Assembly and Characterization of Rare-earth-containing Polyoxometalate [Eu(P_2Mo_(17)O_(61))_2]~(17-) and Poly(allylamine hydrochloride) Multilayer Films

摘要

The ultrathin multilayer films of rare-earth-containing polyoxometalate cluster K_(17)[Eu(P_2Mo_(17)O_(61))_2] (EuPMo) and poly(allylamine hydrochloride) (PAH) have been prepared by the Layer-by-Layer(LbL) self-assembly method. The photoluminescent behavior of the films investigated at room temperature shows the Eu~(3+) characteristic emission pattern of ~5D_0→~7F_J(J = 1-4). The occurrence of the photoluminescent activity confirms the potential of creating luminescent multilayer films with polyoxometalates(POMs).