Fig. 4: X-ray detection performance.
From: Ligand assisted growth of perovskite single crystals with low defect density
a Device structure scheme and a photo of the as-fabricated device. b Dark current density of the crystals under a same electric field of 270 V cm-1 at ambient air without encapsulation. The crystals were both polished and passivated by oxysalt. The thickness of the crystal with DPSI here is 3.7 mm, and the applied bias was −100 V. c Device output current under 60 kVp X-ray of different dose rate with noise limit. d Device output current under 100 kVp and 120 kVp X-rays. This crystal thickness is 2.4 mm, and the applied bias was −100 V.
