Speaker
Description
Quantum dots exhibit size-dependent characteristics because of quantum confinement at the nanoscale. This leads to the possibility of controlling their electronic and optical properties, including the band gap. While these tunable properties of quantum dots have been exploited in photonic applications, their use in radiation detection remains comparatively unexplored. When illuminated by ionizing radiation, quantum dots can be excited to fluoresce at an emission wavelength determined by the band gap of the material, offering a potential route toward radiation detector concepts tailored to specific measurement needs.
In this work, we use Stopping and Range of Ions in Matter (SRIM) and Geant4 simulations to examine the applications of quantum dots as functional materials in radiation detection systems, with a focus on how material selection, particle size, and placement within a detector impact energy deposition and light production. Initial simulation results indicate that source choice and detector geometry play a key role in determining the effectiveness of quantum dots as functional components in radiation detection systems. In this presentation, we provide highlights of our results on design considerations and parameter regimes that may enable improved performance in radiation detectors incorporating quantum dots.
| Keyword-1 | Quantum Dots |
|---|---|
| Keyword-2 | Detection |
| Keyword-3 | Scintillation |