Single sea urchin-MoO₃ nanostructure for surface enhanced Raman spectroscopy of dyes.

ABSTRACT: Enhancing the surface-enhanced Raman scattering (SERS) activity of semiconductor metal oxide nanostructures by controlling the morphology and oxygen vacancies towards trace detection of organics is of significant interest. In this study, MoO₃ with a novel sea urchin morphology is synthesized employing chemical bath deposition and consists of hundreds of ∼15 μm long spikes originating from the core forming 20-40 micron globular structures. The spikes taper to form 20 nm sharp tips. SERS of rhodamine 6G (R6G) over MoO₃ sea urchins has been investigated and compared to that of 1D h-MoO₃ nanorod arrays. The SERS activity is morphology dependent and the sea urchin-like morphology exhibits higher SERS activity with an enhancement factor (EF) of the order 10⁵

SUBMITTER: Prabhu B R 

PROVIDER: S-EPMC9418698 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature