FOR 1616: Dynamics and Interactions of Semiconductor Nanowires for Optoelectronics

半导体纳米线是研究一维光电子和光子器件基本极限的理想工具。在许多方面，它们上级其块状或薄膜对应物。到目前为止，在几乎所有的情况下，裸纳米线本身一直是研究的焦点。因此，今天我们对半导体纳米线的生长和性质有很好的控制，并且可以获得原型光电器件。下一个重要的步骤是将纳米线整合到特定的功能环境中，以充分利用其独特的上级物理特性。研究单位致力于光电子学半导体纳米线的动力学和相互作用，并研究半导体纳米线与其环境之间相互作用机制的物理和技术方面：我们迎接挑战，以确定功能化纳米线的机会和基本的和实际的限制，以实现高效的光电器件。这项科学工作将导致对纳米线与其环境的耦合机制的详细了解，并有助于确定和推动该领域的未来发展。在研究单元内解决的主题包括研究纳米线腔中强烈的光-物质相互作用产生的极化激元，这些纳米线腔可用于高效的室温发光二极管或纳米激光器。来自纳米线阵列的集体效应可以帮助定制发射或吸收动力学，从而优化未来基于纳米线的光电器件的性能。基础理论研究将阐明功能性有机化合物与纳米线表面的结合特性，并确定高效光子器件的优化几何形状。最后，该研究单位提供了一个广泛的科学背景，明确判断的优点和缺点，基于硅的光电子技术比传统的层和块技术。

Semiconductor nanowires are the ideal tools for the investigation of the fundamental limits of one-dimensional optoelectronic and photonic devices. In many aspects, they are superior to their bulk or thin-film counterparts. Until now, in almost all cases the bare nanowire itself has been in the focus of research. Therefore, today we have very good control over growth and properties of semiconductor nanowires and proto-type optoelectronic devices are available. The next essential step is the integration of nanowires into specific functional environments to fully exploit their unique and superior physical properties. The Research Unit is dedicated to the dynamics and interactions of semiconductor nanowires for optoelectronics and studies the physical and technological aspects of the interaction mechanisms between semiconductor nanowires and their environment: We meet the challenge to determine the chances and the fundamental and practical limitations of functionalised nanowires for the realisation of efficient optoelectronic devices. The scientific work will lead to detailed insights into the coupling mechanisms of nanowires to their environment and help to identify and propel future developments in this field. Topics that are addressed within the Research Unit include the study of polaritons resulting from the strong light-matter interaction in nanowire cavities that can be used for efficient room-temperature multicolor LEDs or nanolasers. Collective effects from nanowire arrays can help to tailor the emission or absorption dynamics, thus, optimising the performance of future nanowire-based optoelectronic devices. Fundamental theoretical studies will elucidate the binding properties of functional organic compounds to the nanowire surface and determine the optimised geometry for efficient photonic devices. Finally, the Research Unit provides a broad scientific background for a clear judgement on the advantages and disadvantages of nanowire-based optoelectronics over conventional layer and bulk technologies.