ELECTROCHEMICALLY ASSEMBLED QUASI-PERIODIC QUANTUM-DOT ARRAYS

We describe two electrochemical self-assembly processes for producing highly ordered quasi-periodic arrays of quantum dots on a surface. The advantages of these techniques are: (i) they are 'gentle' and do not cause radiation damage to nanostructures unlike beam lithography, (ii) they have high throughput and are amenable to mass production unlike direct-write lithography, (iii) structures can be delineated on non-pl anar substrates, and (iv) the techniques are potentially orders of mag nitude cheaper to implement than conventional nanosynthesis. Samples p roduced by these techniques have been characterized by microscopy, opt ical and transport measurements, Auger and x-ray. These measurements r eveal intriguing properties of the nanostructures. In this paper, we d escribe our initial results and show the promise of such techniques fo r low-cost and high-yield nanosynthesis.