Liquid-phase exfoliation of violet phosphorus for electronic applications
Liquid-phase exfoliation of violet phosphorus for electronic applications
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DOI：
10.1002/smm2.1037
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发表时间：
2021-06-01
期刊：
影响因子：
20.4
通讯作者：
Lau, Shu Ping
中科院分区：
文献类型：
--
作者：
Lin, Shenghuang;Lai, Wai Kin;Lau, Shu Ping
大规模生产二维（2D）材料仍然是其实际应用的关键。具有宽禁带的紫磷（VP）加速并拓宽了元素磷在光电子学中的潜在应用。在这里，我们展示了稳定分散在多种溶剂中的可溶液加工的紫磷薄片的可规模化生产。剥离的VP薄片具有厚度依赖的可见光致发光特性，这弥补了黑磷的缺点。同时，VP基场效应晶体管显示出相对于其他液相剥离的2D材料具有竞争力的电性能。我们的研究为基于大规模VP薄片的光学器件，储能，催化和钠电池的广泛应用铺平了道路。
Large-scale production of two-dimensional (2D) materials still is a crucial point toward its practical applications. Violet phosphorus (VP) with a wide bandgap accelerates and broadens the potential applications of elemental phosphorus in optoelectronics. Here, we demonstrate the scalable production of solution-processable violet phosphorus flakes stably dispersed in several solvents. The exfoliated VP flakes exhibit thickness-dependent visible photoluminescence characteristics, which covers the shortcoming of black phosphorus. Meanwhile, the VP-based field-effect transistor reveals relatively competitive electrical properties to other liquid-phase exfoliated 2D materials. Our study paves the way for a wide range of applications of optical devices, energy storage, catalysis, and sodium batteries based on large-scale VP flakes.