Dual Gamma/Neutron Sensing with Methylammonium Lead Tribromide Perovskite

This report several techniques are under investigation to improve the spectroscopic capability of methylammonium lead tribromide perovskite semiconductors (CH3NH3PbBr3, or MAPB). These techniques include birefringence level measurements used to evaluate the quality of the single crystals and increase fabrication success rate of radiation responsive crystals. In addition, several characterization techniques are performed on a partial cation-substitution of MAPB with lithium-6 to analyze the structure and surface properties of the single crystal produced. Finally, we will present the thermal neutron sensing results from a MAPB crystal substituted with lithium-6.