Easily processable multimodal spectral converters based on metal oxide/organic-inorganic hybrid nanocomposites.

摘要: This manuscript reports the synthesis and characterization of first organic–inorganic hybrid material exhibiting efficient multimodal spectral converting properties. The nanocomposite, made Er3+, Yb3+ codoped zirconia nanoparticles (NPs) entrapped in a di-ureasil d–U(600) matrix, is prepared by an easy two-step sol-gel leading to homogeneous transparent materials that can be very easily processed as monolith or film. Extensive structural reveals nanocrystals 10–20 nm size are efficiently dispersed into matrix local structure not affected presence NPs. A significant enhancement refractive index with incorporation ZrO2 observed. optical study demonstrates luminescent properties both constituents perfectly preserved final hybrid. Thus, displays white-light photoluminescence from component upon excitation at UV/visible radiation also intense green red emissions Er3+- Yb3+-doped NPs after NIR excitation. dynamics processes were studied function lanthanide content thickness films. Our results indicate these hybrids represent low-cost, environmentally friendly, size-controlled, chemically stable alternative used light harvesting devices such solar concentrators, fibres sensors. Furthermore, this synthetic approach extended wide variety matrices, thus multifunctional versatile for tuneable nonlinear nanodevices.