Combustion Synthesis And Properties Of Fine-particle Fluorescent Aluminous Oxides

Content Provider	Indian Institute of Science (IISc)
Author	Kingsley, J. J. Manickam, N. Patil, K. C.
Copyright Year	1990
Abstract	Fine-particle fluorescent Al oxide materials like $Cr3^{+-}$doped $\alpha-Al_2O_3$ (ruby), $MgAl_2O_4 LaAlO_3, Y_3A_{l5}O_,$ and $Ce3^{+-}$doped $Y_3A_{l5}O_$, $LaMgAl_O_, CaAl_O_$, and CeMg$Al_O_$ were prepd. by the combustion of the corresponding metal nitrate-Al nitrate-urea carbohydrazide mixts. at 500À in 5 min. Formation of these $Cr3^{+-}$ and $Ce3^{+-}$doped Al oxides was confirmed by their characteristic x-ray diffraction, color, UV-visible and fluorescence spectra, and decay-time measurements. Ruby $(Cr^{3+-}\alpha-Al_2O_3)$ powder showed characteristic excitation bands at 406 and 548 nm and emission band at 695 nm with the decay time of 3.6 ms.
File Format	PDF
Journal	PeerReviewed
Language	English
Publisher	Indian Academy of Sciences
Publisher Date	1990-01-01
Access Restriction	Authorized
Subject Keyword	Inorganic & Physical Chemistry
Content Type	Text
Resource Type	Article