Synthesis and Luminescent Properties of Microsheets Europium Doped La(TTA)₃Phen Coordination Polymer Prepared by Interfacial Self-Crystal Growth

Abstract

A three-dimensional sheet-like micromaterial Eu_0.15La_0.85 (TTA)₃phen has been synthesized by the oil-water interfacial self-crystal growth method at room temperature without the assistance of any surfactant, catalyst, or template. The resulting micromaterial consists of uniform microsheets with a length of 500–800 nm, width of 300–400 nm, and thickness of ∼80 nm. The appropriate overlap between absorption of ligand TTA and excitation of the microsheets indicated that TTA can efficiently transfer the absorbed energy to Eu³⁺. Furthermore, the maximum intensity peak was located at 613 nm, which shows the microsheets show pure red emission.

Keywords:

• energy transfer
• Europium complex
• interfacial self-assembly
• luminescence
• morphologies

Acknowledgments

This work is supported by the “One Hundred Talents” Program of CAS (Grant No. 09i4281c10), the Main Direction Program of Knowledge Innovation of Chinese Academy of Sciences KZCXZ-YW-453 “Development and Demonstration of Digital Urban Environmental Network,” and Xiamen funds for distinguished Young Scientists.