The exfoliation of 2D nanosheets from nonlayered 3D crystals has the potential to generate new 2D materials, but the exfoliation mechanisms remain unclear. Here, the authors identify the important role of intrinsic stacking faults in 3D boron crystals in the liquid-phase exfoliation of 2D boron nanosheets.
- Jing-Yang Chung
- Yanwen Yuan
- Slaven Garaj