Spectroscopic Radiation Detection Using Perovskites

Metal halide perovskites are promising candidates for room temperature gamma-ray spectrum detectors, however, it is challenging to grow high-quality single crystals under operation conditions to make them performance competitive to existing materials. I will report the growth of centimeter-size organic-inorganic lead halide single crystals at high yield from low purity precursors using a relatively low-temperature solution method. By identifying the defects in these materials, a method will be presented to make most perovskite composition to have spectroscopic detection capability. We will report the application of perovskites for both direct and indirect detection. Finally the radiation hardness of these materials under X-ray and gamma-ray will be briefed.