Nanostructures based on Si nanocrystals: Growth machanism, chemical matrix and basic physical and electronic properties

对尺寸可控的硅纳米晶体的结构、光学和电学性质的基本理解是本项目的范围，以解释最近发展的问题。在光学性质方面，这涉及到相邻NC的相互作用以及对激子迁移的更深入理解。因此，必须继续进行面内TEM研究，以获得结构和光学数据的直接比较。特别注意的是澄清多激子产生的机制（MEG，或空间分离的量子切割SSQC）。基于我们对Si纳米晶体的长期经验和我们出色的实验基础，我们希望在理解间接量子点的基本光学和电子特性方面，在这一继续提案的框架内取得突破性的成果。

The fundamental understanding of the structural, optical and electrical properties of size-controlled Si nanocrystals is the scope of this project in order to explain the recently evolved questions. In terms of the optical properties this relates to the interaction of neighbouring NCs as well as a deeper understanding of excitonic migration. Therefore, the in-plane TEM investigations have to be continued to obtain a direct comparison of structural and optical data. Special attention is paid to the clarification of the mechanisms of multiple exciton generation (MEG, or SSQC for space separated quantum cutting). Based on our longtime experience with Si nanocrystals and our excellent experimental basis we want to achieve groundbreaking results in the framework of this continuation proposal in the understanding of fundamental optical and electronic properties of indirect quantum dots.