Presentations

Quantum Defects from First Principles

Dr. Mark Turiansky's PhD defense, Santa Barbara, May 31, 2022

Point defects embedded in semiconductors are a promising platform for applications in quantum information science and are known as "quantum defects". This presentation describes the background theory and application of first-principles computational techniques for the study of quantum defects.

First-principles modeling of efficiency of halide perovskites

Chris G. Van de Walle, Plenary talk at ICOOPMA-EuroDIM 2022, Ghent, Belgium, July 3-8, 2022

Halide perovskites offer impressive solar efficiencies and are being considered for light emitters. This presentation discusses first-principles calculations aimed at elucidating recombination mechanisms in the prototypical methylammonium lead iodide as well as in other halide perovskites.