Enhanced photoluminescence and Raman spectra in SnS-Sn nanohybrids structures with Sn nanosheets

摘要

SnS nanoparticles though is largely preferred due to the economic feasibility, abundance and eco-friendly, these structures are reported to have very low quantum efficiency and poor photoluminescence. In this work we report on the enhancement of emission and Raman intensity of SnS nanoparticles by coupling them with Sn nanoparticles of different morphology. The Sn nanoparticles exhibit surface plasmon resonance in the UV-Visible region and can be controlled by varying the morphology on the nanostructures. The optical abosorption spectrum of SnS nanoparticles coupled with Sn nanoparticles exhibit a blue shift ~ 500 meV indicating a strong interaction between the excitons and the plasmons of the nanohybrids.