A Molecular Silicon Cluster with a Naked Vertex Atom

摘要

Silicon clusters have been the subject of intense research efforts[1] owing to the ubiquitous role of elemental silicon in a variety of electronic and optical applications, such as integrated circuits, photovoltaic cells, and optical sensors.[2] In fact, the optical properties of many silicon-based materials depend to a large extent on the presence of small- to medium-sized, partially hydrogenated clusters within the surrounding matrix of bulk silicon. Luminescence phenomena in porous silicon, for instance, have been attributed to the photoexcitation of such clusters.