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

多电极器件结构中不同导电配位网络化合物的集成

• 批准号: 316798080
• 负责人: Professor Dr. Gunther Wittstock
• 金额: --
• 依托单位: Institut für Chemie (IfC)
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/316798080?language=en
• 关键词: Integration; different; conductive; coordination; network

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.

该项目将集中于在多电极设备上作为薄膜作为电子和电化学设备的活动材料的薄膜的不同氧化氧化和导电协调网络化合物（CCNC）的整合。在第一个融资期间，我们根据金属六酰基对不同底物的金属甲酸酯制备了晶体膜的制备。在这个项目中，我们想结合这些方法，以使CCNC彼此之间具有不同的氧化还原电势。电化学方法和X射线光电子光谱法将用于表征此类材料之间的界面或相互作用。它们将提供元素分布，价状态的分布以及多元化层中组件的氧化还原电位。相间还将通过液体电池中的透射电子显微镜（TEM）研究，以深入了解这些层的程度和结构，并了解它们在电化学触发的价值变化中的作用。在层的氧化还原状态下，他们可以或不能接受/不能接受来自邻近邻近的CCNC相位的载体。 DIE将通过伏安法通过底物上的接触电极或液相中的氧化剂或还原剂来改变CCNC的氧化还原状态，从而使DIES在此类界面/相互作用之间调整电导率。这应通过互密的电极阵列进行测试。尽管微型电极的CCNC的氧化还原状态的变化不太可能是永久性的，因为电荷载体迁移率倾向于消散这些结构，但更永久的结构将通过交换过渡金属离子和配体在此类薄膜表面的交换来产生。这将为此类功能层的结构和功能修改打开新的可能性，例如将感觉和光子功能集成到此类多组分CCNC中。