Abstract
Photosensitization of samarium (Sm) ions by silver (Ag) ions was achieved by simultaneously doping Sm and Ag in zeolite A cages. Photoluminescence (PL) from the 4G2/5 → 6H2/7 transition of Sm ions at 600 nm was found to be more than 30 times enhanced by the presence of Ag ions. The excitation wavelength dependence of the PL intensity coincided well with the absorption spectra of Ag ions in the ultraviolet region, indicating that Sm ions are excited by the energy transfer from Ag ions.
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