Controlled metallization of ion-exchanged glasses by thermal poling

Igor Reduto, Ekaterina Babich, Svetlana A. Zolotovskaya, Amin Abdolvand, Andrey Lipovskii, Valentina Zhurikhina

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Abstract

We present studies of the formation of silver nanoparticles (NPs) in silver-sodium ion-exchanged glasses by a combination of thermal poling and nanosecond pulsed laser irradiation at 355 nm. In poling, silver ions drift deeper into the glass and become separated from the glass surface by a poled layer depleted in cations. Performed measurements have indicated poling-induced broadening of silver ions depth distribution. Laser irradiation reduces silver ions to atomic silver via breaking silver – non-bridging oxygen bonds, extraction of electrons from the non-bridging oxygen atoms and capturing these electrons and electrons generated via multi-photon absorption in the glass by silver ions. The depleted layer limits diffusion of silver atom towards glass surface and, as a consequence, formation of silver NPs on the surface of poled glasses. It is shown that thermal poling mode allows one to control formation of silver NPs of glass surface.
Original languageEnglish
JournalJournal of Physics: Condensed Matter
Early online date16 Sep 2021
DOIs
Publication statusE-pub ahead of print - 16 Sep 2021

Keywords

  • Glass poling
  • surface metallization
  • silver nanoparticles
  • ion-exchange
  • laser inscribing

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