Two-photon absorption induced luminescence of in-association europium(III) complexes

Abstract

Abstract:

A new kind of europium-orgainc complex Eu(tta)4•DEASP was synthesized, in which the cation DEASP can play the role of two-photon sensitizer for Eu3+. The two-photon sensitization wavelength of Eu3+ was extended to 1.06 μm. Furthermore, a series ramification of DEASP were synthesized. The analysis on the structure-property relationships demonstrated the following results. Changing the cation only by substituting the terminal donor group, the two-photon sensitization efficiency can be improved evidently. And, this kind of europium complex can be hopefully applied in the field of biological imaging.

Key words: nonlinear optics, europium complex, ion association, two-photon absorption

CLC Number:

O657.3

SHI Meng, LI Hua, SU Fu-fang, HAN Pei-gao, MA Li-li, WU Fu-quan. Two-photon absorption induced luminescence of in-association europium(III) complexes[J]. J4, 2011, 28(2): 172-177.

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