Ion beam synthesis of CdS, ZnS, and PbS compound semiconductor nanocrystals

摘要

Sequential ion implantation followed by thermal annealing has been used to form encapsulated CdS, ZnS, and PbS nanocrystals in SiO(sub 2) and Al(sub 2)O(sub 3) matrices. In SiO(sub 2), nanoparticles are nearly spherical and randomly oriented, and ZnS and PbS nanocrystals exhibit a bimodal size distribution. In Al(sub 2)O(sub 3), nanoparticles are faceted and coherent with the matrix. Initial photoluminescence (PL) results are presented.