Abstract: The purpose of the present invention is to provide a method for producing boron nitride nanotubes, said method reducing the ratio of by-products having less reinforcing effects such as boron nitride fullerenes and boron nitride thin pieces, while enhancing the yield at the same time, without requiring a thermal oxidation treatment. The present invention provides a method for producing boron nitride nanotubes, said method being characterized by comprising: a step for obtaining a suspension by mixing a starting material that contains boron nitride nanotubes, a nonionic polymer dispersant having an sp3-bonded CH group, and an organic solvent; and a step for obtaining a dispersion liquid containing boron nitride nanotubes by subjecting the thus-obtained suspension to centrifugal separation, thereby removing by-products contained in the starting material.

Abstract: The present invention provides a method for manufacturing a dopant composition-nanomaterial composite, which method makes it possible to simply and efficiently change a Seebeck coefficient value of a nanomaterial. This manufacture method of the present invention includes the steps of: (a) putting a dopant composition in contact with a nanomaterial in a solvent; (b) drying a mixture obtained in the step (a) so as to remove the solvent, the dopant composition containing a given anion and an onium ion.

Abstract: The present invention provides a method for manufacturing a dopant composition-nanomaterial composite, which method makes it possible to simply and efficiently change a Seebeck coefficient value of a nanomaterial. This manufacture method of the present invention includes the step of putting a dopant composition in contact with a nanomaterial in a solvent, the dopant composition containing an anion, a cation, and a scavenger.

Abstract: A thermoelectric conversion material capable of increasing the conductivity, and increasing the Seebeck coefficient is provided. The thermoelectric conversion material according to the present invention contains a carbon nanotube, and has a G/D ratio of 25 or more as determined by Raman spectroscopic measurement, an electrical conductivity of 500 S/cm or more, and a Seebeck coefficient of 50 ?V/K or more.

Abstract: The present invention provides a method for manufacturing a dopant composition-nanomaterial composite, which method makes it possible to simply and efficiently change a Seebeck coefficient value of a nanomaterial. This manufacture method of the present invention includes the step of putting a dopant composition in contact with a nanomaterial in a solvent, the dopant composition containing an anion, a cation, and a scavenger.

Abstract: The present invention provides a method for manufacturing a dopant composition-nanomaterial composite, which method makes it possible to simply and efficiently change a Seebeck coefficient value of a nanomaterial. This manufacture method of the present invention includes the steps of: (a) putting a dopant composition in contact with a nanomaterial in a solvent; (b) drying a mixture obtained in the step (a) so as to remove the solvent, the dopant composition containing a given anion and an onium ion.

Abstract: A method of particle detection includes a shock wave generating step of irradiating a dispersion liquid having dispersed first particles having a first diameter and second particles having a second diameter larger than the first diameter, with a pulse laser, and generating a shock wave in the dispersion liquid, a migration speed difference imparting step of migrating and accelerating the first particles at a first acceleration speed, and the second particles at a second acceleration speed higher than the first acceleration speed, by the shock wave generated at the shock wave generating step, and a detecting step of detecting the first or second particles.

Abstract: A method of particle detection includes a shock wave generating step of irradiating a dispersion liquid having dispersed first particles having a first diameter and second particles having a second diameter larger than the first diameter, with a pulse laser, and generating a shock wave in the dispersion liquid, a migration speed difference imparting step of migrating and accelerating the first particles at a first acceleration speed, and the second particles at a second acceleration speed higher than the first acceleration speed, by the shock wave generated at the shock wave generating step, and a detecting step of detecting the first or second particles.