Abstract
The growth of ligand-free MoS2 nanosheets with mean lateral sizes below 5 nm at 270 °C is reported. Nanosheets grown from a melt of tetraalkylammonium tetrathiomolybdates, [R4N]2[MoS4] (R = n-butyl, n-hexyl or n-octyl) vary in width between mean lateral sizes of 4.35 and 2.1 nm. Inclusion of the precursors into a polymer matrix shows the opposite trend in lateral dimensions with sheet widths ranging from 3.5 to 4.8 nm.
Highlights
The growth of ligand-free MoS2 nanosheets with mean lateral sizes below 5 nm at 270 8C is reported
Inclusion of the precursors into a polymer matrix shows the opposite trend in lateral dimensions with sheet widths ranging from 3.5 to 4.8 nm
We have investigated the use of tetraalkylammonium thiomolybdates for the ‘‘bottom-up’’ synthesis of ligand-free monolayer MoS2 nanosheets by decomposition within a melt and a polymer
Summary
Precursor determined lateral size control of monolayer MoS2 nanosheets from a series of alkylammonium thiomolybdates: a reversal of trend between growth media† The growth of ligand-free MoS2 nanosheets with mean lateral sizes below 5 nm at 270 8C is reported. Nanosheets grown from a melt of tetraalkylammonium tetrathiomolybdates, [R4N]2[MoS4] (R = n-butyl, n-hexyl or n-octyl) vary in width between mean lateral sizes of 4.35 and 2.1 nm.
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