25 April 2022
In order to improve performance of catalysts, it is important to carefully monitor the processes that take place around them. Surface-enhanced Raman spectroscopy (SERS) is a detection method that can be used to do this. However, to be able to receive a useful signal, nanoparticles (NPs) must be added to the sample to amplify the signal.
In his research, ARC CBBC researcher Harith Gurunarayanan investigated how the properties of the NPs can be tuned, which helps in optimization of the SERS performance. He focused on the assembly of silica coated gold nanorods in spherical structures called supraparticles.
Harith studied how the interparticle distance, porosity and optical properties of the supraparticles can be tuned via the shell properties and the core size of the individual silica coated gold nanorods. He published his work in Advanced Functional Materials, learn more here: https://doi.org/10.1002/adfm.202200148