Synthesis and Characterization of Amorphous Inorganic Cluster Compounds

非晶态无机簇合物的合成与表征

• 批准号: 418805057
• 负责人: Professorin Dr. Stefanie Dehnen
• 金额: --
• 依托单位: Institut für Nanotechnologie (INT)
• 依托单位国家: 德国
• 项目类别: Research Units
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/418805057?language=en
• 关键词: Synthesis; Characterization; Amorphous; Inorganic; Cluster

Continuing and extending the work done in project A1 in the first funding period of FOR 2824, we investigate adamantane-like clusters of the [(RT)4E6] type (R = organic substituent; T = Si, Ge, Sn; E = S, Se, Te), which under certain circumstances exhibit extreme nonlinear optical properties in the form of a spectrally broad (white-light) emission. In cooperation with the PIs of the other projects within FOR 2824, these compounds are investigated experimentally and theoretically with respect to their nonlinear optical properties and with respect to their microscopic and macroscopic structures; here, the substances also serve as benchmark compounds for new experimental and theoretical methods to study amorphous materials in general. Among the major long-term goals of FOR 2824 are understanding the physical mechanism behind the new form of white light generation and the use of the materials in engineered devices. Based on the results obtained in the first funding period, we are therefore targeting in project A1 those substances that are particularly suitable for the formation of homogeneous, robust samples with the desired white-light emission properties as a result of their combination of R/T/E (or R/R', T/T', E/E'). We will develop synthetic routes to new compounds where R, T, and E can be uniform or diverse. We also propose – also in cooperation with project A2 – promising extensions of the compound library toward extended cluster cores, multifunctional substituents, and polymeric materials. In the case of crystalline materials, we will determine their structures. However, in terms of white-light generation, amorphous materials are the focus of the project. Therefore, the control of amorphousness is another important goal of the project A1 in the second funding period. We want to influence this specifically through glass formation, by exposure to external pressure, and by incorporation into scaffolds. The most promising compounds, as determined by our own pre-screening using a simple laser setup and simple DFT calculations, will be passed on to the theorists and physicists in FOR 2824, who will then perform more detailed studies on them in close cooperation with us and ultimately use the compounds for the fabrication of test devices.

继续和扩展项目A1在2824年的第一个资助期所做的工作，我们研究了[(RT)4E6]类型的金刚烷类簇合物(R=有机取代基；T=Si，Ge，Sn；E=S，Se，Te)，它们在某些情况下表现出光谱宽(白光)发射形式的极端非线性光学性质。与FOR 2824中其他项目的PI合作，对这些化合物的非线性光学性质以及微观和宏观结构进行了实验和理论研究；在这里，这些物质也是研究非晶态材料的新的实验和理论方法的基准化合物。For 2824的主要长期目标之一是了解新形式的白光产生背后的物理机制，以及材料在工程设备中的使用。因此，根据在第一个资助期取得的结果，我们在A1项目中针对的是那些特别适合形成均匀、坚固的样品的物质，这些样品由于R/T/E(或R/R‘、T/T’、E/E‘)的组合而具有所需的白光发射特性。我们将开发合成新化合物的路线，其中R、T和E可以是统一的或多样化的。我们还建议-也与A2项目合作-有希望将化合物库扩展到扩展的簇核、多功能取代基和聚合物材料。对于晶体材料，我们将确定它们的结构。然而，在白光产生方面，非晶态材料是该项目的重点。因此，控制无形性是A1项目在第二个资金期的另一个重要目标。我们希望通过玻璃的形成，通过暴露在外部压力下，以及通过结合到支架中来具体影响这一点。最有希望的化合物，通过我们自己使用简单的激光装置和简单的DFT计算进行的预筛选，将被传递给For 2824中的理论家和物理学家，他们然后将与我们密切合作对它们进行更详细的研究，并最终将这些化合物用于制造测试设备。