本文選題：激光材料　切入點：晶體結(jié)構(gòu)　出處：《陜西師范大學》2015年碩士論文　論文類型：學位論文

【摘要】：高速發(fā)展的激光技術(shù)對國民經(jīng)濟、國防建設(shè)、科學技術(shù)以及人們的日常生活產(chǎn)生著極為深遠的影響,而激光材料是激光技術(shù)發(fā)展的核心和基礎(chǔ)。由于傳統(tǒng)的激光器在性能上存在諸多局限,如何研發(fā)出新型激光材料從而獲得性能更加優(yōu)異的激光器是科學家們長期以來關(guān)注的要點。稀土配合物液體激光材料不但有著稀土固體激光材料優(yōu)異的光學性能,又有著液體激光材料自修復(fù)和流動熱管理的優(yōu)點,使其成為激光材料的一個重要的研究方向。本論文基于上述觀點,進行了以下工作。第一章,對激光技術(shù)及其原理進行了簡單介紹,綜述了稀土配合物液體發(fā)光材料的發(fā)展背景,對評估材料光學性能的方法進行了一定的介紹,最后提出了本論文的研究內(nèi)容和研究意義。第二章,設(shè)計并合成了六個以三氟乙酸為第一配體,吡啶基和苯酮基化合物為第二配體的三氟乙酸釹三元配合物發(fā)光材料。用紅外光譜、X-射線單晶衍射、熱分析和熒光光譜對產(chǎn)物分子結(jié)構(gòu)特性、熱穩(wěn)定性和光學特性進行了表征。獲得了Nd(CF3COO)3 和Nd(CF3COO)3-(Ph3PO)2的單晶結(jié)構(gòu),得到了配合物分子精確的鍵長、鍵角,配合物原子或離子的空間排列,化學鍵結(jié)合方式以及分子的主體構(gòu)型等大量數(shù)據(jù)。研究表明合成出的配合物都具有較好的熱穩(wěn)定性,分解溫度都高于200℃,最大失重溫度都超過了260℃。對部分配合物進行了Z掃描實驗,測試了材料的非線性光學性質(zhì).用Judd-Ofelt理論結(jié)合材料的紫外可見近紅外吸收光譜計算了材料的激光特性,計算出了材料的三個強度參數(shù)Ω(t=2,4,6)對此類材料的研究應(yīng)用提供了理論支持。第三章,對本文所有研究工作進行了總結(jié)。
[Abstract]:The rapid development of laser technology has a profound impact on the national economy, national defense construction, science and technology, and people's daily life. Laser materials are the core and foundation of laser technology development. How to develop a new type of laser material to obtain a laser with better performance has been the focus of scientists for a long time. The liquid laser materials of rare earth complexes not only have excellent optical properties of rare earth solid laser materials, It has the advantages of self-repair and flow heat management of liquid laser materials, which makes it an important research direction of laser materials. Based on the above point of view, the following work has been done in this paper. The laser technology and its principle are briefly introduced, the development background of liquid luminescent materials of rare earth complexes is reviewed, and the methods to evaluate the optical properties of the materials are introduced. In chapter 2, six ligands with trifluoroacetic acid as the first ligand were designed and synthesized. Luminescent materials of neodymium trifluoroacetate ternary complexes with pyridyl and phenylketoyl compounds as second ligands. X-ray single crystal diffraction, thermal analysis and fluorescence spectra were used to characterize the molecular structure of the products. The single crystal structures of Nd(CF3COO)3 and Nd(CF3COO)3-(Ph3PO)2 have been obtained, and the exact bond length, bond angle, space arrangement of atoms or ions of the complexes have been obtained. A large amount of data such as the binding mode of chemical bond and the main configuration of the molecule are obtained. The results show that the synthesized complexes have good thermal stability and decomposition temperature is higher than 200 鈩，

本文編號：1564650