Thin Ge-Se Films as a Sensing Material for Radiation Doses

Mahesh S. Ailavajhala, Tyler Nichol, Darryl P. Butt, Maria Mitkova

Research output: Contribution to journalArticlepeer-review

Abstract

This work focuses on the study of Ge rich phases in the Ge–Se chalcogenide glass system. Radiation induced effects particularly related to Ag diffusion in the glasses under the influence of different doses of γ radiation are investigated and documented. Raman spectroscopy, X-ray diffraction, energy dispersive X-ray spectroscopy, scanning electron microscopy, and atom force microscopy confirmed the occurrence of radiation-induced Ag diffusion and oxidation of the hosting chalcogenide thin films. This causes Ag surface deposition and structural reorganization of the hosting backbone, and affects the electrical performance of the films. It is suggested that the sensing ability of the thin films can be substantially influenced by the encapsulating the sensing elements to avoid the oxidation of the chalcogenide film.

Original languageAmerican English
JournalMaterials Science and Engineering Faculty Publications and Presentations
StatePublished - 1 Jul 2014

Keywords

  • chalcogenide glasses
  • radiation-induced Ag diffusion
  • radiation-induced effects

EGS Disciplines

  • Materials Science and Engineering

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