Evidence of broad emission band in the system MgGa₂O₄-Ga₂O₃ doped with Cr³⁺ ions

TY - JOUR

T1 - Evidence of broad emission band in the system MgGa2O4-Ga2O3 doped with Cr3+ ions

AU - da Silva, M.A.F.M.

AU - Carvalho, I.C.S.

AU - Cella, N.

AU - Sosman, L.P.

AU - Nunes Bordallo, Heloisa

PY - 2013/1/1

Y1 - 2013/1/1

N2 - We present the photoluminescence, excitation and photoacoustic spectra at room temperature of the system MgGa2O4-Ga 2O3 doped with Cr3+. The samples were prepared by solid state reaction and their formation was verified by X-ray diffraction. The emission spectra exhibit broad bands in the red and infrared regions associated to Cr3+ with octahedral coordination. The excitation as well as the photoacoustic spectra show broad and intense bands in the visible region, all associated to Cr3+ ions in octahedral sites, making this material interesting for future practical applications.

AB - We present the photoluminescence, excitation and photoacoustic spectra at room temperature of the system MgGa2O4-Ga 2O3 doped with Cr3+. The samples were prepared by solid state reaction and their formation was verified by X-ray diffraction. The emission spectra exhibit broad bands in the red and infrared regions associated to Cr3+ with octahedral coordination. The excitation as well as the photoacoustic spectra show broad and intense bands in the visible region, all associated to Cr3+ ions in octahedral sites, making this material interesting for future practical applications.

U2 - 10.1016/j.optmat.2012.10.008

DO - 10.1016/j.optmat.2012.10.008

M3 - Journal article

SN - 0925-3467

VL - 35

SP - 543

EP - 546

JO - Optical Materials

JF - Optical Materials

IS - 3

ER -