Spin–Orbit Splitting Difference and Stokes Shift in Cerium3+-Activated Aluminate Phosphors

Abstract

ABSTRACT Here we discuss the spin–orbit splitting difference in the 2F7/2 and 2F5/2 ground state of Ce3+-activated XMg2Al16O27(X˭Ba, Sr) phosphors. Recently we reported the optical properties in these host materials for the SSL purpose; there was no more literature available to date on these phosphor compositions. By using Gaussian curve fit analysis, we have estimated the energy level difference in the ground state of Ce3+ and the corresponding Stokes shift, and we compare these with those observed in previously reported works in different families of Ce3+-activated oxide-based phosphors.