L. Xu et al., SURFACE MODIFICATION AND ENHANCEMENT OF LUMINESCENCE DUE TO QUANTUM EFFECTS IN COATED CDSE CUSE SEMICONDUCTOR NANOCRYSTALS/, JPN J A P 1, 37(6A), 1998, pp. 3491-3494
We report a new and low cost method to synthesize colloidal CdSe and c
oated CdSe/CuSe nanocrystals in aqueous solution. The results of struc
tural characterization and optical measurements indicated that the goo
d size control had been achieved. The photoluminescence study confirme
d the surface passivation of CdSe core with CuSe outlayer and revealed
strong enhancement of baud-edge luminescence due to the quantum confi
nement in coated CdSe/CuSe nanocrystals.