Extrinsic morphology of graphene
Extrinsic morphology of graphene
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DOI：
10.1088/0965-0393/19/5/054005
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发表时间：
2011-07
影响因子：
1.8
通讯作者：
Teng Li
中科院分区：
文献类型：
--
作者：
Teng Li
石墨烯本质上是非平坦的并且随机地起皱。由于原子级薄石墨烯的波纹物理学与其电子学性质密切相关，因此石墨烯的随机波纹形态对其在纳米电子器件中的应用构成了重大挑战，其中精确（数字）控制是关键。近年来的研究表明，衬底支撑石墨烯的形貌受到石墨烯-衬底相互作用的调控，不同于自支撑石墨烯的随机本征形貌。石墨烯的非本征形态的调控为精细调节石墨烯的性质提供了新的途径。为了指导进一步的研究探索这些肥沃的机会，本文综述了在广泛的外部调控下的石墨烯的外在形态的建模和实验研究的最新进展，包括二维和一维衬底表面特征以及一维和零维纳米尺度支架（例如纳米线和纳米颗粒）。
Graphene is intrinsically non-flat and corrugates randomly. Since the corrugating physics of atomically thin graphene is strongly tied to its electronics properties, randomly corrugating morphology of graphene poses a significant challenge to its application in nanoelectronic devices for which precise (digital) control is the key. Recent studies revealed that the morphology of substrate-supported graphene is regulated by the graphene–substrate interaction, thus is distinct from the random intrinsic morphology of freestanding graphene. The regulated extrinsic morphology of graphene sheds light on new pathways to fine tune the properties of graphene. To guide further research to explore these fertile opportunities, this paper reviews recent progress on modeling and experimental studies of the extrinsic morphology of graphene under a wide range of external regulation, including two-dimensional and one-dimensional substrate surface features and one-dimensional and zero-dimensional nanoscale scaffolds (e.g. nanowires and nanoparticles).