Symmetry-dependent electronic structure transition in graphether nanoribbons
Source abstract
Abstract
Graphether, a two-dimensional oxocarbon monolayer, has attracted wide attention due to its excellent mechanical, thermal, and electrical performance. Armchair-edged graphether nanoribbons (AGENRs) are investigated through first-principles calculations. It is found that symmetry plays a key role in band structures, which could trigger an indirect–direct transition of the bandgap, following the odd–even parity of the nanoribbon. Furthermore, the asymmetrical electronic structure caused by edge hydrogen passivation would induce semiconducting–metallic transition. Our findings imply that the electronic structure properties of AGENRs could be modulated by symmetry, which may throw light on the band engineering of related devices and the design of heterostructures.
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Research context
OpenAlex topics: Graphene research and applications · 2D Materials and Applications · Molecular Junctions and Nanostructures
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
College of Science, Jinling Institute of Technology 1 , Nanjing 211169, China
College of Electronic and Optical Engineering, Nanjing University of Posts and Telecommunications 2 , Nanjing 210046, China
Key Laboratory of Radio Frequency and Micro-Nano Electronics of Jiangsu Province 3 , Nanjing 210023, China
New Energy Technology Engineering Laboratory of Jiangsu Province 4 , Nanjing 210046, China
College of Natural Science, Nanjing University of Posts and Telecommunications 5 , Nanjing 210046, China
Funding
The National Natural Science Foundation of China · Funding of Jiangsu Innovation Program for Graduate Education · The Foundation of New Energy Technology Engineering Laboratory of Jiangsu Province · The Natural Science Foundation of Jiangsu Province
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