TITLE

Strong photoluminescence and cathodoluminescence due to f–f transitions in Eu[sup 3+] doped Al[sub 2]O[sub 3] powders prepared by direct combustion synthesis and thin films deposited by laser ablation

AUTHOR(S)
Rakov, Nikifor; Ramos, Francisco E.; Hirata, Gustavo; Xiao, Mufei
PUB. DATE
July 2003
SOURCE
Applied Physics Letters;7/14/2003, Vol. 83 Issue 2, p272
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
In this letter, we report on fabrication and luminescent properties of phosphor powders and thin films of Eu31doped alumina Al[SUB2]O[SUB3]. The powders were fabricated by combustion synthesis process at a low temperature, 280 °C and showed strong photoluminescent and cathodoluminescent emissions. Powders of Eu[SUP3+] doped Al[SUB2]O[SUB3] of concentration 1.0 mol % were deposited on quartz-glass substrates to form thin films by means of laser ablation. Under ultraviolet excitation and electron beam excitation, these samples containing microcrystalline structures showed strong luminescence due to f - f transitions, and the dominant transition was the hypersensitive 5D[SUB0] → [SUP7]F[SUB2] red emissionof Eu[SUP3+].
ACCESSION #
10220435

 

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