Sers in microchannels from the integration of a nanostructured silver layer by electrodeposition and study of the photothermal effect

Brice Torti (1) , Yannick Hallez (1) , Benjamin Erable (1) , Fabien Chauvet (1)

1 LGC - Laboratoire de Génie Chimique

A new method is described and used to integrate an immobilized Surface Enhanced Raman Spectroscopy (SERS) substrate in microchannels. This is based on the direct and fast electrodeposition of an adherent Ag layer on a microchannel wall. This layer exhibits a spatially uniform nanostructure allowing the enhancement of the Raman signal by an analytical factor of 2.10+4 for crystal violet molecules. The microsystem thus elaborated is used to examine the photothermal effect, induced by the laser used, on the SERS spectra under liquid flow.

Mots clés: SERS; Photothermal Effect; Electrodeposition; Chemical Imaging; Heat Transfer; Adsorption

Domaines: Mécanique des matériaux [physics.class-ph]

Brice Torti, Yannick Hallez, Benjamin Erable, Fabien Chauvet. Sers in microchannels from the integration of a nanostructured silver layer by electrodeposition and study of the photothermal effect. 25th International Conference on Miniaturized Systems for Chemistry and Life Sciences (µTAS 2021), Oct 2021, Palm Springs, United States. pp.1-2. ⟨hal-03467837⟩