Research / 2022 / Article / Fig 3

Research Article

In Situ Investigation of the Phase Transition at the Surface of Thermoelectric PbTe with van der Waals Control

Figure 3

Images used to study the nucleation process and the geometric-structure transformation. (a) HRTEM image of PbTe (Pnma) particles and crystal nucleus at elevated temperature of 400°C. (b–f) Process of geometric-structure transformation of the PbTe crystal nucleus.