Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 1, Issue 7, Pages 1396-1403Publisher
AMER CHEMICAL SOC
DOI: 10.1021/am900087s
Keywords
silicon nanowires; silver nanoparticles; SERS; high sensitivity
Funding
- Agence Nationale de la Recherche (ANR)
- Centre National de la Recherche Scientifique (CNRS)
- Nord-Pas-de Calais
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Silver nanoparticles (Ag NPs) were chemically deposited on silicon nanowires (SiNWs), prepared using the vapor-liquid-solid (VLS) growth mechanism, using an in situ electroless metal deposition technique. The resulting SiNWs/Ag NPs composite interfaces showed large Raman scattering enhancement for rhodamine 6G (R6G) with a detection limit of 10(-14) M and an enhancement factor of 2.3 x 10(8). This large enhancement factor was attributed to the presence of hot spots on the SiNWs/Ag NPs substrate.
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