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- W3100671213 abstract "Surface-enhanced Raman scattering (SERS) with unique molecular vibrational fingerprints for identifying analytes provides an effective spectroscopic approach for the detection of trace molecules in biomedical/analytical fields. Although a great amount of efforts has been devoted to developing various SERS substrates with hierarchical micro/nanostructures, challenges remain in completely concentrating the target molecules within a sensitive area and thereby enhancing detection sensitivity. Here, we report trace molecular detection using superhydrophobic microcrater array as surface-enhanced Raman substrate (SMA-SERS). The hierarchically ordered microcrater array with plasmonic nanoparticle clusters is quickly obtained by the two-step process of femtosecond laser texturing and magnetron sputtering. The resultant substrates with hierarchical micro-/nanostructures show excellent superhydrophobicity with a contact angle above 150° and satisfactory plasmonic nanostructures with the easily attainable Raman signal enhancement factor of ~4.82 × 108. The signals on the SMA-SERS maintain uniformity with a relative standard deviation of <15%. These findings manifest that the SMA-SERS is an extraordinary strong candidate for obtaining high-quality and reliable SERS, facilitating a widespread use of SERS for practical applications." @default.
- W3100671213 created "2020-11-23" @default.
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- W3100671213 date "2021-03-01" @default.
- W3100671213 modified "2023-10-14" @default.
- W3100671213 title "Hierarchically ordered microcrater array with plasmonic nanoparticle clusters for highly sensitive surface-enhanced Raman scattering" @default.
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- W3100671213 doi "https://doi.org/10.1016/j.optlastec.2020.106719" @default.
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