论文信息 - Origin of visible photoluminescence in NiO and NicMg1-cO single crystals

Origin of visible photoluminescence in NiO and NicMg1-cO single crystals

A study of the visible photoluminescence in single-crystal NiO and NicMg1-cO (c = 0.99, 0.98 and 0.95) solid solutions is presented for the first time. Two wide luminescence bands, peaked at approximately 12000 cm-1 and approximately 18500 cm-1, were observed. The dependence of their intensity and position on the excitation energy, temperature, and composition were investigated. We attribute the origin of two photoluminescence bands to the impurity- or defect perturbed Ni2+ excitons.

[1] J. V. D. Boomgaard,et al. Absorption and fluorescence of solid solutions MgO-NiO , 1952 .

[2] Giebultowicz,et al. Magnetic structures of fcc systems with nearest-neighbor and next-nearest-neighbor exchange interactions. , 1988, Physical review. B, Condensed matter.

[3] L. Johnson,et al. Phonon-Terminated Optical Masers , 1966 .

[4] V. Berbenni,et al. Structural Characterization of Nickel Oxide , 1991 .

[5] J. Ralph,et al. Near‐Infrared Fluorescence and Absorption Spectra of Co2+ and Ni2+ in MgO , 1968 .

[6] Feng,et al. Phase diagram and magnetic properties of the diluted fcc system NipMg1-pO. , 1992, Physical review. B, Condensed matter.

[7] A. G. Klimenko,et al. MAGNETIC PHASE DIAGRAM OF (NI1-XMGX)O SOLID SOLUTIONS , 1991 .

[8] S. Hüfner,et al. Electronic structure of NiO and related 3d-transition-metal compounds , 1994 .