My research focuses on electron microscopy as a fundamental tool to measure chemical changes at the interfaces between different materials with atomic resolution. This can produce fantastic images that directly show where the atoms are located! Method development for analytical transmission electron microscopy, including energy-dispersive X-ray and electron energy-loss spectroscopy Diffusion and segregation measurements in semiconductor nano-structures Lattice defects in quantum dots, nano-wires and quantum wells Characterization of doping, surface treatments, metal layers for plasmonics and oxides for energy storage applications Microstructural characterization of prototype electronic devices, such as photodiodes, field-effect transistors, quantum well, quantum dot or quantum cascade lasers, photovoltaic cells Engagement in electron microscopy societies and international conference organisation