Synthesis of Highly Stable One-Dimensional Black Phosphorus/h-BN Heterostructures: A Novel Flexible Electronic Platform
Synthesis of Highly Stable One-Dimensional Black Phosphorus/h-BN Heterostructures: A Novel Flexible Electronic Platform
复制标题
高稳定一维黑磷/h-BN异质结构的合成：一种新型柔性电子平台
DOI：
10.1088/0256-307x/37/7/076203
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发表时间：
2020
影响因子：
3.5
通讯作者：
Xiaobing Liu
中科院分区：
文献类型：
--
作者：
Jingyan Song;Shuai Duan;Xin Chen;Xiangjun Li;Bingchao Yang;Xiaobing Liu
层状黑磷（BP）具有带隙可调、载流子迁移率高、面内各向异性强等特点，近年来成为一种很有前途的半导体材料。一维（1D） BP材料由于其沿特定方向的电荷和声子传输而在电子和热器件中的应用具有吸引力。然而，迄今为止，一维BP材料的制造仍然是难以捉摸的。本文首次在高压高温条件下，采用六方氮化硼（h-BN）纳米管选择性复合材料成功合成了类纳米管BP，并对其进行了表征。通过调整实验合成参数，制备的一维BP/h-BN复合材料具有柔性的直径、长度和厚度。有趣的是，值得注意的是，在异质结构的形成下，我们的BP样品的稳定性得到了显著提高，这可以积极地促进其商业应用。我们的实验工作，结合第一性原理计算，提出了一种新的可扩展策略，设计一维管状BP/h-BN异质结构，该异质结构有望成为柔性和高效电子平台的候选者。
Layered black phosphorus (BP) has recently emerged as a promising semiconductor because of its tunable band gap, high carrier mobility and strongly in-plane anisotropic properties. One-dimensional (1D) BP materials are attractive for applications in electronic and thermal devices, owing to their tailored charge and phonon transports along certain orientations. However, the fabrication of 1D BP materials still remains elusive thus far. We herein report the successful synthesis and characterization of nanotube-like BP for the first time by a selective composite with hexagonal boron nitride (h-BN) nanotubes under high pressure and high temperature conditions. The produced 1D BP/h-BN composites possess flexible diameter, length and thickness by adjusting the experimental synthesis parameters. Interestingly, it is important to notice that the stability of our BP sample has been significantly improved under the formation of heterostructures, which can actively promote their commercial applications. Our experimental work, together with first-principles calculations, presents a new scalable strategy of designing 1D tube-like BP/h-BN heterostructures that are promising candidates for flexible and high efficiency electronic platform.