Figure 6.

(A–C) Schematic views of Cu₃Se₂ umangite slabs, with the unit cell indicated. Selenium anions are displayed in yellow and copper cations in blue. (D–F) Schematic views of CdSe wurtzite slabs with the unit cell indicated. Selenium anions are displayed in yellow and cadmium cations in red. (G) Three-dimensional model of the umangite (gray) and wurtzite (green) anionic sublattice. The a, b, c directions of the unit cells are indicated. For convenience general x, y, z directions are indicated in black. (H) Schematic representation of wurtzite nanoplatelet, with facets indexed.