Single-layer MoS2

MoS2 has been exfoliated into monolayers by intercalation with lithium followed by reaction with water. X-ray diffraction analysis has shown that the exfoliated MoS2 in suspension is in the form of one-molecule-thick sheets. X-ray patterns from dried and re-stacked films of exfoliated MoS2 indicate that the layers are randomly stacked. Exfoliated MoS2 has been deposited on alumina particles in aqueous suspension, enabling recovery of dry exfoliated MoS2 supported on alumina.