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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/48109

Title: Photosensized Controlling Benzyl Methacrylate-Based Matrix Enhanced Eu3+ Narrow-Band Emission for Fluorescence Applications
Authors: Wen-Bin Liau
Jiann-Fong Lee
Hsuen-Li Chen
Geneh-Siang Lee
Shao-Chin Tseng
Mei-Hsiang Lin
Contributors: 國立臺灣海洋大學:光電科學研究所
Keywords: optical tuning
UV-curing
europium complex
fluorescence detection
metal-ion chelating
Date: 2012-03
Issue Date: 2018-08-13T03:29:19Z
Publisher: International Journal of Molecular Sciences
Abstract: Abstract: This study synthesized a europium (Eu(3+)) complex Eu(DBM)(3)Cl-MIP (DBM = dibenzoyl methane; Cl-MIP = 2-(2-chlorophenyl)-1-methyl-1H-imidazo[4,5-f][1,10]phenanthroline) dispersed in a benzyl methacrylate (BMA) monomer and treated with ultraviolet (UV) light for polymerization. Spectral results showed that the europium complex containing an antenna, Cl-MIP, which had higher triplet energy into the Eu(3+) energy level, was an energetically enhanced europium emission. Typical stacking behaviors of π-π interactions between the ligands and the Eu(3+)-ion were analyzed using single crystal X-ray diffraction. Regarding the luminescence performance of this europium composite, the ligand/defect emission was suppressed by dispersion in a poly-BMA (PBMA) matrix. The underlying mechanism of the effective enhancement of the pure Eu(3+) emission was attributed to the combined effects of structural modifications, defect emissions, and carrier charge transfer. Fluorescence spectra were compared to the composite of optimized Eu3+ emission where they were subsequently chelated to four metal ions via carboxylate groups on the BMA unit. The optical enhanced europium composite clearly demonstrated highly efficient optical responses and is, therefore a promising application as an optical detection material.
Relation: 13(3) pp.3718-3737
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/48109
Appears in Collections:[光電科學研究所] 期刊論文

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