FOR 1616: Dynamics and Interactions of Semiconductor Nanowires for Optoelectronics

半导体纳米线是研究一维光电子器件和光子器件基态极限的理想工具。在许多方面，它们都优于块体或薄膜材料。到目前为止，在几乎所有的情况下，裸露的纳米线本身都是研究的重点。因此，今天我们对半导体纳米线的生长和性能有了很好的控制，原型光电子器件也应运而生。下一步是将纳米线集成到特定的功能环境中，以充分利用其独特和优越的物理特性。研究单位致力于光电子学中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：我们面临的挑战是确定功能化纳米线实现高效光电子器件的机会以及基本和实际限制。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见解，并有助于确定和推动该领域的未来发展。研究股内涉及的主题包括研究可用于高效室温多色发光二极管或纳米激光器的纳米线腔体中强烈的光-物质相互作用产生的极化电子。纳米线阵列的集体效应有助于调整发射或吸收动力学，从而优化未来基于纳米线的光电子器件的性能。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最佳几何结构。最后，研究股提供了广泛的科学背景，以便明确判断基于纳米线的光电子学相对于传统的层状和块状技术的优势和劣势。

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.