A step toward making and wiring up molecular-scale devices

For over two decades scientists have been exploring ideas for creating "mol ecular electronic" devices. The aim has been to make functional units consi sting of a very small number of molecules, perhaps only one molecule, that are capable of switching a current. Many such elements could then be combin ed to create computers and other electronic circuits. The hope has been tha t this approach will lead to the ultimate miniaturization of devices as wel l as to optimal operating efficiency and the lowest cost. While this scenar io remains little more than a dream, some key steps have recently been made . Here, I outline some back-ground information, and as well, briefly review some recent developments front our lab.