A method of synthesizing doped semiconductor nanocrystals. In one
embodiment, the method includes the steps of combining a metal oxide or
metal salt precursor, a ligand, and a solvent to form a metal complex in
a reaction vessel; admixing an anionic precursor with the metal complex
at a first temperature, T.sub.1, sufficient to form a plurality of host
nanocrystals; doping a metal dopant onto the plurality of the host
nanocrystals at a second temperature, T.sub.2, such that a layer of the
metal dopant is formed substantially over the surface of a host
nanocrystal that receives a metal dopant; and adding a mixture having the
anionic precursor and the metal oxide or metal salt precursor at a third
temperature, T.sub.3, into the reaction vessel to allow regrowth of host
nanocrystals on the surface of the layer of the metal dopant formed
substantially over the surface of a host nanocrystal that receives a
metal dopant to form a plurality of doped nanocrystals, wherein the doped
nanocrystals show a characteristic of semiconductor.