本文關(guān)鍵詞：摻雜型稀土聚合物一維納米陣列的熒光性能研究　出處：《青島大學(xué)》2016年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 稀土配合物 熒光 AAO模板 納米陣列

【摘要】：自從碳納米管被發(fā)現(xiàn)以來,一維納米材料的研究受到了極大地關(guān)注。聚合物一維納米材料作為其一個重要的分支,在最近幾年成為納米科技前沿領(lǐng)域的研究熱點。稀土金屬是重要的發(fā)光基質(zhì)材料,稀土熒光配合物及其摻雜聚合物后的復(fù)合材料已經(jīng)被廣泛的應(yīng)用于各種領(lǐng)域,將發(fā)光配合物引入聚合物基質(zhì)中以制備成納米陣列,并對其性質(zhì)及用途進(jìn)行研究。本研究中采用溶液共沉淀法成功制備了稀土銪和鋱的配合物,通過紅外光譜(IR)、紫外吸收光譜(UV)及熱重分析(TG)對其結(jié)構(gòu)組成、熒光性能等進(jìn)行了表征。通過熒光光譜表征表明這兩種稀土配合物的發(fā)光性能良好。將自制的配合物摻雜于聚甲基丙烯酸甲酯(PMMA)中,用流延法制備出復(fù)合膜后用熒光光譜進(jìn)行表征分析表明復(fù)合膜材料與配合物光學(xué)性能一致,復(fù)合后聚合物的存在沒有破壞配合物材料的發(fā)光性能。在成功制備了配合物聚合物復(fù)合材料以后,又通過模板法成功制備了稀土熒光配合物摻雜聚合物材料納米陣列。如稀土金屬銪或鋱配合物與常規(guī)分子量的PMMA、聚乙烯咔唑(PVK)聚合物復(fù)合生成納米陣列。掃描電子顯微鏡(SEM)表征表明:復(fù)合材料的納米陣列規(guī)整、直徑均一、與所用AAO模板孔徑一致;能量色散譜(EDS)就其成份做了分析,表明聚合物納米陣列含有稀土金屬元素;透射電子顯微鏡(TEM)表明,稀土配合物嵌于納米線或納米管之中,團(tuán)聚現(xiàn)象較輕。熒光測試表明,各種納米陣列均表現(xiàn)出相應(yīng)稀土離子的特征光譜,且其熒光強(qiáng)度要明顯優(yōu)于純配合物和復(fù)合塊狀膜材料;此外,本文還就上述現(xiàn)象的形成機(jī)理做了初步探究。
[Abstract]:Since the discovery of carbon nanotubes, the research of one-dimensional nanomaterials has attracted great attention. As an important branch of one dimensional nanomaterials, polymer one-dimensional nanomaterials have become a hot topic in the frontier field of nanotechnology in recent years. Rare earth metals are important luminescent matrix materials. Rare earth fluorescent complexes and polymer doped composites have been widely applied in various fields. Luminescent complexes are introduced into polymer matrix to prepare nano arrays, and their properties and applications are studied. In this study, the complexes of rare earth europium and terbium were successfully prepared by solution coprecipitation. Their structure and fluorescence properties were characterized by infrared spectroscopy (IR), ultraviolet absorption spectroscopy (UV) and thermogravimetric analysis (TG). The fluorescence spectra showed that the luminescence properties of the two rare earth complexes were good. The self-made complexes doped in polymethyl methacrylate (PMMA), were prepared by casting composite membrane after using fluorescence spectroscopy analysis showed that the complexes were characterized with favorable optical properties of composite membrane material, the composite polymer has no damage with luminescence material. After successfully preparing the complex polymer composite, the rare earth fluorescent complex doped polymer nanoarrays have been successfully prepared by the template method. The complexes of rare earth metal europium or terbium complexes are combined with conventional molecular weight PMMA and polythene carbazole (PVK) polymers to produce nanoscale arrays. Scanning electron microscopy (SEM) characterization showed that the composite nano structured array, uniform diameter, and the AAO template aperture consistent; energy dispersive spectroscopy (EDS) is the component to do the analysis, show that the polymer nano array containing rare earth metals; transmission electron microscopy (TEM) showed that the rare earth complexes embedded in nanowires or nanotubes, agglomeration of lighter. Fluorescence measurements showed that all kinds of nano arrays showed the characteristic spectrum of the corresponding rare earth ions, and their fluorescence intensity was obviously better than that of pure complexes and composite bulk materials. In addition, the formation mechanism of the above phenomena was also explored.
【學(xué)位授予單位】：青島大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2016
【分類號】：O641.4

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