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Updated: Jun 17, 2026

Ohmic Contact Fabrication Using a Focused-ion Beam Technique and Electrical Characterization for Layer Semiconductor Nanostructures

Ohmic Contact Fabrication Using a Focused-ion Beam Technique and Electrical Characterization for Layer Semiconductor Nanostructures

Published on: December 5, 2015

PdSe₂:五角形二维层,具有高空气稳定性

Akinola D Oyedele^1,2, Shize Yang³, Liangbo Liang²

¹Bredesen Center for Interdisciplinary and Graduate Education, University of Tennessee , Knoxville, Tennessee 37996, United States.

Journal of the American Chemical Society

|September 6, 2017

概括

此摘要是机器生成的。

五角形二维材料的少层二化物 (PdSe2) 具有可调节的电子特性和空气稳定性. 它的异构性和宽带间隙变化使其成为下一代二维电子产品的前景.

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科学领域:

材料科学
凝聚物质物理学
纳米技术

背景情况:

具有高晶格对称性的二维 (2D) 材料通常具有同位素特性.
低对称的二维材料,如,具有异构特性.
贵族过渡金属二甲基化物为新的电子应用提供了潜力.

研究的目的:

研究少数层二 (PdSe2) 的原子结构,电子特性和振动模式.
探索PdSe2作为电子设备的稳定性,异构的二维材料的潜力.

主要方法:

从散装晶体中剥离一些层次的PdSe2.
微吸收光学光谱和第一原则计算.
极化拉曼光谱和场效应晶体管的制造.

主要成果:

PdSe2具有五边形的二维层结构,并且在空气中稳定.
观察到宽带间隙变化,范围从0 eV (批量) 到1. 3 eV (单层).
在具有高电子流动性的PdSe2场效应晶体管中证明了可调节的双极电荷载体导电性 (∼158 cm2 V-1 s-1).

结论:

少数层的PdSe2是一种空气稳定,异性质的材料,具有显著的带隙可调性.
通过厚度依赖的拉曼光谱证实了强烈的层间相互作用.
展示的电子特性突显了PdSe2在先进的二维电子应用中的潜力.