The THz regime is the bridge between optics and electronics. Unfortunately, there is still a lack of ma-terials and devices in this area of the spectrum. We want to combine materials such as graphene with THz transparent polymers to develop, fabricate and characterize THz detectors based on flexible poly-mer and graphene with state-of-the-art equipment (figure 1 (a&b)). Moreover, the devices will also be characterized in the THz regime.

We are looking for motivated students with a background in physics, material science, electrical engi-neering, or chemistry for an MSc thesis in Transport at Nanoscale Interfaces Laboratory at Empa.

During the project, the MSc student will work on the following:

• Cleanroom fabrication of THz detectors
• Raman Spectroscopy for the characterization of graphene
• Matlab/python for analyzing data
• Device characterization

Figure 1. a) Raman spectroscopy of graphene on TOPAS b) Microscope imgae from graphene on TOPAS.

Relevant references for the project:

• Whelan et al., Non-contact mobility measurements of graphene on silicon carbide, Microelec-tronic Engineering, Volume 212, 1 May 2019, Pages 9-12
• Ballesio et al., A novel hot embossing Graphene transfer process for flexible electronics, Micro-electronic Engineering, Volume 209, 15 March 2019, Pages 16-19