Atomically Thin 2D‐Arsenene by Liquid‐Phased Exfoliation: Toward Selective Vapor Sensing,Advanced Functional Materials

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Atomically Thin 2D‐Arsenene by Liquid‐Phased Exfoliation: Toward Selective Vapor Sensing
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2018-12-12 , DOI: 10.1002/adfm.201807004
Seyyed Mohsen Beladi‐Mousavi ₁ , Amir Masoud Pourrahimi ₁ , Zdeněk Sofer ₁ , Martin Pumera ₁

Affiliation

Phosphorene and antimonene, single‐ or few‐layered (FL) semiconductor materials, have recently attracted enormous attention due to their unique properties, provided by their extreme thinness. Here, a liquid‐phase exfoliation (LPE) procedure to prepare FL arsenene, another member of pnictogens, assisted by sonication and without any additional surfactant is reported. The exfoliation process is performed in various solvents. Among those, N‐methylpyrrolidone is found to provide the highest concentration of stable arsenene sheets. Spectroscopic and microscopic analyses confirm the formation of high‐quality few‐layer arsenene nanosheets with large lateral dimensions. An application of this material for construction of vapor sensor based on electrochemical impedance spectroscopy is demonstrated. The device detects selectively methanol or acetone vapors depending on the selected resonance frequency. The results are highly reproducible, and the vapor sensor has long‐term stability.

中文翻译：

通过液相剥离实现原子薄的2D砷：朝向选择性蒸汽感测

磷和锑的单层或几层（FL）半导体材料由于其极薄的特性而具有独特的性能，最近引起了极大的关注。在此，报道了在超声处理的辅助下，无需任何其他表面活性剂的液相剥离法（LPE），以制备光合作用的另一种成员FL砷。剥离过程在各种溶剂中进行。其中，N发现甲基吡咯烷酮可提供最高浓度的稳定砷片。光谱和显微镜分析证实形成了具有大横向尺寸的高质量的几层砷纳米片。展示了该材料在基于电化学阻抗谱的蒸汽传感器结构中的应用。该设备根据所选的共振频率选择性地检测甲醇或丙酮蒸气。结果具有很高的重现性，并且蒸汽传感器具有长期稳定性。

更新日期：2018-12-12

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