Effect of annealing on the surface plasmon resonance of dodecanethiol encapsulated gold nanoparticles Langmuir-Schafer thin films

- Mono and multilayer films of C12-Au NPs were prepared by LS deposition method.
- The samples were annealed at 220 °C for 30, 60 and 120 min.
- The morphological and SPR were investigated before and after annealing.
- AFM images show elongated structures growth in the as-deposited films.
- Annealing for 30 min causes a drastic redshift especially in the multilayer films.