Exciton dynamics is a research area that focuses on the study of excitons, which are bound states of an electron and a hole created when an electron is excited from the valence band to the conduction band in a semiconductor material. The dynamics of excitons involve their formation, recombination, transport, and interactions with other excitons, photons, and phonons. Researchers in this field investigate the behavior of excitons in various materials, such as semiconductors, organic molecules, and quantum dots, and seek to understand how exciton dynamics can be controlled and manipulated for applications in optoelectronics, photovoltaics, and quantum information processing.