Flattening is flattering: The revolutionizing 2D electronic systems

• 作者: Baojuan Dong Teng Yang Zheng Han
• 来源期刊: 中国物理B（英文版）
• 年，卷（期）: 2020,（9）
• 所属期刊栏目: INVITED REVIEW
• 页码范围: 155-169
• 页数: 15页
• 语种: 英文
• DOI: 10.1088/1674-1056/aba605

摘要

Two-dimensional (2D) crystals are known to have no bulk but only surfaces and edges,thus leading to unprecedented properties thanks to the quantum confinements.For half a century,the compression of z-dimension has been attempted through ultra-thin films by such as molecular beam epitaxy.However,the revisiting of thin films becomes popular again,in another fashion of the isolation of freestanding 2D layers out of van der Waals (vdW) bulk compounds.To date,nearly two decades after the nativity of the great graphene venture,researchers are still fascinated about flattening,into the atomic limit,all kinds of crystals,whether or not they are vdW.In this introductive review,we will summarize some recent experimental progresses on 2D electronic systems,and briefly discuss their revolutionizing capabilities for the implementation of future nanostructures and nanoelectronics.