Mechanochemical synthesis and physico_chemical investigations of new materials for gas sensors

6th International Conference: Modern Technologies for Non-Destructive Testing

Shubenkova, E.G.^1

Omsk State Technical University, Omsk, Russia^1

关键词: Binary semiconductors;    Mechanochemical synthesis;    Mechanochemical treatment;    Physico-chemicals;    Radiation intensity;    Semiconductor systems;    Spectral distribution;    Spectral radiation;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/289/1/012043/pdf
DOI  :  10.1088/1757-899X/289/1/012043

来源: IOP

【 摘 要 】

Solid solutions of the InSb-ZnTe semiconductor system containing up to 20 mol.% of ZnTe were synthesized for the first time. The role of mechanochemical treatment in the process of obtaining solid solutions of this system is shown. Solid solutions in the InSb-ZnTe system have been identified by Raman spectroscopy, and the optical properties of its components have been studied. On the basis of an analysis of the anti-stokes spectral radiation distribution the solid solutions formation was identified both on the dependence of the spectral distribution maximum's shift on the composition of the InSb1-x-ZnTexsystem, and by estimating the radiation intensity of the initial binary semiconductors at frequencies corresponding to the LO- and TO- vibrations of the binary compounds crystal lattice. The values of the band gap for InSb, (InSb)0.95(ZnTe)0.05and (InSb)0.9(ZnTe)0.1were calculated, their values were 0.22 eV, 0.30 eV and 0.38 eV, respectively.