Bi₂O₃ Nanoparticle-Loaded Plastic Scintillator for High-Energy X-Ray Detection

Development of plastic scintillators loaded with perovskite quantum dots and wavelength shifting molecules

“…14,15) Recently, loading of insulator nanoparticles of compounds containing heavy elements has been proven to be advantageous over loading of organometallic compounds of heavy elements. 16) To achieve the fast response of the plastic scintillators loaded with nanoparticles, non-emissive nanoparticles of ZrO 2 , 17,18) HfO 2 , [19][20][21][22] Gd 2 O 3 , 23) YbF 3 , 24) Bi 2 O 3 , [25][26][27][28] and HfO 2 -SiO 2 mixed amorphous phase, [29][30][31] have been loaded, which results in a reduced scintillation light yield. Plastic scintillators loaded with emissive nanoparticles having a slow scintillation decay component would have worse detection capability at high counting rate.…”