Why do synthetic 2D materials often perform orders of magnitude worse than predicted? A new understanding of this scenario could improve the materials’ performance in future electronics, photonics, and memory storage.
2D materials are films only an atom or two thick. Researchers make 2D materials by the exfoliation method—peeling a slice of material off a larger bulk material—or by condensing a gas precursor onto a substrate. The former method provides higher-quality materials, but is not useful for making devices. The second method is well established in industrial applications, but yields low performance 2D films.
The researchers demonstrated, for the first time, why the quality of 2D materials grown by the chemical vapor deposition method have poor performance compared to their theoretical predictions. They report their results in Scientific Reports.