Upconverted Photosensitization of Tb Visible Emission by NIR Yb Excitation in Discrete Supramolecular Heteropolynuclear Complexes

摘要

Addition of Tb~(3+) salts to a solution of a (YbL_D) complex in D_2O resulted in the formation of [(YbL_D)_2Tb_x] (x = 1 to 3) complexes that, upon NIR excitation at 980 nm, showed an unprecedented Yb to Tb upconversion sensitization phenomenon resulting in the observation of the typical green emission of Tb.