Density of vibrational states of thiol capped CdS particles. Inelastic neutron scattering

Colloidal semiconductor species are currently under intense investigation as examples of nonmolecular materials that demonstrate a quantum confinement effect [1]. The species particle size is a few nanometers, so surface atoms constitute a significant part of the materials and the interface between the particle core and the surrounding effects greatly their properties. An INS study of the surface zone vibrations is presented. © 1994.