Band Formation from Coupled Quantum Dots Formed by a Nanoporous Network on a Copper Surface

Abstract

Coupled Copper Surface States Periodic arrays of quantum dots can create new electronic states that arise from coupling of the states created by confinement. Lobo-Checa et al. (p. 300 ) show that the electronic surface-state of copper can be converted into a regular array of quantum dots. An organic overlayer that is created on the copper surface has pores 1.6 nanometers in diameter that trap the surface states. The coupling of these trapped states is revealed in photoemission experiments, in which a shallow dispersive electronic band is formed.