Photoluminescence spectrum of Gap ( N, Te , Zn ) under hydrostatic pressure was measured at 77K. Pressure coefficients for Te donor level as well as energy levels of excitons bound to N, NN1, NN3, and neutral donor Te...Photoluminescence spectrum of Gap ( N, Te , Zn ) under hydrostatic pressure was measured at 77K. Pressure coefficients for Te donor level as well as energy levels of excitons bound to N, NN1, NN3, and neutral donor Te were obtained. The pressure shifts of these levels were discussed. The zero phonon line of free exciton in Gap was observed for the first time.展开更多
The photoluminescence spectrum of N central cell potential bound exciton Nx as well as emission peak from deformation potential bound exclton have been observed under hydrostatic pressures. The variation of the electr...The photoluminescence spectrum of N central cell potential bound exciton Nx as well as emission peak from deformation potential bound exclton have been observed under hydrostatic pressures. The variation of the electron-phonon coupling and effective bound exciton radius with pressure is discussed.展开更多
文摘Photoluminescence spectrum of Gap ( N, Te , Zn ) under hydrostatic pressure was measured at 77K. Pressure coefficients for Te donor level as well as energy levels of excitons bound to N, NN1, NN3, and neutral donor Te were obtained. The pressure shifts of these levels were discussed. The zero phonon line of free exciton in Gap was observed for the first time.
文摘The photoluminescence spectrum of N central cell potential bound exciton Nx as well as emission peak from deformation potential bound exclton have been observed under hydrostatic pressures. The variation of the electron-phonon coupling and effective bound exciton radius with pressure is discussed.
