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journal article·2024-08

Achieving Low‐Dose Rate X‐Ray Imaging Based on 2D/3D‐Mixed Perovskite Films

Jingda Zhao, Xin Wang, Qi Cheng, Yubing Xu, Yuzhu Pan, Yuwei Li, Zhiwei Zhao, Zhuoya Zhu, Jing Chen, Jun Wu, Qing Li, Jianming Zhou, Byung Seong Bae, Gabby Sarusi, Ying Zhu, Xiaobao Xu, Wei Lei, Xiaobing Zhang

Small· Volume 20· Issue 33
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Source abstract

Abstract

Abstract X‐ray detection and imaging are widely used in medical diagnosis, product inspection, security monitoring, etc. Large‐scale polycrystalline perovskite thick films possess high potential for direct X‐ray imaging. However, the notorious problems of baseline drift and high detection limit caused by ions migration are still remained. Here, ion migration is reduced by incorporating 2D perovskite into 3D perovskite, thereby increasing the ion activation energy. This approach hinders ion migration within the perovskite film, consequently suppressing baseline drift and reducing the lowest detection limit(LOD) of the device. As a result, the baseline drifting declines by 20 times and the LOD reduces to 21.1 nGy s−1, while the device maintains a satisfactory sensitivity of 5.6 × 103 µC Gy−1 cm−2. This work provides a new strategy to achieve low ion migration in large‐scale X‐ray detectors and may provide new thoughts for the application of mixed‐dimension perovskite.
Source: crossref · Quality: baseline

Research context

Electronic materials

OpenAlex topics: Perovskite Materials and Applications · Ga2O3 and related materials · Electronic and Structural Properties of Oxides

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Joint International Research Laboratory of Information Display and Visualization School of Electronic Science and Engineering Southeast University Nanjing 210096 China

E‐Xray Electronic Co. Ltd. Suzhou 215131 China

Department of Electronics & Display Engineering Hoseo University Hoseo Ro 79 Asan Chungnam 31499 Republic of Korea

Department of Photonics and Electro‐Optics Engineering School of Electrical and Computer Engineering Ben‐Gurion University of the Negev Beer Sheva 8410501 Israel

E‐spectrum Optoelectronic Co. Ltd. Suzhou 215111 China

Funding

National Key Research and Development Program of China · Science and Technology Innovation Talents in Universities of Henan Province · Natural Science Foundation for Young Scientists of Shanxi Province

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