Deposition of silver nanoparticles on single wall carbon nanotubes via a self assembled block copolymer micelles

2009 ◽  
Vol 69 (7) ◽  
pp. 552-557 ◽  
Author(s):  
Himadri Acharya ◽  
Jinwoo Sung ◽  
Hye-in Shin ◽  
Soo-Young Park ◽  
Byung Gil Min ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Silver Nanoparticles ◽  
Block Copolymer ◽  
Single Wall Carbon Nanotubes ◽  
Single Wall Carbon ◽  
Block Copolymer Micelles ◽  
Copolymer Micelles ◽  
Self Assembled

Nonvolatile memories using the electrets of conjugated rod-coil block copolymer and its nanocomposite with single wall carbon nanotubes

2015 ◽  
Vol 3 (3) ◽  
pp. 551-558 ◽  
Author(s):  
Yu-Cheng Chiu ◽  
Chien-Chung Shih ◽  
Wen-Chang Chen
Keyword(s):  
Carbon Nanotubes ◽  
Block Copolymer ◽  
High Performance ◽  
Single Wall Carbon Nanotubes ◽  
Charge Storage ◽  
Memory Devices ◽  
Single Wall Carbon ◽  
Nonvolatile Memories ◽  
Self Assembled

Self-assembled conjugated rod-coil block copolymer and its nanocomposites with SWCNT could be used as the charge storage layer for high-performance OFET memory devices.

scholarly journals Close-packed block copolymer micelles induced by temperature quenching

2018 ◽  
Vol 115 (28) ◽  
pp. 7218-7223 ◽  
Author(s):  
Liwen Chen ◽  
Han Seung Lee ◽  
Sangwoo Lee
Keyword(s):  
Block Copolymer ◽  
Spherical Particles ◽  
Face Centered Cubic ◽  
Time Resolved ◽  
Hexagonal Close Packed ◽  
Block Copolymer Micelles ◽  
Copolymer Micelles ◽  
Crystal Grains ◽  
Self Assembled ◽  
Face Centered

Close-packed structures of uniformly sized spheres are ubiquitous across diverse material systems including elements, micelles, and colloidal assemblies. However, the controlled access to a specific symmetry of self-assembled close-packed spherical particles has not been well established. We investigated the ordering of spherical block copolymer micelles in aqueous solutions that was induced by rapid temperature changes referred to as quenching. As a function of quench depth, the quenched self-assembled block copolymer micelles formed three different close-packed structures: face-centered cubic (fcc), random stacking of hexagonal-close-packed layers (rhcp), and hexagonal-close-packed (hcp). The induced hcp and rhcp structures were stable for at least a few weeks when maintained at their quench temperatures, but heating or cooling these hcp and rhcp structures transformed both structures to fcc crystallites with coarsening of the crystal grains, which suggests that these noncubic close-packed structures are intermediate states. Time-resolved scattering experiments prove that the micellar rhcp structures do not originate from the rapid growth of competing close-packed structures. We speculate that the long-lived metastable hcp and rhcp structures originate from the small size of crystal grains, which introduces a nonnegligible Laplace pressure to the crystal domains. The reported transitions from the less stable hcp to the more stable rhcp and fcc are experimental observations of Ostwald’s rule manifesting the transition order of the key close-packed structures in the crystallization of close-packed uniform spheres.

Self-Assembly Fabrication of High Performance Carbon Nanotubes Based FETs

2003 ◽  
Vol 772 ◽  
Author(s):  
Emmanuel Valentin ◽  
Stephane Auvray ◽  
Arianna Filoramo ◽  
Aline Ribayrol ◽  
Marcelo Goffman ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Self Assembly ◽  
High Performance ◽  
Field Effect Transistors ◽  
High Yield ◽  
Single Wall Carbon Nanotubes ◽  
Single Wall Carbon ◽  
Assembled Monolayers ◽  
Self Assembled

AbstractWe describe the realization of high quality self-assembled single wall carbon nanotube field effect transistors (CNTFET). A method using self-assembled monolayers (SAMs) is used to obtain high yield selective deposition placement of single wall carbon nanotubes (SWNTs) on predefined regions of a substrate. This is achieved with individual or small bundles of SWNTs and with high densities suitable for fabrication of integrated devices. We show that such positioned SWNTs can be electrically contacted to realize high performance transistors, which very well compare with state-of-the-art CNTFETs. We therefore validate the self-assembly approach to reliably fabricate efficient carbon nanotube based devices.

Extremely Bright Full Color Alternating Current Electroluminescence of Solution-Blended Fluorescent Polymers with Self-Assembled Block Copolymer Micelles

ACS Nano ◽  
2013 ◽  
Vol 7 (12) ◽  
pp. 10809-10817 ◽  
Author(s):  
Sung Hwan Cho ◽  
Seong Soon Jo ◽  
Ihn Hwang ◽  
Jinwoo Sung ◽  
Jungmok Seo ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Alternating Current ◽  
Full Color ◽  
Fluorescent Polymers ◽  
Block Copolymer Micelles ◽  
Copolymer Micelles ◽  
Self Assembled

Nanoporous Gold Films Created Using Templates Formed from Self-Assembled Structures of Inorganic–Block Copolymer Micelles

2003 ◽  
Vol 15 (10) ◽  
pp. 829-831 ◽  
Author(s):  
M. Haupt ◽  
S. Miller ◽  
R. Glass ◽  
M. Arnold ◽  
R. Sauer ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Nanoporous Gold ◽  
Gold Films ◽  
Block Copolymer Micelles ◽  
Copolymer Micelles ◽  
Self Assembled
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