CRC 951/3: Enabling High-Resolution Imaging and Spectroscopy of Electron Beam Sensitive Hybrid Material Systems (SP A12)
Abstract
The very special opto-electronic properties of hybrid inorganic/organic systems (HIOS) being investigated within this CRC are largely determined by the electronic structure and distribution of charges at the inorganic/organic interface. Holographic imaging techniques in transmission electron microscopy allow electrostatic potentials, electric fields, and charge distributions to be imaged. State of the art electron energy-loss spectroscopy available to this project provides a sub-nanometer-sized probe of the electronic structure with approximately 5 meV energy resolution. Novel techniques based on both of these principles will be developed to minimize the electron beam damage to the sample. Beam-sensitive HIOS will then be characterized to reveal maps of charge density and local dielectric function that can be compared to theory.
Principal investigators
Financer
DFG Collaborative Research Centre
Duration of project
Start date: 07/2019
End date: 06/2023
