journal article·2023-12-20

Methylammonium-Based Quasi-Two-Dimensional Perovskite Single Crystals for Highly Sensitive X-ray Detection and Imaging

Shuaihua Wang, Fang Wang, Xieming Xu, Nan Zhang, Rui Zhang, Lingfei Lv, Xiaoming Jiang, Xin Huang, Shaofan Wu, Yuchong Ding

ACS Applied Materials & Interfaces· Volume 15· Issue 50
Publisher page

Abstract

The strategy of introducing large organic cations into three-dimensional perovskites could reduce the dimensionality of perovskites to form quasi-two-dimensional (quasi-2D) perovskites, resulting in increased stability and reduced detection limits due to less ion migration. Herein, a quasi-2D perovskite single crystal (BDA)(MA) 2 Pb 3 Br 10 (BDA = NH 3 C 4 H 8 NH 3, MA = CH 3 NH 3 ) with a layered structure was grown by the temperature-cooling solution method. The X-ray detector based on the (BDA)(MA) 2 Pb 3 Br 10 single crystal has a sensitivity as high as 1984 μC Gy –1 cm –2 at 55.6 V/mm, and it could detect X-rays as low as 28.12 nGy s –1 at 22.2 V/mm. In addition, the X-ray imaging system based on the single-crystal device easily distinguishes between metals and plastics and exhibits a spatial resolution estimated as 250 μm, indicating the feasibility of (BDA)(MA) 2 Pb 3 Br 10 crystals for X-ray imaging. This research offers a method for the design of quasi-2D layered perovskites and enhances photoelectronic applications in X-ray inspection and imaging.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Perovskite Materials and Applications · Solid-state spectroscopy and crystallography · Luminescence Properties of Advanced Materials

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

Affiliations

Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China

Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian 350108, China

College of Chemistry and Materials, Fujian Normal University, Fuzhou, Fujian 350117, China

University of Chinese Academy of Sciences, Beijing 100049, China

Research & Development Center of Material and Equipment, No. 26 Research Institute, China Electronics Technology Group Corporation, Chongqing 400060, China

Funding

National Key Research and Development Program of China · Youth Innovation Promotion Association of the Chinese Academy of Sciences · Fujian Science and Technology Innovation Laboratory for Optoelectronic Information of China · National Natural Science Foundation of China · Chinese Academy of Sciences

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