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 |
Autori: | |
Data di pubblicazione: | 2014 |
Rivista: | |
Handle: | http://hdl.handle.net/11584/78480 |
ISBN: | 978-0-7354-1261-3 |
Tipologia: | 4.1 Contributo in Atti di convegno |
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