GRK 2948: Mixed Ionic-Electronic Transport: From Fundamentals to Applications

在这个研究培训小组(RTG)内，将对各种有机、杂化和纳米材料中混合离子-电子传输的基本过程进行研究和建模；适当的材料将被合成或改性，现场表征，并最终应用于器件。近年来，离子-电子混合传输及其材料被重新发现、优化和应用于从生物电子学、化学和生物传感、光电子学、神经形态和软驱动器到储能的许多领域。这些材料和器件的性能参数是由离子电荷和电子电荷同时输运和耦合决定的。对于每种材料，离子和电子传输的精确平衡和相互作用及其对其他性能(例如，机械或光学)的综合影响必须根据各自的应用而量身定做。这需要多个学科的结合，如材料科学、物理化学、固体物理、电子学、机械工程和生命科学。RTG的研究主题包括三个重点领域：i)新材料和材料改性：朝向新结构和复杂功能；ii)输运和光谱：朝向时空分辨的原位和操纵面表征；iii)建模和模拟：朝向离子-电子混合体系的多尺度模型。该RTG汇集了来自海德堡大学和斯图加特大学的首席研究人员和博士生研究员，他们来自自然科学和工程领域，共同开发用于电化学晶体管、传感器和软致动器的新材料和器件结构(例如，3D打印聚合物、水凝胶和纳米材料复合材料、有机-无机混合钙钛矿)；或者用于电荷储存的氧化还原活性有机和混合电极。离子-电子耦合和输运的性质将通过原位和时间分辨光谱在基本水平上进行研究，并通过力学和流变学测量来研究它们的宏观效应。离子运动和电荷积累将通过原子学、蒙特卡罗和连续介质相结合的方法来模拟，以使新材料和器件架构的合理设计成为可能。通过所有研究小组之间的密切合作，参与RTG的研究人员将接触到许多不同的实验技术和理论方法。随之而来的资格认证计划将为来自不同背景的研究人员提供跨学科、与国际研究人员和公众交流的词汇和工具。我们的目标是形成一个真正互动和多样化的薄荷(即STEM)社区，为年轻研究人员的论文和未来职业生涯提供最佳条件。

Within this Research Training Group (RTG) the fundamental processes of mixed ionic-electronic transport in various classes of organic, hybrid and nanomaterials will be investigated and modelled; suitable materials will be synthesized or modified, characterized in-situ and finally applied in devices. Mixed ionic-electronic transport and corresponding materials have recently been rediscovered, optimized and applied in many fields from bioelectronics, chemical and biological sensing, optoelectronics, neuromorphics and soft actuators to energy storage. The performance parameters of these materials and devices are determined by the simultaneous transport and coupling of ionic and electronic charges. For each material, the precise balance and interaction of ionic and electronic transport and their combined impact on other properties (e.g., mechanical or optical) must be tailored to the respective application. This requires the combination of multiple disciplines, such as materials science, physical chemistry, solid-state physics, electronics, mechanical engineering, and life sciences. The research topics of the RTG encompass three focus areas: I) New Materials and Material Modification: toward new structures and complex functionalities; II) Transport and Spectroscopy: toward spatially and temporally resolved in-situ & operando characterization; III) Modelling and Simulation: Toward a multi-scale model for mixed ionic-electronic systems. This RTG brings together principal investigators and doctoral researchers from Heidelberg University and the University of Stuttgart; from natural sciences and engineering to jointly develop new materials and device structures (e.g., 3D-printed polymers, hydrogel and nanomaterial composites, hybrid organic-inorganic perovskites) for electrochemical transistors, sensors and soft actuators; or redox-active organic and hybrid electrodes for charge storage. The nature of ionic-electronic coupling and transport will be studied on a fundamental level by in-situ and time-resolved spectroscopies and their macroscopic effects by mechanical and rheological measurements. Ionic movement and charge accumulation will be modelled through combined atomistic, Monte-Carlo and continuum approaches to enable the rational design of new materials and device architectures. Through close collaboration between all research groups, the participating RTG researchers will be exposed to many different experimental techniques and theoretical methods. The accompanying qualification program will provide researchers from different backgrounds with the vocabulary and tools to communicate across disciplines, with international researchers and the public. The goal is to form a truly interactive and diverse MINT (i.e., STEM) community that provides young researchers with optimal conditions for their dissertation and future careers.