Extended Data Fig. 1: Dilution process.
From: Structure evolution at the gate-tunable suspended graphene–water interface

Flow chart of diluting the electrolyte (CuSO4, 0.3 M) used for electrochemical etching of copper.
From: Structure evolution at the gate-tunable suspended graphene–water interface

Flow chart of diluting the electrolyte (CuSO4, 0.3 M) used for electrochemical etching of copper.