ï¿½ 2015 Author(s). Nano-composites of two-dimensional atomic layered WS2and Au nanoparticles (AuNPs) have been fabricated by sulfurization of sputtered W films followed by immersing into HAuCl4aqueous solution. The morphology, structure and AuNPs distribution have been characterized by electron microscopy. The decorated AuNPs can be more densely formed on the edge and defective sites of triangle WS2. We have compared the optical absorption and photoluminescence of bare WS2and Au-decorated WS2layers. Enhancement in the photoluminescence is observed in the Au-WS2nano-composites, attributed to localized surface plasmonic effect. This work provides the possibility to develop photonic application in twodimensional materials.
ASJC Scopus subject areas
- General Physics and Astronomy