Synthesis and luminescence properties of mesophase silica thin films doped with in-situ formed europium complex

Autor:	Byeong-Soo Bae, JungHoon Shin, Kiseok Suh, Dan Zhao, Seok-Jun Seo
Rok vydání:	2008
Předmět:	Photoluminescence Materials science Biophysics Mesophase Mineralogy chemistry.chemical_element General Chemistry Condensed Matter Physics Biochemistry Atomic and Molecular Physics and Optics Crystallography chemistry Thin film Ternary operation Hybrid material Luminescence Europium Ternary complex
Zdroj:	Journal of Luminescence. 128:565-572
ISSN:	0022-2313
DOI:	10.1016/j.jlumin.2007.08.012
Popis:	Mesophase silica thin film doped with in-situ formed ternary Eu complex was synthesized by adding ligands (DBM=dibenzoylmethane, phen=1,10-phenanthroline), Eu ions (EuCl 3 ·6H 2 O), and Pluronic P123 triblock copolymer into hydrolyzed tetramethoxy-silane (TMOS). The structure of this inorganic/organic film was characterized as a 2d-hexagonal structure by X-ray diffraction (XRD) and TEM analysis. The excitation spectra ( λ em =612 nm) and emission spectra ( λ ex =325 nm) indicated that the ternary complex, Eu–DBM–phen, was formed in-situ during the formation of the film. The mesophase silica thin film doped with the in-situ formed Eu complex showed a higher quantum efficiency compared to a pure Eu(DBM) 3 phen complex and a mesophase silica thin film doped with in-situ formed binary Eu–phen complex.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f8e90918e0dfb5947112f4ef6ed54e75 https://doi.org/10.1016/j.jlumin.2007.08.012 Zobrazit plný text záznamu Full Text from ScienceDirect