Controlled Sculpture of Black Phosphorus Nanoribbons.

Controlled Sculpture of Black Phosphorus Nanoribbons.
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DOI:
10.1021/acsnano.6b02435
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发表时间:
2016-06-28
期刊:
影响因子:
17.1
通讯作者:
Drndić M
Drndić M
中科院分区:
材料科学1区
文献类型:
--
作者:
Masih Das P;Danda G;Cupo A;Parkin WM;Liang L;Kharche N;Ling X;Huang S;Dresselhaus MS;Meunier V;Drndić M

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黑磷(BP)是磷的一种各向异性的同素异形体,在快速功能电子学和光电子学领域具有广阔的应用前景。我们证明了控制结构修改的少层BP沿着任意晶向与亚纳米精度的形成几个纳米宽扶手椅和锯齿形BP纳米带。纳米带的制造,沿着与纳米孔和纳米间隙,使用机械液体剥离和原位透射电子显微镜(TEM)和扫描TEM纳米雕刻的组合。我们预测,实验实现的几个纳米宽的BP纳米带具有明确的一维量子限制,即使系统是由几层。这一过程的演示是基于BP的电子学,光电子学,热电学和其他应用的发展的关键。
Black phosphorus (BP) is a highly anisotropic allotrope of phosphorus with great promise for fast functional electronics and optoelectronics. We demonstrate the controlled structural modification of few-layer BP along arbitrary crystal directions with sub-nanometer precision for the formation of few-nanometer-wide armchair and zigzag BP nanoribbons. Nanoribbons are fabricated, along with nanopores and nanogaps, using a combination of mechanical–liquid exfoliation and in situ transmission electron microscopy (TEM) and scanning TEM nanosculpting. We predict that the few-nanometer-wide BP nanoribbons realized experimentally possess clear one-dimensional quantum confinement, even when the systems are made up of a few layers. The demonstration of this procedure is key for the development of BP-based electronics, optoelectronics, thermoelectrics, and other applications in reduced dimensions.
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