Enhancement of Tb3+ emission by non-radiative energy transfer from Dy3+ in silicate glass

Abstract A study of energy transfer was performed in dysprosium–terbium-doped silicate glasses at room temperature. Enhancement of the Tb 3+ emission and a decrease in the Dy 3+ emission are observed as a result of energy transfer from Dy 3+ ions to Tb 3+ ions. The energy transfer efficiencies, transfer probabilities, as well as average donor–acceptor distances were also calculated. It is concluded that the energy transfer mechanism between Dy 3+ and Tb 3+ ion is mainly electric dipole–dipole in nature.

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