Nimbalkar Amol, Kim Hyunmin
Division of Biotechnology, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, 42988, Republic of Korea.
Nanomicro Lett. 2020 Jun 13;12(1):126. doi: 10.1007/s40820-020-00464-8.
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.
与体材料相比，二维（2D）材料展现出增强的物理、化学、电子和光学性质。由于石墨烯在不同类型的二维材料中具有卓越的物理和电子特性，因此备受关注。双层石墨烯是由两层单层石墨烯堆叠而成。当这些层以小角度扭曲时，会形成扭曲双层石墨烯（tBLG）超晶格。tBLG中无序和层间相互作用的存在增强了包括光学和电学性质在内的多种特性。到目前为止，对扭曲双层石墨烯的研究既令人兴奋又具有挑战性，尤其是在报道了处于魔角的tBLG具有超导性之后。本文综述了扭曲双层石墨烯制备技术及其与扭曲角度相关性质的当前进展。
