About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Neutron and X-ray Scattering in Materials Science
|
Presentation Title |
L-56: Plastic Scintillators Using Nanocrystal Emitters |
Author(s) |
Gerard Ducharme, Amanda Elizabeth Graff |
On-Site Speaker (Planned) |
Gerard Ducharme |
Abstract Scope |
Plastic scintillators suffer from low efficiency and poor signal separation, hampering source discrimination. Inclusion of wavelength shifters and heavy atom dopants have allowed for improvements in these devices. Our research has shown that inclusion of II-VI based core-shell giant quantum dots (gQDs) into the polymer matrix greatly improves the luminescence efficiency and signal separation over previous fluor doped polymeric scintillators. The efficiency arises from a combination of the heavy atom quantum dots that are capped to prevent self-attenuation and can more easily interact with stimuli than traditional fluors, as well as the presence of a triplet-triplet annihilating fluor which boosts emission efficiency significantly. The goal of this research is to develop an additive manufacturing process to more consistently and easily form highly efficient and cost-effective scintillators. |
Proceedings Inclusion? |
Planned: |
Keywords |
Composites, Nanotechnology, Characterization |