Bakar, Norhayati Abu; Salleh, Muhamad Mat; Umar, Akrajas Ali; Shapter, Joseph George
Silver nanoparticles deposited on quartz substrates are widely used as SERS substrates. The nanoparticles can be deposited directly from colloidal solution by dipping technique. However, the adhesion of the particles on the quartz surface is very poor. Normally the substrate is pre-treated with hydroxylation or silanisation process. In this paper, we have demonstrated that the application of the sequence pre-treatment hydroxylation and silanisation have improved the density of silver nanoplates desposited on the quartz surface.
• Sequence hydroxylation and silanisation pre-treatment assists the deposition of the nanoplate on the surface.
• Various immersion times of the quartz surface into the colloidal nanoplates determined size distributions and density surface of the nanoplates on the surface.
Direct deposition of colloidal silver nanoplates on quartz surface using a self–assembly technique