GU Shaoxuan 1.2, GUO Haitao 1, XU Qing 2, ZHAO Xiujian 1
(1. Key Laboratory of Silicate Materials Science and Engineering, Ministry of Education, 430070; 2.School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070)
Abstract: GeS2- Ga2S3－CdS chalcogenide glasses were prepared by conventional melt quenching method and their structures were investigated by mid-and far-infrared spectroscopy.The mid infrared spectra results verified that S-S homopolar bond is present and its amount increases with the increasing of Ga2S3 and CdS. Infrared cut-off edge has no obvious change with compositional evolution and several absorption bands in spectra are ascribed to the oxygen,hydrogen,H20 contamination during the glass preparation and the surface oxidation of the raw elements. The far infrared spectra results indicated that the basic structural units forming the network are [GeS4/2] and [Gas4/2] tetrahedraand some Ge(Ga)-(Ga)Ge metallic bonds are also formed. The addition of CdS will result in the change of the amount of tetrahedra in glass net
Keywords: chalcogenide glasses, melt quenchingmethod, infrared spectra