Synthesis and Characterization of New Micrometer-Sized Radiopaque Polymeric Particles of Narrow Size Distribution by a Single-Step Swelling of Uniform Polystyrene Template Microspheres for X-ray Imaging Applications

2006 ◽  
Vol 7 (9) ◽  
pp. 2650-2660 ◽  
Author(s):  
Anna Galperin ◽  
Shlomo Margel
Keyword(s):  
Size Distribution ◽  
Single Step ◽  
Synthesis And Characterization ◽  
Narrow Size Distribution ◽  
X Ray ◽  
Polymeric Particles ◽  
X Ray Imaging

Synthesis and Characterization of III-V Rod Shape Semiconductor Nanocrystals

2005 ◽  
Vol 494 ◽  
pp. 121-128
Author(s):  
J.M. Nedeljković ◽  
O.I. Mićić ◽  
S.P. Ahrenkiel ◽  
A.J. Nozik
Keyword(s):  
Size Distribution ◽  
Semiconductor Nanocrystals ◽  
Synthesis And Characterization ◽  
Lateral Growth ◽  
Narrow Size Distribution ◽  
Free Standing ◽  
Quantum Rods ◽  
Metallic Catalyst ◽  
Strong Confinement

InP and InAs quantum rods were synthesized via the reactions of monodispersed indium droplets with phosphide or arsenide ions, respectively. In these reactions indium droplets, which do not act as a catalyst but rather as a reactant, are completely consumed. For the synthesis of InP and InAs quantum rods with a narrow size distribution, a narrow size distribution of indium particles is required because each indium droplet serves as a template to strictly limit the lateral growth of individual InP or InAs nanocrystals. Free-standing InP (130 Å diameter and 870 Å length) and InAs (180 Å diameter and 745 Å length) quantum rods without residual metallic catalyst at the rod tip were synthesized from the diluted transparent solutions of metallic indium. Both kinds of synthesized nanorods are in the strong confinement regime since the Bohr diameters of InP and InAs are 200 and 700 Å, respectively.

Sign in / Sign up

Export Citation Format

Share Document