Femtosecond spectroscopy and first-principles calculations shed light on compositional dependence of

Researchers from Skoltech and Ludwig Maximilians-Universität (LMU) in Germany have studied the fundamental properties of halide perovskite nanocrystals, a promising class of optoelectronic materials. Using a combination of theory and experiment, they were able to show and explain an intricate connection between composition, light-induced lattice dynamics, and the stability of the materials.