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

We propose a one-pot solution strategy to prepare sub-stoichiometric MoO3 quantum dots (MoO3−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.