title: Colloidal synthesis of infrared-emitting germanium nanocrystals.
abstract: In this study, we synthesized Ge nanocrystals and studied the effects of variables such as solvents, reducing agents, reaction temperature, and capping ligands. The resulting nanocrystals showed infrared photoluminescence with quantum yields as high as approximately 8% and enhanced resistance to oxidation. Size analysis of the samples by transmission electron microscopy revealed that the size dependence of the emission is consistent with the effects of quantum confinement.
authors.affiliation: Chemistry Division, C-PCS, MS-J567, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
authors.forename: Doh C
authors.initials: DC
authors.lastname: Lee
authors.forename: Jeffrey M
authors.initials: JM
authors.lastname: Pietryga
authors.forename: Istvan
authors.initials: I
authors.lastname: Robel
authors.forename: Donald J
authors.initials: DJ
authors.lastname: Werder
authors.forename: Richard D
authors.initials: RD
authors.lastname: Schaller
authors.forename: Victor I
authors.initials: VI
authors.lastname: Klimov