The preparation of polymer nanocomposites consisting of poly(vinyl) alcohol (PVA) network and RE3+:Y2Si2O7 nanocrystalline particles (RE=Yb, Er) is presented. The optical properties of the nanocomposite were preliminarily studied. In particular, efficient upconversion was observed in Er3+ and Yb3+ codoped Y2Si2O7 nanoparticles embedded in the polymeric PVA host. It was found that the luminescence features of the RE3+:Y2Si2O7 nanoparticles were affected by the polymeric host, resulting in a shortening of the luminescence lifetimes. This effect is discussed in terms of effective refractive index.
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.