Deposition and Etching of Heterostructural Nanocrystals

The study of heterostructural nanocrystals is critical for advancing nanomaterials with tailored electronic, optical, and catalytic properties. In this work, we investigate the growth and etching processes of heterostructural nanocrystals using liquid cell transmission electron microscopy (TEM). The in situ TEM technique allows real-time observation of dynamic processes at the nanoscale, providing unprecedented insights into the structural evolution of nanocrystals in liquid environments. The study reveals key factors influencing the formation and dissolution mechanisms of heterostructures, including solvent effects, precursor concentration, and electron beam interactions. Our findings contribute to a deeper understanding of the corrosion and degradation of solar cells and photo catalysts.