Apparatus and method for producing oriented carbon nanotube aggregate

A method for producing an aligned carbon nanotube aggregate by synthesizing the aligned carbon nanotube aggregate on a substrate for producing the aligned carbon nanotube aggregate, the substrate being constituted by a base substrate which supports a catalyst on a surface thereof, the method comprising:

• a growth step of synthesizing the aligned carbon nanotube aggregate by use of a production apparatus,
• the production apparatus including:
• a growth unit that includes a growth furnace for synthesizing the aligned carbon nanotube aggregate by causing an environment surrounding the catalyst to be an environment of a raw material gas and by heating at least either the catalyst or the raw material gas;
• a transfer unit that transfers the substrate from an inside to an outside of the growth furnace;
• and
• heating means for heating, from the outside of the growth furnace, an outlet of the growth furnace through which outlet the substrate exits from the growth furnace, and
• the growth step being carried out in the growth unit while the outlet is heated from the outside of the growth furnace.