Solid electrolytes based on chalcogenide glasses have been one of the most promising candidates for the next generation non-volatile memories. Here we propose a new application of chalcogenide solid electrolytes for low cost, high performance microelectronic radiation sensor that reacts to γ-radiation to produce an easily measurable change in electrical resistance. The active layer material is Ag-doped GeS thin film glasses and several compositions of GeS base glasses were tested for best resistive sensing capability. Energy-dispersive X-ray spectroscopy (EDS) was used for elemental analysis and Raman scattering spectroscopy was measured to determine the structural details and radiation induced structural changes. We also present initial electrical measurement results with test devices.
Chen, Ping; Ailavajhala, Mahesh; Mitkova, Maria I.; Tenne, Dmitri A.; Esqueda, Ivan Sanchez; and Barnaby, Hugh. (2011). "Structural Study of Ag-Ge-S Solid Electrolyte Glass System for Resistive Radiation Sensing". 2011 IEEE Workshop on Microelectronics and Electron Devices (WMED), 1-4. http://dx.doi.org/10.1109/WMED.2011.5767271