Single-layer Ga2O3/graphene heterogeneous structure with optical switching effect
Single-layer Ga2O3/graphene heterogeneous structure with optical switching effect
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DOI：
10.1016/j.cartre.2022.100153
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发表时间：
2021-10
期刊：
影响因子：
--
通讯作者：
Lijie Li
中科院分区：
文献类型：
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作者：
Lijie Li
单层Ga 2 O3（SLGO）和石墨烯由于其各自的电子和机械性质（诸如宽带隙和高导电性）而具有吸引力。利用货车德瓦尔斯力将它们结合在一起形成异质结构是一种新的值得研究的方法。在这项工作中，密度泛函理论（DFT）研究SLGO/石墨烯已通过改变层间距离进行。采用密度泛函理论对双层异质结构进行了计算，发现了一些有趣的现象，如SLGO和石墨烯导带的能带开放和面内光吸收的开关效应。
Both single layer Ga2O3(SLGO) and graphene are attractive due to their respective electronic and mechanical properties such as wide bandgap and high electrical conductivity. Bringing them together by using van der Waals force to form a heterogeneous structure is new and worth to investigate. In this work, density functional theory (DFT) study of SLGO/graphene has been conducted through varying the interlayer distance. Standard procedures of calculating double-layer heterostructures using DFT has been followed, and several interesting phenomena have been unveiled, for example, band opening in conduction bands of the SLGO and graphene and switching effect of the in-plane optical absorption.