153results about "Nanostructure manipulation" patented technology

A method of preparing a patterned carbon nanotube array a patterned carbon nanotube array prepared thereby are provided. The method includes forming carbon nanotubes in channels of porous templates, arranging the templates in a predetermined pattern on a substrate and selectively removing the templates to expose the carbon nanotubes.

An apparatus of the present invention for producing an aligned carbon-nanotube aggregate is an apparatus for producing an aligned carbon-nanotube aggregate by synthesizing the aligned carbon-nanotube aggregate on a base material having a catalyst on a surface thereof, the apparatus including: a formation unit that processes a formation step of causing an environment surrounding the catalyst to be an environment of a reducing gas and heating at least either the catalyst or the reducing gas; a growth unit that processes a growth step of synthesizing the aligned carbon-nanotube aggregate by causing the 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; and a transfer unit that transfers the base material at least from the formation unit to the growth unit. Thus provided is a production apparatus and a production method that are capable of improving efficiency in the production of aligned CNT aggregates by preventing a decrease in production volume and deterioration in quality of aligned CNT aggregates in serial production and by making it easy to increase the size of the apparatus.

A semiconductor nanocrystal-polymer composite including a semiconductor nanocrystal, a polymer comprising a plurality of carboxylate anion groups (—COO−) bindable to a surface of the semiconductor nanocrystal, and a metal cation bindable to a carboxylate anion group of the plurality of carboxylate anion groups.

The diameter of carbon nanotubes grown by chemical vapor deposition is controlled independent of the catalyst size by controlling the residence time of reactive gases in the reactor.

An aggregate of carbon-based fine structures in which a plurality of carbon-based fine structures are collected, wherein respective carbon-based fine structures are oriented in the same direction. The above aggregate of carbon-based fine structures is an aggregate of a plurality of carbon-based fine structures in a state they are pulled by one another with strong interaction, and has such a length that allows the improvement of the handleability and workability thereof.

A method of separating particles is provided that includes exposing a selective PDMS adhesive to a particle-contaminated surface, where the selective PDMS adhesive captures particles present on the particle-contaminated surface to form a fouled selective PDMS adhesive, and exposing the fouled selective PDMS adhesive to a PDMS transfer sheet, where particles outside of a desired range are transferred over to the PDMS transfer sheet, where the fouled selective PDMS adhesive retains only the particles of a desired range.

The present invention relates to a method for transferring graphene using a hot press, comprising: a step of contacting graphene, having a thermal-releasable sheet attached thereto, with a target substrate; and a step of pressing and heating the graphene having the thermal-releasable sheet attached thereto and the target substrate using the upper press and lower press of a hot press so as to separate the thermal-releasable sheet and the graphene and transfer the separated graphene to the target substrate. The present invention also relates to a graphene-transfer hot press apparatus for said transfer process.

Carbon nanotubes oriented in one direction are efficiently and easily manufactured. The method is provided with a step of bringing a solution, which contains metal ions to be a catalyst for growing carbon nanotubes, into contact with crystalline metal oxide particles, and adhering the catalyst on the surfaces of the metal oxide particles; a step of growing carbon nanotubes on the surfaces of the metal oxide particles whereupon the catalyst is adhered, by a CVD method or a combustion method, and manufacturing metal oxide particles which support the carbon nanotubes grown parallel to a direction substantially vertical to the surfaces of the metal oxide particles; and a step of removing the metal oxide particles from the metal oxide particles supporting the carbon nanotubes.