Metal Oxides

Metal oxides (MOs) are typically wide-bandgap materials with many properties beneficial for electronic applications. In our research we are focusing on solution processing of semiconducting and insulating metal oxides for uses in e.g. thin-film transistors (TFTs), RF nanogap diodes, or as interlayers in photovoltaic cells. We investigate innovative ways of deposition and post-treatments such as spray pyrolysis and photonic curing, which allow rapid large-area fabrication at low temperatures. Together with new approaches to interface and design engineering we aim to open up new avenues to improve device performances. For example, the usage of ultra-thin bilayer or multilayer film stacks of individual MOs layers has been shown to significantly boost the mobility and stability of TFTs compared to single layer counterparts. Further investigation into this phenomenon and the opportunities it creates is under active research.