Self-assembly of linear arrays of semiconductor nanoparticles on carbon single-walled nanotubes.
Ligand-stabilized nanocrystals (NCs) were strongly bound to the nanotube surfaces by simple van der Waals forces. Linear arrays of CdSe and InP quantum dots were formed by self-assembly using the grooves in bundles of carbon single-walled nanotubes (SWNTs) as a one-dimensional template. A simple geometrical model explains the ordering in terms of the anisotropic properties of the nanotube surface. CdSe quantum rods were also observed to self-organize onto SWNTs with their long axis parallel to the nanotube axis. This approach offers a route to the formation of ordered NC/SWNT architectures that avoids problems associated with surface derivatization.
Engtrakul
Chaiwat
C
National Renewable Energy Laboratory, 1617 Cole Boulevard, Golden, Colorado 80401, USA. chaiwat_engtrakul@nrel.gov
Kim
Yong-Hyun
YH
Nedeljković
Jovan M
JM
Ahrenkiel
S Phil
SP
Gilbert
Katherine E H
KE
Alleman
Jeff L
JL
Zhang
S B
SB
Mićić
Olga I
OI
Nozik
Arthur J
AJ
Heben
Michael J
MJ
D019187:Cadmium Compounds / Q000737:chemistry; D057927:Hydrophobic and Hydrophilic Interactions; D007204:Indium / Q000737:chemistry; D008024:Ligands; D053758:Nanoparticles / Q000737:chemistry*; D037742:Nanotubes, Carbon / Q000737:chemistry*; D010316:Particle Size; D010720:Phosphines / Q000737:chemistry; D045663:Quantum Dots; D018036:Selenium Compounds / Q000737:chemistry; D012666:Semiconductors; D013499:Surface Properties
D019187:Cadmium Compounds; D008024:Ligands; D037742:Nanotubes, Carbon; D010720:Phosphines; D018036:Selenium Compounds; D007204:Indium; C058667:cadmium selenide; C090882:indium phosphide