Influence of some selected organic molecules on intensity of luminescence of TiO<sub>2</sub>:Eu electrodes期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Influence of some selected organic molecules on intensity of luminescence of TiO₂:Eu electrodes

Authors:	P.M. Sirimanne Yi-Bing Cheng

Affiliation:	^a Nano-Science Laboratory, Institute of Fundamental Studies, Hantana Road, Kandy, Sri Lanka ^b Department of Materials Engineering, Monash University, Clayton 3800, Victoria, Australia

Abstract:	Eu³⁺ ions are anchored on TiO₂ matrix by coupling with 2,2′-bipyridyl 4,4′-dicarboxylic acid. Five different luminescence centers are observed for TiO₂\|2,2′-bipyridyl 4,4′-dicarboxylic acid\|Eu³⁺ electrodes due to electron transitions between d and f orbitals. Photo-luminescence of TiO₂\|2,2′-bipyridyl 4,4′-dicarboxylic acid\|Eu³⁺ electrodes is increased by attaching 2-thenoyltrifluoroacetone to Eu³⁺ ions. Immersion of TiO₂\|2,2′-bipyridyl 4,4′-dicarboxylic acid\|Eu³⁺\|2-thenoyltrifluoroacetone electrodes in propylsulfide is found to be further increased intensities of luminescence bands by a factor of three.

Keywords:	TiO₂ 2-thenoyltrifluoroacetone 2, 2&prime -bipyridyl 4, 4&prime -dicarboxylic acid Propylsulfide
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