Fabrication of Size and Shape Controlled Cadmium Oxide Nanocrystals

Tuning the size and shape of colloidal cerium oxide nanocrystals through lanthanide doping.

We present a simple method to gradually tune the size and to induce the shape change of CeO(2) nanoparticles via increasing the content of Yb(3+) doping.

Size- and shape-controlled synthesis of ZnSe nanocrystals using SeO2 as selenium precursor.

Here we report a low-cost and "green" phosphine-free route for the size- and shape-controlled synthesis of high-quality zinc blende (cubic) ZnSe nanocrystals. To avoid the use of expensive and toxic solvents such as trioctylphosphine (TOP) or tributylphosphine (TBP), SeO(2) was dispersed in 1-octadecene (ODE) as a chalcogen precursor. It has been found that the temperature and the surface ligan...

Size-controlled synthesis of magnetic CuCr2Se4 nanocrystals.

Shape, size, and assembly control of PbTe nanocrystals.

The small band gap and the large Bohr radius1 of the Pbchalcogenide enable unique optical, electrical, and chemical properties, presenting this family of materials as a good candidate for potential application in solar cells,2-4 thermoelectric (TE)5 devices, telecommunication,6 field effect transistors (FET),7 and biological imaging. Integrating Pb-chalcogenide nanostructures in these devices r...

Size- and shape-controlled GaN nanocrystals grown on Si„111... substrate by reactive epitaxy

We report the investigation of coherent GaN nanocrystals spontaneously formed by nitrogen-plasma-assisted reactive epitaxy with Ga droplets supported on the single crystalline Si3N4s0001d /Sis111d surface. The distribution of grown GaN nanocrystals, as revealed by scanning electron microscopy and cross-sectional transmission electron microscopy, is very uniform in size s,16 nmd and shape and th...