title: One-step synthesis of PbSe-ZnSe composite thin film.
abstract: This study investigates the preparation of PbSe-ZnSe composite thin films by simultaneous hot-wall deposition (HWD) from multiple resources. The XRD result reveals that the solubility limit of Pb in ZnSe is quite narrow, less than 1 mol%, with obvious phase-separation in the composite thin films. A nanoscale elemental mapping of the film containing 5 mol% PbSe indicates that isolated PbSe nanocrystals are dispersed in the ZnSe matrix. The optical absorption edge of the composite thin films shifts toward the low-photon-energy region as the PbSe content increases. The use of a phase-separating PbSe-ZnSe system and HWD techniques enables simple production of the composite package.
authors.affiliation: Research Institute for Electric and Magnetic Materials, Sendai 982-0807, Japan. abe@denjiken.ne.jp.
authors.forename: Seishi
authors.initials: S
authors.lastname: Abe