Chemistry and Physics Faculty Articles
Title
Enhancing Luminescence in Lanthanide Coordination Polymers Through Dilution of Emissive Centers
Document Type
Article
Publication Date
5-2018
Publication Title
Journal of Luminescence
Keywords
Lanthanide, Antenna effect, Coordination polymer, Doping
ISSN
0022-2313
Volume
197
First Page
412
Last Page
417
Abstract
A Ln-adipate metal-organic framework templated with 4,4′-bipyridine (GWMOF-6) was synthesized with Eu(III) or Tb(III) ions with various concentrations of optically inert Gd(III) ion in order to evaluate the effects of diluting the emissive metal center on the efficiency of luminescence. The doping ratios of Ln:Gd (Ln = Eu or Tb) showed that of the ratios studied, the 50:50 system had among the highest quantum yields (Eu = 3.9%, Tb = 7.6%) with increasing lifetimes as Gd(III) concentration increased. A 50:50 Eu:Tb system was also synthesized and showed to be more efficient than the Eu:Gd systems (Φ = 15.3%), with an exceptionally high energy transfer efficiency (80%) from the 5D4 state of the Tb(III) ion to the 5D1 and 5D0 energy levels of the Eu(III) ion.
NSUWorks Citation
Einkauf, J. D., Rue, K. L., Ten Hoeve, H. A., & de Lill, D. T. (2018). Enhancing Luminescence in Lanthanide Coordination Polymers Through Dilution of Emissive Centers. Journal of Luminescence, 197, 412 - 417. https://doi.org/10.1016/j.jlumin.2018.01.045. Retrieved from https://nsuworks.nova.edu/cnso_chemphys_facarticles/253
ORCID ID
0000-0003-0891-7246
DOI
10.1016/j.jlumin.2018.01.045
Comments
©2018 Elsevier B.V. All rights reserved.