Andreas Kolditz is investigating electrical and optical properties of two dimensional nanostructures. 2D-nanosheets are promising materials for photovoltaics as well as for light emitting applications. In particular we performed Electrostatic Force Microscopy (EFM) and Kelvin Probe Force Microscopy (KPFM) in combination with electrical transport and fluorescence measurements of the same individual nanostructures, which were contacted by electrodes.
Figure 1: Schematic illustration of the experimental setup. While the scanning probe microscope (AFM, EFM, KPFM) is on top the optical measurements (CLSM) were carry out beneath.