Ultrafast Probing of Defect-Engineered 2D Quantum Materials

Two-dimensional materials (2DMs), such as graphene, have revolutionized the field of nanotechnology due to their exceptional electronic, optical, and mechanical properties. However, the introduction of controlled defects into these materials offers an exciting avenue for tailoring their functionalities for next-generation technologies. This project focuses on studying the effects of defects, such as grain boundaries and vacancies, on the structural and electronic behaviour of 2DMs.

The research involves synthesizing defect-engineered 2DMs using advanced epitaxial growth and chemical vapor deposition (CVD) techniques. State-of-the-art characterization methods, including high-resolution transmission electron microscopy (HRTEM), femtosecond electron diffraction (FED), and ultrafast transient absorption (TA) spectroscopy, will be used to investigate how these defects influence carrier dynamics, lattice vibrations, and optoelectronic performance.

By combining experimental techniques, this project aims to establish clear correlations between defect structures and material behavior, providing valuable insights into how defects can be harnessed for designing improved materials. The results will have broad applications in areas such as photodetectors, flexible electronics, and quantum devices. This research contributes to advancing 2D material science, paving the way for innovative technologies that rely on defect engineering.

Faculty Supervisor:

Alberto (Germán) Sciaini

Student:

Partner:

Universität Duisburg-Essen

Discipline:

Physics

Sector:

Nanotechnology; Quantum Science

University:

University of Waterloo

Program: