How Does Etchant Concentration Affect Etching Rate?
The etching rate is directly proportional to the concentration of the etchant. Higher concentrations typically increase the etching rate, allowing for faster material removal. However, high concentrations can also lead to non-uniform etching and rough surfaces. Conversely, lower concentrations tend to result in slower etching rates, which can be beneficial for achieving more controlled and uniform etching of delicate nanomaterials.