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.
Sol-gel silica films embedding NIR-emitting Yb-quinolinolate complexes
ARTIZZU, FLAVIA;
2014-01-01
Abstract
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.| File | Dimensione | Formato | |
|---|---|---|---|
|
1.4900454.pdf
file disponibile solo agli amministratori
Dimensione
588.15 kB
Formato
Adobe PDF
|
588.15 kB | Adobe PDF | Visualizza/Apri Richiedi una copia |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
