Abstract
Time decay of fluorescence of tris(8-hydroxyquinoline) aluminum (Alq3) and tris(ruthenium bipyridyl chloride) (Rubpy) in silica, zirconia, tin oxide and ormocer films prepared by the sol-gel method were studied by laser induced fluorescence. The lifetimes of Rubpy are unchanged in the presence of Alq3 while the lifetimes of the Alq3 are decreased in the co-doped species as a result of electron transfer or non-radiative energy transfer between Alq3 and Rubpy. The energy transfer is reflected also by overlap between absorption of Rubpy and emission of Alq3.
Original language | English |
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Pages (from-to) | 1710-1714 |
Number of pages | 5 |
Journal | Optical Materials |
Volume | 30 |
Issue number | 11 |
DOIs | |
State | Published - Jul 2008 |
Keywords
- 74.25.Gz
- 81.20.Fw
- 87.64.N
- Alq
- Fluorescence lifetime
- Optical properties
- Rubpy
- Sol-gel process