The emission of CulnSe2-based laser ablation plasma has been investigated at a distance of I mm from the target surface. The plasma was formed by radiation of the neodymium laser （5 ×10^8 W.cm^-2; 1,064 nm; 20 n...The emission of CulnSe2-based laser ablation plasma has been investigated at a distance of I mm from the target surface. The plasma was formed by radiation of the neodymium laser （5 ×10^8 W.cm^-2; 1,064 nm; 20 ns; 12 Hz）. The temporal dynamics have been obtained for the plasma parameters, such as the population of excited states of atoms, electron temperature and density. Two peaks were observed in the temporal profile of the population of excited states. The temporal dependence of electron temperature was singly peaked. During the time interval of 0-300 ns, the electron temperature varied in the range of 1.6-1.2 eV and the density of electrons varied in the range of 1.3 × 10^16 cm^-3 to 9 × 10^14 cm^-3. It has been established that at the selected conditions of plasma formation saved ratio of copper and indium, which correspond to stoichoimetric target composition.展开更多
文摘The emission of CulnSe2-based laser ablation plasma has been investigated at a distance of I mm from the target surface. The plasma was formed by radiation of the neodymium laser （5 ×10^8 W.cm^-2; 1,064 nm; 20 ns; 12 Hz）. The temporal dynamics have been obtained for the plasma parameters, such as the population of excited states of atoms, electron temperature and density. Two peaks were observed in the temporal profile of the population of excited states. The temporal dependence of electron temperature was singly peaked. During the time interval of 0-300 ns, the electron temperature varied in the range of 1.6-1.2 eV and the density of electrons varied in the range of 1.3 × 10^16 cm^-3 to 9 × 10^14 cm^-3. It has been established that at the selected conditions of plasma formation saved ratio of copper and indium, which correspond to stoichoimetric target composition.
