Detection of d-d* transitions of vanadium ions in Zn0.97V0.03Se monocrystal by optical absorption spectroscopy

By using optical absorption spectroscopy (both polarized and non-polarized radiation), we have detected for the first time the transitions corresponding to 2A2(F), 2E(D), 2T1(H), 2T2(F) and the doublet 2E, 2T2(D) of excited states of V2+ (d3) ions. In addition to this, we have observed structural details which were originated in the charge transfer process. The transition from the ground state of V2+ ions to the bottom of the conduction band was also revealed in the absorption spectrum. Detection of d*-d transitions can be useful to recalculate the parameters of the crystal field splitting (e.g. Racahs parameters) in this system.