Abstract
The origin of the spectra of rare earth ions arising from f → f and f → d transitions is discussed. The parity-forbidden luminescence of lanthanide ions can be strongly intensified by excitation via molecules characterized by high transition probabilities. Such behaviour opens a route for creation of a class of new sophisticated materials. Luminescent materials based on heteroaromatic lanthanide cryptates are attractive as labels for advanced time-resolved fluoroimmunoassays and molecular markers, their potential use is also conceivable in the field of luminescent displays, molecular photonics and highly luminescent materials in hybrid organic/inorganic glasses. The recent findings of lanthanide complexes trapped in solgel inorganic glasses based on silica and zirconia networks are discussed and the theoretical basis of their spectroscopy is presented.
Original language | English |
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Pages (from-to) | 5-18 |
Number of pages | 14 |
Journal | Materials Science-Poland |
Volume | 20 |
Issue number | 2 |
State | Published - 2002 |
Keywords
- Electronic spectra
- Rare earths