Photo-assisted adsorption of gold nanoparticles onto a silicon substrate

Ivan V. Malyar, Dmitry A. Gorin, Svetlana Santer, Svetlana V. Stetsyura

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


We report on a photo-assisted adsorption of gold nanoparticles on a silicon substrate studied using atomic-force microscopy and secondary ion mass-spectrometry. Depending on a silicon conductivity type (n-Si or p-Si), the amount of photo-assisted adsorbed gold nanoparticles either increases (n-Si) or decreases (p-Si) on irradiation. In addition, the impacts of a cationic polyelectrolyte monolayer and adsorption time were also revealed. The polyelectrolyte layer enhances the adsorption of the gold nanoparticles but decreases the influence of light. The results of the photo-assisted adsorption on two types of silicon wafer were explained by electron processes at the substrate/solution interface.

Original languageEnglish
Article number133104
JournalApplied Physics Letters
Issue number13
Publication statusPublished - 27 Mar 2017
Externally publishedYes


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