Surface and Interface Engineering consists of two research lines with a focus on the effect of interfaces on properties and stability, one conducted by Dr. Wim Sloof and his group and one conducted by Dr. Amarante Böttger and her group. Both associate professors also lead advanced experimental facilities for materials study, an X-ray Laboratory (Böttger) and a Surface Analysis Lab (Sloof).
The program involves both state-of-the-art experimental and theoretical/computational work. The research focuses on subjects that are positioned at the crossroads of scientific challenge, engineering complexity, and societal urgency. Energy applications, self-healing materials, and fabrication techniques for new-generation integrated circuits are the primary subjects.

The research by Dr. Böttger’s group primarily focuses on surface and interface driven solid-state reactions in solar, hydrogen, and other energy applications. Both experimental and computational methods are used. The research addresses a variety of subjects including metal-hydrogen interaction, silicon-metal compounds and photovoltaic cell materials. In addition, new techniques are developed for X-ray diffraction and fluorescence experiments, also involving advanced statistical analysis of diffraction data.
The X-ray Laboratory has state-of-the-art XRD and XRF equipment. The research is focused on powder diffraction, texture analysis, strain and defect density determination and, where XRD and XRF combine, on composition analysis.

The mission of the lab is to supply high precision, high reliability data for our own research projects, and for researchers in and outside the department, several of them across TU Delft. External companies and governmental organisations also make use of the group’s expertise.