Plasmonic molybdenum trioxide quantum dots with noble metal-comparable surface enhanced Raman scattering

We propose a one-pot solution strategy to prepare sub-stoichiometric MoO ₃ quantum dots (MoO _3−χ -QDs) with single-layered, vacancy-containing and few-crystalline features, which display surface plasmon resonance (SPR) in both visible and near-infrared regions without illumination.