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Synthesis and fluorescent properties of rare earth Rare earth complexes ultraviolet photochromic materials such as ternary and quaternary europium complexes were synthesized in this,we selected the high luminescent β-diketones such as α-thenoyltrifluoroacetone(HTTA),fine fragrant carboxylic acid and o-phenanthroline as ligands.
This study of the rare earth europium photochromic materials have theoretical and practical application guidance to security printing ink and packing.
Acknowledgment The work is supported by TianJin Natural Science Foundation（No.09JCYBJC02700） References [1] Qiu Guanming, Li Xikum,Qiu Tai,Zhao Haitao, Yu Honghao, Ma Ruiting: Journal of Rare Earths.
Rare-Earth Complexes of Ferrocene-Containing Ligands: Visible-Light Excitable Luminescent Materials Inorganic Chemistry .
Preparation and Fluorescence Properties of Rare Earth (Eu3+ and Ga3+) Complexes with Benzoic Acid and 1,10-Phenanthroline,J,Chinses Journal of Rare Metals.

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Abstract: Application of carbon fiber material to reinforced concrete structure is a systems engineering involving materials, design and application, which is also an applied science involving numerous subjects.
And aseismatic performance of structure was superior obviously. 1 Introduction Application of carbon fiber material to reinforced concrete structure is a systems engineering involving materials, design and application, which is also an applied science involving numerous subjects [1].
Joints will be full bonded with the materials.
Element SOLID65 in ANSYS is exploited for anisotropic materials such as concrete, rock and so on, which have far greater compressive capacity than tensile capacity.
It can simulate the phenomenon that strengthened reinforcement bar and materials in concrete are fractured and crushed.

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The dynamic characteristics of Al gate CuPc Thin film transistor Zeying Wanga, Dongxing Wang, Yongshuang Zhang, Yueyue Wang, Jinghua Yin, Hong Zhao Department of Electronic Science and Technology, College of Applied Science, Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education Harbin University of Science and Technology, Heilongjiang Harbin 150080, China a759115167@qq.com Keywords: organic material; Al gate electrode; CuPc; thin film transistor; Schottky barrier.
Therefore organic semiconductor materials have drawn considerable attention because of their more broad prospects for development in recent years.
The current extensive use of organic semiconductor materials are mainly in the following areas: readable and writable CD, organic light-emitting diodes, sensors, organic solar cell [1, 2, 3].
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Samples of materials passed the following stages: melting-crystallization-melting.
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