Photoluminescence Properties of Europium Complexes Encapsulated into MSBA-15

Su Wen Li; Ming Yue

doi:10.4028/www.scientific.net/AMR.760-762.483

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 760-762Photoluminescence Properties of Europium Complexes...

Photoluminescence Properties of Europium Complexes Encapsulated into MSBA-15

Abstract:

The Eu complexes-Eu (TTA)₃phen (TTA: thenoyltrifluoroacetone, phen: 1,10-phenanthroline) were encapsulated, uniformly distributed into the channels of the modified SBA-15 (labeled with MSBA-15), and structurally characterized. The photoluminescence properties of the encapsulated complexes were systematically studied in contrast to the pure complexes. The results indicate that the excitation bands assigned to the π-π* electron transition of the ligands for Eu³⁺ complexes in encapsulated complexes were split into different components, and the ⁵D₀-⁷F₀ transitions became partly allowed. The emission lines for the ⁵D₀-⁷F₂ transitions became broader and the relative intensity for different crystal field components varied greatly in comparison to the pure complex. Most importantly, the photostability and thermostability of the emissions improved considerably.

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Periodical:

Advanced Materials Research (Volumes 760-762)

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483-486

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.760-762.483

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Online since:

September 2013

Authors:

Su Wen Li, Ming Yue

Keywords:

Europium Complex, MSBA-15, Photoluminescence (PL), Stability

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