The DOI matches its Crossref record; 13 of the 13 references it cites were found in a registry or an index.
Luminescence Behavior of Sol−Gel-Derived Hybrid Materials Resulting from Covalent Grafting of a Chromophore Unit to Different Organically Modified Alkoxysilanes
Abstract
The compounds studied in this work are sol−gel-derived organic−inorganic hybrid materials in which the two components are covalently linked via Si−C bonds. The organic part is a chromophore group derived from dipicolinic acid that is functionalized with trialkoxysilyl groups; the as-obtained silylated monomers are afterward submitted to complexation with rare-earth ions (Eu 3+, Gd 3+ ) and are used as the siloxane network precursors. The preparation of hybrid materials including covalent grafting and the sol−gel process is described, as well as their luminescence properties. Modifications of the ligand structure (mono- or disubstituted amides) lead to different coordinating properties and to variable absorption edges. As a result, the absorption efficiency or the ability of the chelates to transfer the absorbed energy to Ln 3+ and consequently the quantum yield of the emission are changed. The major effect of silica is a broadening of the emission peaks, whereas spectral repartitions and lifetimes are mainly unchanged as compared with the corresponding organic molecules.
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Cites
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Lanthanide-Based Luminescent Hybrid Materials
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Highly Efficient Fluorescent Material Based on Rare-Earth-Modified Polyhydroxyalkanoates
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Metadata
- Authors
- Franville, A.-C., Zambon, D., Mahiou, R., & Troin, Y.
- Venue
- Chemistry of Materials
- Publisher
- American Chemical Society (ACS)
- Published
- 2000-01-04
- Volume
- 12
- Issue
- 2
- Pages
- 428-435
- ISSN
- 0897-4756 (ISSN-L)
- 1520-5002
- OpenAlex
- W2074840661
- Cited by
- 306
- References
- 13
- FWCI
- 7.93
- Type
- journal article
- Language
- en
- Open access
- closed
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