Integration of different conductive coordination network compounds in multi-electrode device structures

该项目将侧重于将不同的氧化还原和导电配位网络化合物（CCNCs）作为薄膜集成到多电极设备上，作为电子和电化学设备的活性材料。在第一个资助期内，我们开发了基于金属六氰基金属酸盐在不同基底上制备晶体薄膜的方法。在本项目中，我们希望将这些方法联合收割机结合起来，以便在彼此之上存款具有不同氧化还原电位的CCNCs。电化学方法和X射线光电子能谱将用于表征这些材料之间的界面或界面相。它们将提供多元化合物层中组分的元素分布、价态分布以及氧化还原电位。界面相也将通过透射电子显微镜（TEM）在液体池中进行研究，以深入了解这些层的范围和结构，并了解它们在电化学触发的价态变化中的作用。根据层的氧化还原状态，它们可以或不能接受/捐赠来自相邻CCNC相的电荷载流子。模具将使得能够通过经由基板上的接触电极的伏安法或通过液相中的氧化剂或还原剂改变CCNC的氧化还原状态来调节跨此类界面/界面的电导率。这应通过交叉指状电极阵列进行测试。虽然微带电极对CCNC氧化还原状态的改变不太可能是永久性的，因为电荷载流子迁移率往往会消散这些结构，但通过在此类薄膜表面交换过渡金属离子和配体，将产生更永久的结构。这将为这种功能层的结构和功能修饰开辟新的可能性，例如将传感和光子功能集成到这种多组分CCNC中。

This project will focus on the integration of different redoxaktive and conductive coordination network compounds (CCNCs) as thin films on multi-electrode devices as active materials for electronic and electrochemical devices. In the first funding period we developed the preparation of crystalline films on the basis of metal hexacyanometallate on different Substrates. In this project we would like to combine the approaches in order to deposit CCNCs with different redox potentials on top of each other. Electrochemical methods and X-ray photoelectron spectroscopy will be used for the characterization of the interface or interphase between such materials. They will provide the elemental distribution, the distribution of valence states as well as the redox potentials of the components in the multi-compound layers. The interphase will also be investigated by transmission electron microscopy (TEM) in a liquid cell, in order to gain insight into the extent and structure of those layers and to understand their role in electrochemically triggered valance changes.Depending on the redox state of the layers, they can or cannot accept/donate charge carriers from the neighboring CCNC phase. Dies will enable to tune the conductivity across such interfaces/interphases by changing the redox state of the CCNCs by voltammetric methods via the contact electrodes on the substrate or by oxidizers or reductants in the liquid phase. This shall be tested by interdigitated electrode arrays.While the change of the redox state of a CCNC by a microbandelectrode is unlikely to be permanent because charge carrier mobility will tend to dissipate those structures, more permanent structures will be created by exchange of transition metal ions and ligands at the surface of such thin films. This will open new possibilities for structural and functional modification of such functional layers, for instance to integrate sensory and photonic functionalities into such multi-component CCNC.