We report some results pertaining to the magnetic, optical and topographic
properties of electrochemically self-assembled quantum dots. Some of these
dots self-order into two-dimensional hexagonal-close-packed arrays that are
among the most periodic reported so far. We will review nonlinear optical
properties of self-assembled CdS quantum dots and present new results perta
ining to the nanomagnetic properties of cobalt dots. These structures may h
ave important applications in magnetics, electronics and nonlinear optics.