Near-infrared (NIR) luminescent PMMA-based hybrid materials doped with Ln-β-diketonate (Ln = Nd or Yb) complexes

In the obtained PMMA-supported hybrid materials PMMA@[Ln(L)3(H2O)2] (Ln = Nd, Yb or Er), the immobilization of [Ln(L)3(H2O)2] luminescent species via physical and chemical interactions within polymeric PMMA matrix also acting as the co-sensitizer, endows the enhanced NIR luminescent properties (Φem = 0.85-0.97%) in comparison to the individual Ln3 +-β-diketonate complex (Φem = 0.53-0.79%) besides the improved thermal-stability and mechanical properties.