稀土高分子配合物发光材料的合成

发光稀土高分子配合物是一类很有价值的功能材料,本文就其3种合成方法进行评述。以稀土离子与含配位基团的聚合物进行反应,难以获得发光强度高的高分子配合物;使稀土离子与高分子配体和小分子配体同时作用,可以得到荧光强度比较理想的产物,但反应难以定量控制;以小分子稀土配合物单体进行聚合反应,也可获得荧光强度较高的高分子配合物,但聚合反应的空间位阻较大。并针对方法3提出了改进的思路。     

稀土铕配合物发光材料的制备与应用

稀土铕发光材料因其具有较强的特征荧光,而且具有色纯度高、化学稳定性好、激发寿命较长和理论量子效率高等优点,已成为生物、医学、光、电、磁等领域研究的重要内容。本文主要总结了由稀土铕掺杂配合物制备发光材料的研究进展,从发光性质、稀土发光材料以及稀土铕掺杂配合物等方面展开论述。着重讨论近年来稀土铕掺杂配合物在新型发光材料方面发挥的作用以及相关研究成果,并展望了稀土发光材料的应用前景。     

稀土配合物发光材料的研究及应用

本文描述了稀土配合物发光材料的研究及相关应用的进展情况。从稀土有机配合物发光材料的发展历程 ,合成方法 ,研究方向及其在工农业 ,科学研究方面的应用进行了综合性的评述。最后 ,对稀土发光材料及其应用进行了总结 ,并展望了稀土配合物发光的发展趋势     

稀土配合的发光材料的研究及应用

本文描述了稀土配合物发光材料的研究及相关应用的进展情况。从稀土有机配合物发光材料的发展历程，合成方法，研究方向及其在工农业，科学研究方面的应用进行了综合性的评述。最后，对稀土发光材料及其应用进行了总结，并展望了配合的发光的发展趋势。     

稀土高分子配合物的研究进展

稀土高分子配合物是一类很有价值的功能材料。本文阐述了掺杂型稀土高分子配合物和键合型稀土高分子配合物的国内外研究现状。介绍了稀土高分子材料在荧光材料、农用发光材料、磁性材料、催化剂、温度传感器等方面的应用前景。     

近紫外白光LED用稀土配合物发光材料的研究进展

白光LED具有节能、环保、耐用等优点,具有广阔的应用前景.本文介绍了 LED发光材料的稀土配合物和近十年Eu3+(4f6)、Tb3+(4f8)和Dy3+(4f9)等稀土离子形成的配合物发光性能的研究进展.除了受中心稀土原子影响外,有机配体的结构特征、平面刚性程度以及配体间的协同效应都会影响配合物的发光性能.并对LED稀...     

稀土配位及稀土配合物在发光领域的应用

稀土领域的研究日益受到人们的关注,尤其在稀土配位化学领域。文章阐述了稀土的配位特性、稀土配合物的发光机理及在各个领域的应用。     

发光稀土配合物材料的研究现状与进展

稀土资源有广阔的应用前景,稀土发光配合物材料是目前稀土材料研究的主要内容,也是发光材料研究的热点。本文综述了目前发光稀土配合物材料的研究现状,重点概述了以Eu(Ⅲ)、Tb(Ⅲ)为中心离子的发光稀土配合物杂化材料的研究热点,分析了未来荧光稀土配合物材料研究面临的挑战,展望了发光稀土材料发展的方向。     

稀土荧光配合物的研究进展

介绍了稀土荧光材料的发光机理及发展历程,对其研究现状进行了综述,着重阐述了稀土有机配合物和高分子荧光材料研究的最新进展.最后,对稀土荧光材料及其应用进行了总结并展望了稀土荧光配合物的发展趋势.     

稀土荧光配合物的研究进展

介绍了稀土荧光材料的发光机理及发展历程,对其研究现状进行了综述,着重阐述了稀土有机配合物和高分子荧光材料研究的最新进展。最后,对稀土荧光材料及其应用进行了总结并展望了稀土荧光配合物的发展趋势。     

Recent Advances in Luminescent Transition Metal Polyyne Polymers

This review briefly summarizes research work carried out by the author in the past decade on rigid-rod transition metal polyyne polymers and their molecular precursors. The research involves the synthesis, spectroscopic and photophysical characterization, ligand functionalization, and possible optoelectronic applications of transition metal polyyne polymers. Herein, oligomeric and polymeric metal alkynyl systems of the late transition metals are discussed, and particular attention is focused on the electronic absorption spectroscopy and photoluminescence behavior, thermal stability and structural aspects of these polymetallaynes. A detailed account of the evolution of the first excited singlet and triplet state on the electronic structure of the organic spacer groups of these metal polyyne polymers is also given and the interplaying factors that govern the spatial extent of the lowest-lying singlet and triplet energy levels for the chemical tailoring of the singlet–triplet gap are elucidated. The possible developments of this research are also envisaged.     

Recent Advances in Metal Complexes for Antimicrobial Photodynamic Therapy

Antimicrobial resistance (AMR) is a growing global problem with more than 1 million deaths due to AMR infection in 2019 alone. New and innovative therapeutics are required to overcome this challenge. Antimicrobial photodynamic therapy (aPDT) is a rapidly growing area of research poised to provide much needed help in the fight against AMR. aPDT works by administering a photosensitizer (PS) that is activated only when irradiated with light, allowing high spatiotemporal control and selectivity. The PS typically generates reactive oxygen species (ROS), which can damage a variety of key biological targets, potentially circumventing existing resistance mechanisms. Metal complexes are well known to display excellent optoelectronic properties, and recent focus has begun to shift towards their application in tackling microbial infections. Herein, we review the last five years of progress in the emerging field of small-molecule metal complex PSs for aPDT.     

稀土材料在高科技领域中的应用

本文概述了稀土材料在高科技领域中的应用与进展,主要介绍了稀土发光材料、稀土永磁材料、稀土储氢材料及稀土催化剂材料。并对稀土材料的发展前景进行了展望。     

Recent Advances in Conjugated Transition Metal-containing Polymers and Materials

Metal-containing conjugated oligomers and polymers are reviewed, focusing on the work carried out by the author and coworkers since 1995. The synthesis of model systems, electropolymerizable monomers and polymer films are discussed, along with the electronic and spectroscopic properties of these systems. The application of phosphino-oligothiophene ligands as an entry to conjugated metallopolymers is described.     

钠离子电池锑基负极材料研究进展

本文综述了钠离子电池锑基负极材料的最新研究进展,包括金属锑,氧化锑,硫化锑以及硒化锑负极材料。总结了锑基钠离子电池锑基负极材料的结构特征及电化学储钠特性,并对钠离子电池锑基负极材料发展趋势进行了展望。     

有序介孔材料形成机理的研究进展

简要介绍了自1992年以来有序介孔材料形成机理的研究进展,重点介绍了几个重要的反应机理模型,如液晶模板机理模型、棒状自组装机理模型、层状折叠机理模型、电荷密度匹配机理模型、协同作用机理模型、真液晶模板机理模型、氢键-π-π-堆积协同作用机理模型等。并对有序介孔材料形成机理的研究提出了自己的观点和见解。     

稀土材料在合成橡胶中的应用

稀土材料主要是作为聚合用催化体系的主催化剂被应用在合成橡胶中。介绍了稀土催化体系及近年来稀土催化聚合在催化剂相态、分子量分布和顺式结构含量等方面取得的进展。介绍了稀土顺丁橡胶、稀土异戊橡胶和稀土丁戊橡胶目前的研究、生产现状及发展趋势。针对中国稀土材料的应用情况,提出了发展建议。     

稀土元素在陶瓷材料中的应用

针对我国稀土资源得天独厚的现状,从稀土元素的原子结构和化学特性出发,较详细地阐述了稀土元素在Al2O3、Si3N4、ZrO2等结构陶瓷以及介电、压电、导电陶瓷等功能陶瓷和陶瓷色釉料中的应用以及作用机理。     

Recent Advances in Multicolor Emission and Color Tuning of Heteroleptic Iridium Complexes

We review recent advances in the spectroscopic properties of heteroleptic Ir(N^C)₂(LX)-type iridium complexes, which are known as color-tuning materials. Most Ir(N^C)₂(LX)-type Ir complexes give single emission, in accordance with Kasha’s rule. Dual emission, however, has been observed from a single Ir(N^C)₂(LX) complex, depending on the choice of the N^C moiety and LX ligands. For example, Ir(dfppy)₂(pq), Ir(ppy)₂(dpq-3F), Ir(ppy)₂(pq), and Ir(pq)₂(tpy) (dfppy=2-(2,4-difluorophenyl)pyridine, pq=2-phenylquinoline, ppy=2-phenylpyridine, dpq-3F=2-(3-fluorophenyl)-4-phenylquinoline, tpy=2-p-tolylpyridine). Recently, triple emission was observed from Ir(ppy)₂(BTZ)-type iridium complexes with two ppy ligands as (N^C)₂ and one 2-(2-hydroxyphenyl)benzothiazole (BTZ) ligand, while quadruple emission from Ir(ppy)₂Q-type iridium complexes with two ppy ligands as (N^C)₂ and one quinolinolato (Q) ligand. These multiple emissions cover a spectral range from blue to red, leading to white emission. Of the four emission bands from Ir(ppy)₂Q, the UV and violet emissions are attributed to the emission from the singlet states of IrQ and Ir(ppy), respectively, while the green and red emissions are attributed to emission from the triplet states of Ir(ppy) and IrQ. The appearance of the emission from each of the Ir(ppy) and IrQ (or Ir(BTZ)) components is understood by reduced Förster energy transfer between IrQ (or Ir(BTZ)) and Ir(ppy) due to an orientation factor of nearly zero, that is, due to orthogonality between the two ligand planes, while the appearance of both the fluorescence and phosphorescence bands from each of the ligands is understood by inefficient intersystem crossing from the upper singlet state to the lower triplet state.