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Nanomaterials 2016, 6(11), 193; doi:10.3390/nano6110193

Two-Dimensional Semiconductor Optoelectronics Based on van der Waals Heterostructures

1
KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul 02841, Korea
2
Department of Materials Science and Engineering, Yonsei University, Seoul 03722, Korea
*
Authors to whom correspondence should be addressed.
Academic Editor: Thomas Nann
Received: 7 September 2016 / Revised: 17 October 2016 / Accepted: 18 October 2016 / Published: 27 October 2016
(This article belongs to the Special Issue 2D Nanomaterials: Graphene and Beyond Graphene)
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Abstract

Two-dimensional (2D) semiconductors such as transition metal dichalcogenides (TMDCs) and black phosphorous have drawn tremendous attention as an emerging optical material due to their unique and remarkable optical properties. In addition, the ability to create the atomically-controlled van der Waals (vdW) heterostructures enables realizing novel optoelectronic devices that are distinct from conventional bulk counterparts. In this short review, we first present the atomic and electronic structures of 2D semiconducting TMDCs and their exceptional optical properties, and further discuss the fabrication and distinctive features of vdW heterostructures assembled from different kinds of 2D materials with various physical properties. We then focus on reviewing the recent progress on the fabrication of 2D semiconductor optoelectronic devices based on vdW heterostructures including photodetectors, solar cells, and light-emitting devices. Finally, we highlight the perspectives and challenges of optoelectronics based on 2D semiconductor heterostructures. View Full-Text
Keywords: 2D semiconductors; transition metal dichalcogenides; van der Waals heterostructures; optoelectronics; photodetectors; solar cells; light-emitting diodes 2D semiconductors; transition metal dichalcogenides; van der Waals heterostructures; optoelectronics; photodetectors; solar cells; light-emitting diodes
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Lee, J.Y.; Shin, J.-H.; Lee, G.-H.; Lee, C.-H. Two-Dimensional Semiconductor Optoelectronics Based on van der Waals Heterostructures. Nanomaterials 2016, 6, 193.

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