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Amino assisted Hydrothermal rare earth fluoride nanophosphors

Author: DanLianJuan
Tutor: LiuGuiXia
School: Changchun University of Science and Technology
Course: Inorganic Chemistry
Keywords: YF3 GdF3 Luminescent Nanomaterials Amino acids Hydrothermal
CLC: TB383.1
Type: Master's thesis
Year: 2011
Downloads: 66
Quote: 1
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Abstract


Because the unique electron shell structure of rare earth ions , making the rare earth luminescent materials have excellent luminescence properties and potential applications . Fluoride because of its diversity, the structural characteristics and special physical and chemical characteristics of the light-emitting materials, excellent matrix . Nanoscale rare earth luminescent materials largely depend on their structure, morphology and size , and thus controllable morphology and size of synthesized nano luminescent materials has become a hot research scientists . As a functional group of amino acids having a particular function and self -assembly , and thus can be used as a template to prepare nanomaterials in a variety of forms . This paper uses a different amino acid as surfactant , synthesized by hydrothermal method with different morphologies YF3: Eu3, GdF3: Eu3 and LaF3: Eu3 nanometer luminescent materials , and its structure and properties were characterized . In aspartame base , alanine and glutamic acid as surfactant , were synthesized by hydrothermal method by the nano- structure bundles of spindle YF3: Eu3 nano-materials, from oval rod-like structure composed of nanospheres of YF3 : Eu3 nano-materials, nano-crystalline particles composed by a spindle structure YF3: Eu3 nanomaterials. In aspartame base , alanine and glutamic acid as surfactant , were synthesized by hydrothermal method nanoparticles formed by the hole in the middle of the disc -like structure GdF3: Eu3 nano materials, nano- sheet composed of the circle discoid GdF3: Eu3 nano-materials, nano- particles by a small hole in the middle of the nano- flower-like structures GdF3: Eu3 nanomaterials. Test results show that the presence of amino acids with different structures resulting product under the same structure , morphology different luminescent properties there are some differences.

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