Amine-Salt-Assisted Solution Crystallization of Inorganic Perovskite Single Crystals for High-Performance X-Ray Detection

An amine-salt-assisted solution crystallization strategy is developed to grow high-quality CsPbCl 3 single crystals (SCs) with a size as large as 15 mm, the SCs exhibit a high carrier mobility-lifetime product, low trap density, and large resistivity. The CsPbCl 3 SC X-ray detector achieved a high detection sensitivity of 76,624 μC Gy -1 cm -2 and a low detection limit of 47.9 nGy s -1 , a short response time of 700 μs, therefore realized high contrast X-ray imaging.