Abstract
Lead-free double perovskite has become a candidate material for green optoelectronic applications due to its low toxicity and human-friendly characteristics. Double perovskite has a huge application prospect in the field of optical detectors, especially X-ray detection in recent years. By introducing propylammonium (PA), we have grown a larger size 2D double perovskite (PA)4AgBiBr8 single crystal. While inheriting the high stability of the 2D material, it also exhibits good X-ray response. The constructed planar Au/(PA)4AgBiBr8/Au X-ray detector displays a sensitivity of 6.89 μC Gy−1 cm−2 under 40 V bias voltage and 40 keV X-ray radiation.
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