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Opportunities and Challenges in Twisted Bilayer Graphene: A Review

Title
Opportunities and Challenges in Twisted Bilayer Graphene: A Review
Authors
Nimbalkar, AmolKim, Hyunmin
DGIST Authors
Nimbalkar, Amol; Kim, Hyunmin
Issue Date
2020-06
Citation
Nano-Micro Letters, 12(1), 126
Type
Article
Article Type
Review
Author Keywords
GrapheneTwisted bilayer grapheneMagic angleSuperconductivityvan Hove singularities
Keywords
FEW-LAYER GRAPHENELARGE-AREARAMAN-SPECTROSCOPYOPTICAL CONDUCTIVITYELECTRONIC-STRUCTUREDEPENDENT TRANSPORTDIRAC FERMIONSDIRECT GROWTHHIGH-QUALITYMOIRE BANDS
ISSN
2311-6706
Abstract
Two-dimensional (2D) materials exhibit enhanced physical, chemical, electronic, and optical properties when compared to those of bulk materials. Graphene demands significant attention due to its superior physical and electronic characteristics among different types of 2D materials. The bilayer graphene is fabricated by the stacking of the two monolayers of graphene. The twisted bilayer graphene (tBLG) superlattice is formed when these layers are twisted at a small angle. The presence of disorders and interlayer interactions in tBLG enhances several characteristics, including the optical and electrical properties. The studies on twisted bilayer graphene have been exciting and challenging thus far, especially after superconductivity was reported in tBLG at the magic angle. This article reviews the current progress in the fabrication techniques of twisted bilayer graphene and its twisting angle-dependent properties. © 2020, The Author(s).
URI
http://hdl.handle.net/20.500.11750/12105
DOI
10.1007/s40820-020-00464-8
Publisher
Springer
Related Researcher
Files:
Collection:
Division of Biotechnology1. Journal Articles


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