2 November 2001 Nonradiative energy transfer process in the system Sm3+: ZrO2 prepared by sol-gel technique
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Abstract
Photoluminescence (PL) of pure and 0.2 mol percent Sm3+ doped zirconium oxide prepared by the Sol-Gel process and annealed at 1000 degrees C to stabilize the monoclinic phase were performed. The experimental spectra suggest the presence of energy transfer pro9cesses between the host and the dopant when the host was excited with a signal centered at 320 nm. The Sm3+ doped monoclinic zirconium oxide shows strong emission at the green and red bands, corresponding to the 4G5/2 yields 6H5/2 and 4G5/2 yields 6H7/2 samarium transition, respectively; whereas the undoped sample only shows a broad band emission centered at 495 nm. The main mechanism that allows the samarium emission under UV-excitation appears to be non-radiative energy transfer from the ZoO2 host to the Sm3+ ions.
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Elder de la Rosa-Cruz, Elder de la Rosa-Cruz, Luis A. Diaz-Torres, Luis A. Diaz-Torres, Ajith Kumar, Ajith Kumar, Maximiliano Avendano, Maximiliano Avendano, Pedro Salas, Pedro Salas, V. Castano Meneses, V. Castano Meneses, Jose Manuel Hernandez, Jose Manuel Hernandez, } "Nonradiative energy transfer process in the system Sm3+: ZrO2 prepared by sol-gel technique", Proc. SPIE 4452, Inorganic Optical Materials III, (2 November 2001); doi: 10.1117/12.446890; https://doi.org/10.1117/12.446890
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