The activated Zn(S, Se) phosphors are abtained by firing at 850 C for 1.5 hours in vacuum.
The activators used are Cu, Cl.
The PL spectra of Zn(S, Se): Cu phosphors can be varied from blue or green to red band spectrum consecutively as the mixing ra...
The activated Zn(S, Se) phosphors are abtained by firing at 850 C for 1.5 hours in vacuum.
The activators used are Cu, Cl.
The PL spectra of Zn(S, Se): Cu phosphors can be varied from blue or green to red band spectrum consecutively as the mixing ratio of Zn Se to ZnS is gradually increased.
The displacement of the spectrum is caused by the charge of the energy band gap of the phosphors and the energy state of Cu luminescence center within the band gap.