Sol-gel silica thin films embedding an ytterbium quinolinolato complex (YbClQ4YbClQ4) have been obtained using different alkoxides. Homogeneous, crack- and defect-free thin films of optical quality have been successfully deposited on glass substrate by dip-coating. The silica thin films have been characterized by time-resolved photoluminescence. The luminescence properties of the YbClQ4YbClQ4 are preserved in silica films prepared through an optimized sol-gel approach. The excited state lifetime of the lanthanide is comparable to those observed in bulk and longer than the corresponding ones in solution.
|Titolo:||Sol-gel silica films embedding NIR-emitting Yb-quinolinolate complexes|
|Data di pubblicazione:||2014|
|Tipologia:||4.1 Contributo in Atti di convegno|