| 초록 |
Nanocyrstals are widely studied for their physical properties and utilized in biology, electronics, optics, and catalyst. However, most of nanocrystal synthesis and their uses are developed empirically with a limited mechanistic understanding. It is mainly because of their size and heterogeneity in structures and physical properties which cannot be easily accessible by conventional analytical methods. Here, we introduce direct observations of the growth and resulting 3D atomic structures of individual nanocrystals observed by using liquid phase transmission electron microscopy (LTEM). Unique mechanisms underlying colloidal growth of nanoparticles that are deviated from classical expectations will be discussed. In addition, our efforts to extend the dimension of our understanding to 4D will be introduced. |
