Silver-chalcogenide glass flexible sensors were tested to study the impact of physical design parameters on the performance characteristics of the sensors in response to ionizing radiation. Results show that by changing lateral spacing between adjacent electrodes, the limit of detection and dynamic range can be regulated. Likewise, by changing the diameter of the electrodes, the sensor high and low resistance states can be adjusted to a desired range. In contrast, the influence of the electrode diameter on the sensor performance characteristics was found to have less of an impact on sensor performance. Mechanisms for ion transport and reactions are investigated using TCAD simulations in which the standard statistics and transport equations for free carriers are simultaneously solved. The simulation results are qualitatively in a good agreement with experimental data.

Original languageEnglish (US)
Article number7514924
Pages (from-to)2137-2144
Number of pages8
JournalIEEE Transactions on Nuclear Science
Issue number4
StatePublished - Aug 2016


  • Chalcogenide glass (ChG)
  • TCAD simulation
  • dosimetry
  • dynamic range
  • flexible radiation sensor
  • gamma rays
  • limit of detection
  • polyethylene napthalate (PEN)

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering
  • Electrical and Electronic Engineering


Dive into the research topics of 'Flexible Ag-ChG Radiation Sensors: Limit of Detection and Dynamic Range Optimization Through Physical Design Tuning'. Together they form a unique fingerprint.

Cite this