Just Accepted
Just Accepted Articles have been posted online after technical editing and typesetting for immediate view. The final edited version with page numbers will appear in the Current Issue soon.
Submit a Manuscript
Super internal electrostatic field effect on self-powered X-ray detector in ferroelectric Pb(Mg1/3Nb2/3)O3-PbTiO3 single crystal
Fuai Hu, Yanru Yin*, Yang Li, Feifei Guo, Jianhui Liu, and Zeliang Gao*
https://doi.org/10.1016/j.cjsc.2025.100863
ABSTRACT
Self-powered X-ray detectors that combine high sensitivity with low detection limits have emerged as a critical focus in radiation detection research. This work pioneers the application of lead magnesium niobate-lead titanate (PMN-PT) single crystal, renowned for its piezoelectric properties, as a material in self-powered X-ray detectors. Due to its super internal electrostatic field, the PMN-PT single crystal self-powered detector exhibits a sensitivity of 346 μC Gyair-1?cm-2?and a detection limit of 0.43 nGyair?s-1?under 40 keV X-rays, which is 17 times and 0.008% as those of the commercial?α-Se detector, respectively. Notably, the detector maintains a high sensitivity of 157 μC Gyair-1?cm-2?even under hard 120 keV, surpassing the performance of most reported perovskite self-powered detectors. Furthermore, the detector exhibits a significantly reduced baseline drift (～1.0 pA) and excellent operational stability in self-powered mode. This study conclusively demonstrates that polar piezoelectric crystals, which incorporate heavy metal elements, are highly promising candidates for developing high-performance self-powered X-ray detectors.
二維碼web.png)
- Address: Fuzhou High & New Technology Industrial Zone, Shangjie, Minhou, Fuzhou, Fujian 350108, China
- Tel: (86)-591-63173769, 63173770
- E-mail: cjsc@fjirsm.ac.cn
CN 35–1112/TQ, ISSN 0254–5861, Online ISSN: 2949-768X Copyright @ 2022 Chinese Journal of Structural Chemistry-www.Chinese Journal of Structural Chemistry.net. All Rights Reserved 閩ICP備2022002645號(hào)-1