Prof. William Scheideler at ECE Fall 2024 Colloquium

Nanomanufacturing of 2D oxides for scalable electronics and energy

The future of ubiquitous electronics and energy systems call for rethinking how we design and sustainably manufacture devices combining sensing, energy harvesting, and computing. Scalable nanomanufacturing via printing technologies could deliver these multifunctional systems by allowing low-cost integration of nanoscale materials. In this talk we apply roll-based printing to address two fundamental challenges for scalable fabrication: 1) how to extend printing towards high performing ultrathin semiconductors and 2) how to design inks for large-scale ultra-uniformity. We focus on an emerging class of two-dimensional (2D) metal oxide semiconductors printed via a roll-based continuous Cabrera Mott surface oxidation of liquid metals. These wide bandgap 2D conducting oxides (In2O3, Ga2O3, etc.) are uniquely capable of driving large area technologies (displays, smart windows, etc) leveraging their high transparency and tunable electronic structure.