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(A): Normalized visible emission of trinuclear bimetallic [Eu2Tb] under 280 nm (blue), 366 nm (purple) and 395 nm (green) excitation in the solid state at 20 K. (B): Normalized visible emission from [Eu2Tb] at 20—298 K across the same set of excitations. Data are normalized at each temperature relative to the emission maximum (∼701 nm @ λex = 280 nm).
