Impurity optical absorption of SbSeI:Ni single crystals

摘要

Single crystals of SbSeI:Ni were grown by the Bridgman technique. The impurity optical absorption spectra of these single crystals were investigated at room temperature. We observed impurity optical absorption peaks at 4334, 7763, 8857, 8952, and 11thinsp;587 cmminus;1due to nickel impurity. These impurity optical absorption peaks are assigned to the electronic transitions from the ground state3T1(3F) to the excited states3T2(3F),3A2(3F),1T2(1D),1E(1D), and3T1(3P) of Ni2+ions sited atTdsymmetry of the SbSeI host lattice.