Abstract:
:The photoluminescence features of Eu(3+)-, Tb(3+)-, Tb(3+)/Eu(3+)-alginate aerogel (hydrogel and alcogel) and Eu(3+)-alginate xerogel hybrids were investigated. The Eu(3+)-alginate aerogel and alcogel exhibit the highest (5)D0 quantum efficiencies (9.9 and 8.2%, respectively), while the hydrogel and xerogel have lower values (5.2 and 5.6%, respectively). The Tb(3+)/Eu(3+) 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.
journal_name
Biomacromoleculesjournal_title
Biomacromoleculesauthors
Liu F,Carlos LD,Ferreira RA,Rocha J,Gaudino MC,Robitzer M,Quignard Fdoi
10.1021/bm8002122subject
Has Abstractpub_date
2008-07-01 00:00:00pages
1945-50issue
7eissn
1525-7797issn
1526-4602journal_volume
9pub_type
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