Haixing Meng is a doctoral candidate at the School of Integrated Circuits and Electronics, Beijing Institute of Technology. His research interests focus encompass both indirect and direct X-ray detector.
Ying Li received her Ph.D. degree in condensed matter physics at Zhengzhou University. Then, she worked at the Institute of Semiconductors, Chinese Academy of Sciences as a postdoctoral fellow, under the supervision of Professor Guozhen Shen. She is currently an associate professor of School of Integrated Circuits and Electronics, Beijing Institute of Technology. Her research interests relate to the perovskite-based optoelectronic devices for vision sensing.
Guozhen Shen received his Ph.D. degree (2003) in Chemistry from University of Science and technology of China. He is currently a professor of School of Integrated Circuits and Electronics, Beijing Institute of Technology. His research focused on flexible electronics and printable electronics, including transistors, photodetectors, sensors and flexible energy storage and conversion devices.
Fig. 1.
(Color online) (a) Schematic diagram of flexible active-matrix X-ray detector based on 2D materials. (b) The I−V characteristics of the graphene/MoS2 photodetector under optical powers of 8.5 and 24.0 μW/cm2 (similar to the emission power of scintillators). (c) Schematic diagram of the scintillator and backplane integration device. (d) The functional relationship between X-ray tube voltage and output current based on graphene/MoS2 photodetector. (e) X-ray radiation stability of flexible X-ray detectors (72 mGy). (f) Uniformity of photocurrent and dark current based on flexible X-ray detectors. (g) Planar X-ray imaging and curved X-ray imaging based on flexible active-matrix X-ray detector toward the cylinder having a '+'-shaped hole[16].
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