Fig. 1
From: Isolating hydrogen in hexagonal boron nitride bubbles by a plasma treatment
Production of bubbles on h-BN flakes via plasma treatment. a Schematic depicting the plasma treatment of h-BN flakes in different atmospheres. All AFM height images of the h-BN flakes were taken after plasma treatment in an atmosphere of b argon, c oxygen or d hydrogen. The h-BN flakes appear to remain intact after the argon and oxygen plasma treatments, while obvious bubbles are observed on the h-BN surface after treatment with the H-plasma. All samples were obtained under similar conditions. Scale bars in (b–d) are 4 μm
