Crystalline, poorly crystalline, and single-layer MoS2 were synthesized usi
ng a hydrothermal method at low temperature (170-200 degreesC) through chan
ging pressure and time. XPS, XRD, and TEM were used to study the products.
It was found that the stacking of the single layers was closely related to
the pressure in the autoclave, A model was presented to explain this phenom
enon. (C) 2001 Academic Press.