Creation of ZnS
![[atomic_layer_deposition.png]]
(a) ZnCl<sub>2</sub> adsorbs to substrate, forms only one layer of chemically bonded molecules
(b) N<sub>2</sub> purges excess ZnCl<sub>2</sub> molecules
(c) Introduce H<sub>2</sub>S, H and Cl bond, Zn and S bond
(d) N<sub>2</sub> purges excess H<sub>2</sub>S molecules
Advantage
- can grow precise thickness
- deposit onto complex geometry