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Emission analysis of Tb3+:MgAl2O4 powder phosphor by I. Omkaram; G. Seeta Rama Raju; S. Buddhudu is a Materials Science article available to read on EtoBox.

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This paper reports the emission analysis of green-emitting Tb 3+ -doped MgAl 2 O 4 phosphors. Uniformity of the phase of the Tb 3+ -doped MgAl 2 O 4 phosphor has been checked by X-ray diffraction (XRD) technique and show common bands existing in the results of Fourier transform infrared (FT-IR). This phosphor exhibits weak blue, orange emissions and a strong emission at l exci 1⁄4 350 nm. The blue and green-orange emissions are ascribed to 5 D 3 -7 F J and 5 D 4 -7 F J (where J 1⁄4 3-6) transitions of Tb 3+ ions, respectively. These phosphors have shown a strong, more prominent green emission from 5 D 4 -7 F 5 at 543 nm. The results have indicated that MgAl 2 O 4 :Tb 3+ could be a potential candidate as agreen-emitting powder phosphor.

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Author

I. Omkaram; G. Seeta Rama Raju; S. Buddhudu

Publisher

Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0022-3697)

Published

2008

Language

EN

Field

Materials Science (Physical Sciences)