探测器
X射线探测器
平面的
光电子学
制作
材料科学
光学
图像分辨率
灵敏度(控制系统)
物理
计算机科学
电子工程
医学
工程类
计算机图形学(图像)
替代医学
病理
作者
Henning Mescher,Fabian Schackmar,Robert Huber,Helge Eggers,M. S. Zubér,Elias Hamann,Georg Gramlich,Julian Dangelmaier,Qiaoshuang Zhang,Andres Georg Rösch,Thomas Zwick,Gerardo Hernández-Sosa,Ulrich W. Paetzold,Uli Lemmer
标识
DOI:10.1038/s41528-023-00240-9
摘要
Abstract X-ray detectors are of pivotal importance for the scientific and technological progress in a wide range of medical, industrial, and scientific applications. Here, we take advantage of the printability of perovskite-based semiconductors and achieve a high X-ray sensitivity combined with the potential of an exceptional high spatial resolution by our origami-inspired folded perovskite X-ray detector. The high performance of our device is reached solely by the folded detector architecture and does not require any photolithography. The design and fabrication of a foldable perovskite sensor array is presented and the detector is characterized as a planar and as a folded device. Exposed to 50 kVp−150 kVp X-ray radiation, the planar detector reaches X-ray sensitivities of 25−35 μ C/(Gy air cm 2 ), whereas the folded detector achieves remarkably increased X-ray sensitivities of several hundred μ C/(Gy air cm 2 ) and a record value of 1409 μ C/(Gy air cm 2 ) at 150 kVp without photoconductive gain. Finally, the potential of an exceptional high spatial resolution of the folded detector of more than 20 lp/mm under 150 kVp X-ray radiation is demonstrated.
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