SPP 1136: Chemical Substitution in Ionic Solids

离子固溶体在离子导体、介电材料、磁性材料、发光材料和传感器材料等许多先进技术中发挥着越来越重要的作用。所需的性质通常是通过取代正负离子亚晶格中的组分来获得的。该计划的目的是在基础科学的观点下推动此类材料的发展。这些努力的重点是具有确定的组成和相范围的离子固溶体的可重复合成。包括对它们的物理和物理化学性质的研究，目的是发展对合成和性质的微观理解。将建立取代、微观和宏观性质之间关系的模型。这项研究的另一个目的是优化材料性能，其中包括材料科学的工作范围。金属氧化物的性质将通过阳离子或阴离子亚晶格中的取代来控制，它代表了要检查的对象。研究的重点是用S2-、F-、N3-等“简单”阴离子对阴离子亚晶格进行修饰。在这个项目中获得的经验将有助于缩小离子高科技材料不断增长的重要性与通常不够了解的化学和物理基础之间的差距。

Ionic solid solutions get more and more important in a lot of advanced technologies, e.g. as ionic conductors, dielectric or magnetic materials, luminescent substances and sensor materials. The desired properties are often obtained by substitution of components in the cation or anion sublattice. The intention of the program is to push the development of such materials under the viewpoint of basic science. The efforts are focused on the reproducible synthesis of ionic solid solutions with defined composition and phase range. The study of their physical and physicochemical properties is included with the aim to develop a microscopic understanding of both synthesis and properties. Models for the relation between substitution, microscopic and macroscopic properties will be developed. An additional aim of the research is optimisation of material properties, which includes the workscope of material science. Metal oxides, whose properties will be controlled by substitution in the cation or anion sublattice, represent the objects to be examined. The studies are focused on a modification of the anion sublattice using "simple" anions like S2-, F-, N3-. Experiences attained in this program will assist to close the gap between the continuously growing importance of ionic high-technology materials and the often insufficiently understood chemical and physical fundamentals.