NanoTechnology: Materials, Processes & Devices

Superconducting qubits are among the most promising platforms for realizing fault-tolerant, large-scale quantum computers. Despite rapid progress, challenges remain in extending coherence times and improving connectivity. Hybrid quantum systems that couple superconducting circuits to mechanical resonators provide a promising route to scalability. Notably, silicon nanomechanical resonators offer ultra-long lifetimes, and superconducting circuits interfaced with optomechanical cavities can enable microwave-to-optics quantum transduction. However, existing approaches that rely on...

Hydrogen is increasingly central to clean‑energy and manufacturing sectors, yet its colorless and highly flammable nature demands fast, reliable, and selective detection technologies. This work presents a multiscale engineering approach to palladium‑based nanostructures designed to meet industrial requirements for speed, stability, and operational robustness. We demonstrate how structural control—from facet‑defined Pd nanocubes to truncated Pd crystals and mesoporous PdCu and PdCo alloys—directly governs hydrogen dissociation, diffusion pathways, and hydride formation behavior. Mesoporous...

Silicon, a mature platform of modern semiconductor technology, is also emerging as a versatile host for quantum and nanoscale systems. In addition to its low-loss and low-noise properties, silicon can host defects that provide localized states with rich electronic and mechanical responses. In this project, we investigate defect-mediated electromechanical coupling in silicon, where lattice imperfections act as active media connecting electrical and vibrational degrees of freedom. By fabricating high-quality mechanical and superconducting resonators on silicon, we probe how defects influence...

2D materials are among the most promising candidates for next-generation semiconductor devices due to their exceptional electronic transport properties and composition of a single atomic layer, which offers significant advantages for integration density. However, high contact resistance and challenges in doping present obstacles to their practical applications. In this work, we aim to explore various methods to overcome these issues and achieve technological breakthroughs that will enable these materials to become integral components in a wide range of applications.

...