Advances in perovskite-based scintillation materials for gamma-ray spectroscopy: issues and opportunities

:4% Eu demonstrated exceptional results with a light yield (LY) of 198 000 photons per MeV and an energy resolution (ER) of 1.8% at 1332 keV, which are much better than the values obtained for conventional scintillators. In addition, fine-tuning of the composition in the host structure and incorporating suitable dopants significantly contribute to improving the performance of scintillators. Finally, this investigation identifies certain limitations such as the challenges in crystal growth, limited structural and dopant variety, underreported stability and radiation hardness, and a predominant focus on specific gamma energies, particularly 662 keV. In addition, despite the long decay times of some scintillators, research has yet to fully utilize this advantageous property in imaging systems. Moreover, standardized testing protocols are essential to ensure the authentication of their performance all over the world. Future research should focus on addressing existing challenges to ease the transition of perovskite-based scintillators from laboratory to commercial use.