Cd(下标 1-x)Zn(下标 x)S体系红外光谱及发射率特性

The semiconductor material of Cd(subscript 1-x)Zn(subscript x)S is synthesized and the structures are characterized by XRD. The result demonstrates that the products are all hexagonal. The mixer lattice model of Cd(subscript 1-x)Zn(subscript x)S is established and the characteristic of the infrared spectrums is explained according to the model and lattice vibration theory. The infrared emissivity characteristic of Cd(subscript 1-x)Zn(subscript x)S is researched. It is manifested that the emissivity at 3~5 μm wave band is much lower than that at 8~14 μm, it is because of the infrared absorption mechanism and spectrum characteristic. The infrared emissivity decreases with the increase of the reaction temperature. It is because that with the increase of the reaction temperature, the crystal lattice distortion reduces and the lattice tends to be integrated.