Amine-Salt-Assisted Solution Crystallization of Inorganic Perovskite Single Crystals for High-Performance X-Ray Detection

IF 36.3 1区材料科学 Q1 Engineering

Nano-Micro Letters Pub Date : 2026-07-01 DOI:10.1007/s40820-026-02272-y

Yujia Jiang, Depeng Chu, Jiacheng Pi, Naiming Liu, Xueni Sun, Yunxia Zhang, Ziyang Feng, Yuquan Wang, Wenjie Chen, Xinxin Wang, Jingyun Tian, Lei Zhao, Binxia Jia, Ruixin Shi, Yihui He, Yucheng Liu, Shengzhong (Frank) Liu

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引用次数: 0

Abstract

Highlights

An amine-salt-assisted solution crystallization strategy is developed to grow high-quality CsPbCl₃ single crystals (SCs) with a size as large as 15 mm, the SCs exhibit a high carrier mobility-lifetime product, low trap density, and large resistivity.
The CsPbCl₃ SC X-ray detector achieved a high detection sensitivity of 76,624 μC Gy^-1 cm^-2 and a low detection limit of 47.9 nGy s^-1, a short response time of 700 μs, therefore realized high contrast X-ray imaging.

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用于高性能x射线检测的无机钙钛矿单晶胺盐辅助溶液结晶。

无机钙钛矿CsPbCl3单晶（SCs）由于其高x射线吸收、优异的光电性能以及优异的化学和热稳定性，有望用于稳定和高性能的x射线检测。然而，通过低能耗溶液法生长的CsPbCl3 SCs的尺寸仍然限制在1毫米以下，主要是因为原料在溶剂中的溶解度有限以及缺乏有效的生长技术。在这项工作中，开发了一种胺盐辅助溶液结晶策略，以生长高质量的CsPbCl3 SCs，尺寸可达15 mm。通过在胺盐和不溶性原料之间构建氢键相互作用，前体溶解度提高了13倍，从而实现了这种显着的尺寸改进。因此，sc具有高μτ积（6.3 × 10-3 cm2 V-1）、低阱密度（2.9 × 1010 cm-3）和大电阻率（1.7 × 109 Ω cm）的特性。因此，即使在低偏置电压下，SC探测器也实现了创纪录的76,624 μC Gy-1 cm-2的高灵敏度和47.9 μC Gy-1的低检测限，从而实现了高对比度的x射线成像。这种巧妙且可执行的低温溶液结晶策略与优越的x射线探测性能相结合，使CsPbCl3 SCs有望推动安全辐射探测系统的低成本发展。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nano-Micro Letters NANOSCIENCE & NANOTECHNOLOGY-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

32.60

自引率

4.90%

发文量

981

审稿时长

1.1 months

期刊介绍： Nano-Micro Letters is a peer-reviewed, international, interdisciplinary, and open-access journal published under the SpringerOpen brand. Nano-Micro Letters focuses on the science, experiments, engineering, technologies, and applications of nano- or microscale structures and systems in various fields such as physics, chemistry, biology, material science, and pharmacy.It also explores the expanding interfaces between these fields. Nano-Micro Letters particularly emphasizes the bottom-up approach in the length scale from nano to micro. This approach is crucial for achieving industrial applications in nanotechnology, as it involves the assembly, modification, and control of nanostructures on a microscale.