Universal growth of perovskite thin monocrystals from high solute flux for sensitive self-driven X-ray detection

Da Liu, Yichu Zheng, Xin Yuan Sui, Xue Feng Wu, Can Zou, Yu Peng, Xinyi Liu, Miaoyu Lin, Zhanpeng Wei, Hang Zhou, Ye-Feng Yao, Sheng Dai, Haiyang Yuan, Hua Gui Yang, Shuang Yang () and Yu Hou ()
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Da Liu: East China University of Science and Technology
Yichu Zheng: Shanghai University
Xin Yuan Sui: East China University of Science and Technology
Xue Feng Wu: East China University of Science and Technology
Can Zou: East China University of Science and Technology
Yu Peng: East China University of Science and Technology
Xinyi Liu: East China University of Science and Technology
Miaoyu Lin: East China University of Science and Technology
Zhanpeng Wei: East China University of Science and Technology
Hang Zhou: East China Normal University
Ye-Feng Yao: East China Normal University
Sheng Dai: East China University of Science and Technology
Haiyang Yuan: East China University of Science and Technology
Hua Gui Yang: East China University of Science and Technology
Shuang Yang: East China University of Science and Technology
Yu Hou: East China University of Science and Technology

Nature Communications, 2024, vol. 15, issue 1, 1-10

Abstract: Abstract Metal-halide perovskite thin monocrystals featuring efficient carrier collection and transport capabilities are well suited for radiation detectors, yet their growth in a generic, well-controlled manner remains challenging. Here, we reveal that mass transfer is one major limiting factor during solution growth of perovskite thin monocrystals. A general approach is developed to overcome synthetic limitation by using a high solute flux system, in which mass diffusion coefficient is improved from 1.7×10–10 to 5.4×10–10 m2 s–1 by suppressing monomer aggregation. The generality of this approach is validated by the synthesis of 29 types of perovskite thin monocrystals at 40–90 °C with the growth velocity up to 27.2 μm min–1. The as-grown perovskite monocrystals deliver a high X-ray sensitivity of 1.74×105 µC Gy−1 cm−2 without applied bias. The findings regarding limited mass transfer and high-flux crystallization are crucial towards advancing the preparation and application of perovskite thin monocrystals.

Date: 2024
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DOI: 10.1038/s41467-024-46712-y

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