Relatively monodisperse, highly luminescent zinc blende ZnSe nanocryst
als are synthesized in a hexadecylamine/trioctylphosphine coordination
solvent. The controlled growth process affords tunable sample sizes.
Pure band-edge fluorescence size-tunable between 2.8 and 3.4 eV is obt
ained at room temperature with quantum yields between 20% and 50% rela
tive to Stilbene 420.