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Publications
Publications (13)
Engineering the plasmonic nanohybrid structures to provide the advancement in their optical and photocatalytic profiles is one of the important aspects for the development of several environmental and energy applications. Plasmonic nanohybrids, integration of semiconductors and noble nanoparticles provide efficient charge separation due to Schottky...
In this study, we report the ultra-trace analyte detection from the complex mixtures of contaminants employing hybrid Sn–Au SERS substrates composed of AuNPs deposited on textured Sn substrates fabricated through a laser-ablation synthesis strategy. The hierarchically arranged sharp micro-pyramids with densely decorated micro/nano-surface features...
Multibranched silver nanostructures (AgNSts) have attracted much attention as promising candidates for surface‐enhanced Raman spectroscopy (SERS) due to their unique plasmonic properties. We have chemically synthesized silver nanodendrites (AgNDs) and silver stars (AgSs) and investigated their SERS performance for trace‐level molecule detection. Hi...
We report a facile synthesis procedure of multi-spiked star-shaped silver structures with sharp morphological features and broad plasmonic absorption for the fabrication of surface-enhanced Raman scattering (SERS) substrates. The multi-branched morphology of silver stars (AgSs) provides copious hot spots on SERS-active substrates to detect ultra-lo...
Metal nanoparticles with highly branched morphologies are extremely advantageous owing to their unique structural properties and applications in sensing, imaging, and catalysis. In this work, anisotropically branched metal nanostructures are fabricated via a simple and one-step chemical reduction method. The fabricated nanostructures display highly...
Metal nanostructures with highly branched morphologies are attractive due to their fascinating plasmonic properties which are related to their unique morphological features. In this work a simple fabrication methodology is used for fabrication of surface-enhanced Raman spectroscopy (SERS) substrates composed of branched silver nanostructures with d...
We present a simple, quick and one-step methodology based on nano-second laser direct writing for the fabrication of micro-nanostructures on silicon surface. The fabricated surfaces suppress the optical reflection by multiple reflection due to light trapping effect to a much lower value than polished silicon surface. These textured surfaces offer h...
Two dimensional periodic arrays of microsquares of different dimensions are fabricated by direct ns-laser writing on silicon substrate. The micro/nano structures pattern on the Si surface significantly minimizes the optical reflection by light trapping effect, but enhances the SERS signal intensity of analyte dye molecule Rhodamine B (RhB) and Meth...
Light collection efficiency and specific molecular detection are crucial factors for the performance of bio-chemical molecule sensors. In this paper, the low optical-reflection silicon (Si) substrates which combine reduced optical reflectivity by light trapping effect and high Raman enhancement ability of gold nanoparticles (Au-NPs) coated textured...
