Multinary main group halogenido metalates between high entropy solid solutions and ordered new motifs

主族卤代金属化物，特别是卤化铅钙钛矿，正处于各种半导体应用的激烈研究中。我们希望在两个方向上扩展这些材料的化学性质，这两个方向到目前为止还没有得到充分的探索。在第一个项目中，我们希望将高熵材料的原理应用于卤代金属盐的合成。在这里，一个晶体学位置统计上被等摩尔量的五个或更多个不同的金属原子占据。我们希望这种方法能够产生具有改进或全新特性的材料。在第二个项目中，我们希望合成具有13/15或14/15族元素的有序多元卤代金属酸盐。在这个方向上的初步工作表明，可以获得新的材料，这些材料显示出与简单的金属氧化物有很大不同的性质。

Main group halogenido metalates, especially lead halide perovskites, are under intense investigation for various semiconductor applications. We want to expand the chemistry of these materials in two directions, which have been under-explored until now. In the first project we want to apply the principles of high entropy materials to the synthesis of halogenido metalates. Here, one crystallographic position is statistically occupied by an equimolar amount of five or more different metal atoms. We expect this approach to yield materials with improved or entirely new properties. In the second project we want to synthesize ordered multinary halogenido metalates featuring group 13/15 or 14/15 elements. Preliminary works in this directions show that new materials can be obtained which show properties that strongly diverge from those of the simple monometallic metalates.