Also called α-MoO₃, V₂O₅, titania nanosheets, perovskite oxide nanosheets, mica, clay nanosheets
Oxides are the backbone of electronics as insulators, dielectrics and catalysts, and some of them come in layers. A few, like molybdenum trioxide, are genuine van der Waals crystals; many others – clays, mica, certain titanates – are built from charged sheets that can be separated in water. The result is a toolkit of atomically thin insulators and dielectrics, and one of the clearest places to see the difference between a 2D crystal and a nanosheet cut from a solid bonded in three dimensions.
They are coordination polyhedra. Only complete ones are drawn.
Three double layers of α-MoO3. Each is turned by 180° and shifted by half a cell in both directions against the one below, so that the terminal oxygen atoms of neighbouring double layers nest into each other; every second double layer repeats, 13.85 Å apart. Cell from Sławiński, Fjellvåg, Ruud and Fjellvåg, Acta Crystallographica B 72, 201 (2016); COD 2311689.
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Oxides bring electron correlation (V and Mo d states) and polaronic effects, so DFT+U or hybrid functionals are needed, and oxygen-vacancy energetics depend sensitively on both. For ionically layered nanosheets, charge-compensating counter-ions and adsorbed water must be modelled explicitly – a free-standing charged slab in vacuum is not the real system.
Distinguish exfoliated crystals from restacked nanosheet films by XRD (sharp versus broad basal reflections) and by AFM step heights, which include adsorbed ions and water. For polaritonics, determine α-MoO3 crystal axes first – the response is completely different along [100] and [001].
Clay nanocomposites are the oldest commercial ‘2D material’ application, predating graphene by decades. Oxide nanosheet dielectrics appeal because oxide chemistry is familiar to fabs, but wafer-scale uniformity of solution-assembled films is the barrier.
The newest items tagged Oxide nanosheets, from the news feed updated 5 Oct 2026.
One-dimensional transition metal dichalcogenides (TMD) nanoribbons (NRs) offer a promising route to aggressive channel-width scaling in nanoscale transistors. However, controlling their layer number, a key determinant of device performance, has remained elusive. Here, we demonstrate a chemical vapor deposition (CVD)…
Surface charge transfer doping (SCTD) preserves the pristine crystal structure and allows precise tuning of the doping level, making it a promising strategy for modulating the properties of low-dimensional materials. In this work, we investigate the effect of surface MoO3 molecular d… [Phys. Rev. B 114, 185416]…
The integration of two-dimensional transition-metal dichalcogenides (TMDCs) onto functional substrates remains constrained by stochastic vapor-phase growth dynamics. Here, we show that liquid-phase precursor chemical vapor deposition (CVD) of MoS2 introduces growth conditions that are consistent with a…
Molybdenum disulfide (MoS2) is a promising 2D transition metal dichalcogenide (TMD) for optoelectronics and quantum technology applications, but faces challenges in scalable synthesis and defect engineering. Oxygen-assisted chemical vapor deposition (O-CVD), which introduces in-situ oxygen during growth, shows…
Molybdenum disulfide (MoS2) is a promising 2D transition metal dichalcogenide (TMD) for optoelectronics and quantum technology applications, but faces challenges in scalable synthesis and defect engineering. Oxygen-assisted chemical vapor deposition (O-CVD), which introduces in-situ oxygen during growth, shows…
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