title: gamma-Radiation Synthesis of the Nanocrystalline Semiconductors PbS and CuS.
abstract: The nanocrystalline semiconductors PbS and CuS were prepared by gamma-irradiation at room temperature in an ethanol system for the first time. Carbon disulfide was used as the sulfur source; lead acetate and copper chloride were used as metal ion sources. X-ray Powder Diffraction was used to characterize the products and Transmission Electron Microscopy to determine their morphology. The purity and compositions of the products were examined by X-ray photoelectron spectra. The photoluminescence property of as-prepared PbS was studied. A blue shift was observed in the PL spectra, indicating the quantum size effect on nanocrystalline PbS. Copyright 1999 Academic Press.
authors.affiliation: Structure Research Lab, University of Science & Technology of China, Hefei, Anhui, 230026, People's Republic of China
authors.initials: ZP
authors.lastname: Qiao
authors.initials: Y
authors.lastname: Xie
authors.initials: JG
authors.lastname: Xu
authors.initials: YJ
authors.lastname: Zhu
authors.initials: YT
authors.lastname: Qian