Project Details
Projekt
Enabling high-resolution imaging and spectroscopy of electron beam sensitive hybrid material systems (A12)
Subject Area
Experimental Condensed Matter Physics
Term
from 2017 to 2023
Project identifier
Deutsche Forschungsgemeinschaft (DFG) - Project number 182087777
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.
DFG Programme
Collaborative Research Centres
Applicant Institution
Humboldt-Universität zu Berlin
Project Head
Professor Dr. Christoph Tobias Koch, Ph.D.
