Metal-Free 1D MPAZE-N2H5I3 Perovskite for X-Ray Detection With Enhanced Stability and Sensitivity

IF 7.2 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Advanced Optical Materials Pub Date : 2026-10-16 Epub Date: 2026-09-23 DOI:10.1002/adom.71827

Qing Zhou, Shenghuan Shi, Yuhao Kuang, Jiawen Cheng, Youkui Xu, Zhizai Li, Zhenhua Li, Zhiwen Jin

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引用次数: 0

Abstract

Metal-free halide perovskites (MFPs) hold promise for x-ray detection due to their eco-friendliness and tunable optoelectronic properties. However, their practical applications are limited by challenges such as insufficient structural stability, inefficient charge transport, and suboptimal detection sensitivity, which restrict their competitiveness against traditional metal-based detectors. Here, we report the design, synthesis, and characterization of MPAZE-N₂H₅I₃, a novel MFP single crystal optimized via A-site cation engineering to enhance structural stability and charge transport properties. The crystal exhibits a high resistivity of 1.28 × 10¹³ Ω·cm and a low limit of detection (LoD) of 0.109 µGy_air⁻¹ at 10 V bias (minimum LoD), achieving an x-ray imaging sensitivity of 2053 µC·Gy_air⁻¹·cm⁻² at 20 V bias. These results validate its potential for next-generation eco-friendly x-ray detection technologies.

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无金属1D MPAZE-N2H5I3钙钛矿用于x射线检测，具有增强的稳定性和灵敏度

无金属卤化物钙钛矿（mfp）由于其生态友好和可调谐的光电特性而有望用于x射线检测。然而，它们的实际应用受到诸如结构稳定性不足、电荷传输效率低下和检测灵敏度欠佳等挑战的限制，这些挑战限制了它们与传统金属基探测器的竞争力。在这里，我们报道了一种新型MFP单晶MPAZE-N2H5I3的设计、合成和表征，这是一种通过a位阳离子工程优化的新型MFP单晶，以提高结构稳定性和电荷输运性能。该晶体在10v偏置下具有1.28 × 1013 Ω·cm的高电阻率和0.109 μ Gyair−1的低检测限（LoD）（最小LoD），在20v偏置下实现2053 μ C·Gyair−1·cm−2的x射线成像灵敏度。这些结果验证了其下一代环保x射线探测技术的潜力。

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

Advanced Optical Materials MATERIALS SCIENCE, MULTIDISCIPLINARY-OPTICS

CiteScore

13.70

自引率

6.70%

发文量

883

审稿时长

1.5 months

期刊介绍： Advanced Optical Materials, part of the esteemed Advanced portfolio, is a unique materials science journal concentrating on all facets of light-matter interactions. For over a decade, it has been the preferred optical materials journal for significant discoveries in photonics, plasmonics, metamaterials, and more. The Advanced portfolio from Wiley is a collection of globally respected, high-impact journals that disseminate the best science from established and emerging researchers, aiding them in fulfilling their mission and amplifying the reach of their scientific discoveries.