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ACS Nano. 2017 Dec 26;11(12):11803-11830. doi: 10.1021/acsnano.7b07436. Epub 2017 Dec 13.

van der Waals Layered Materials: Opportunities and Challenges.

Author information

1
Center for Integrated Nanostructure Physics (CINAP), Institute for Basic Science (IBS) , Suwon 16419, Republic of Korea.

Abstract

Since graphene became available by a scotch tape technique, a vast class of two-dimensional (2D) van der Waals (vdW) layered materials has been researched intensively. What is more intriguing is that the well-known physics and chemistry of three-dimensional (3D) bulk materials are often irrelevant, revealing exotic phenomena in 2D vdW materials. By further constructing heterostructures of these materials in the planar and vertical directions, which can be easily achieved via simple exfoliation techniques, numerous quantum mechanical devices have been demonstrated for fundamental research and technological applications. It is, therefore, necessary to review the special features in 2D vdW materials and to discuss the remaining issues and challenges. Here, we review the vdW materials library, technology relevance, and specialties of vdW materials covering the vdW interaction, strong Coulomb interaction, layer dependence, dielectric screening engineering, work function modulation, phase engineering, heterostructures, stability, growth issues, and the remaining challenges.

KEYWORDS:

Coulomb interaction; contact resistance; dielectric screening; heterostructures; multicarrier generation; phase engineering; proximity effects; two-dimensional materials; van der Waals interaction

PMID:
29219304
DOI:
10.1021/acsnano.7b07436

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