 19 while exhausting inside a vacuum chamber 11 by means of a rotary pump 12 to prepare an atmosphere of rare gas. DC arc discharge is established between a metal-added carbon electrode to which a single metal is added 13 and a metal-added carbon electrode to which a single metal the kind of which is different from that of the former metal is added 14 by the use of a discharge power source apparatus 17. Carbon and metals are evaporated from both electrodes, and the metals are alloyed to act as a catalyst to the carbon and the single layer carbon nano-tube is prepared.