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Article Dans Une Revue Biomacromolecules Année : 2008

Photoluminescent Porous Alginate Hybrid Materials Containing Lanthanide Ions

Résumé

The photoluminescence features of Eu3+-, Tb3+-, Tb3+/Eu3+-alginate aerogel (hydrogel and alcogel) and Eu3+-alginate xerogel hybrids were investigated. The Eu3+-alginate aerogel and alcogel exhibit the highest 5D0 quantum efficiencies (9.9 and 8.2%, respectively), while the hydrogel and xerogel have lower values (5.2 and 5.6%, respectively). The Tb3+/Eu3+ hybrids are multiwavelength emitters in which the emission color can be tuned across the chromaticity diagram from the red toward the yellowish-green spectral regions, crossing the white area by selecting the excitation wavelength.
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Dates et versions

hal-00305197 , version 1 (23-07-2008)

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Fengyi Liu, Luis D. Carlos, Rute Sá Ferreira, João Rocha, Maria Concetta Gaudino, et al.. Photoluminescent Porous Alginate Hybrid Materials Containing Lanthanide Ions. Biomacromolecules, 2008, 9, pp.1945-1950. ⟨10.1021/bm8002122⟩. ⟨hal-00305197⟩
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