Optoelectronics with single layer group-VIB transition metal dichalcogenides

Nanophotonics

article

M.A. Khan¹  Michael N. Leuenberger¹ 

[1] NanoScience Technology Center, University of Central Florida;Department of Physics, University of Central Florida;Department of Applied Physics, Federal Urdu University of Arts, Science and Technology

关键词: 2D materials;    transition metal dichalcogenides;    defects;    optoelectronics;   

DOI  :  10.1515/nanoph-2018-0041

学科分类：社会科学、人文和艺术（综合）

来源: De Gruyter

【 摘 要 】

The discovery of two-dimensional (2D) materials has opened up new frontiers and challenges for exploring fundamental research. Recently, single-layer (SL) transition metal dichalcogenides (TMDCs) have emerged as candidate materials for electronic and optoelectronic applications. In contrast to graphene, SL TMDCs have sizable band gaps that change from indirect to direct in SLs, which is useful in making thinner and more efficient electronic devices, such as transistors, photodetectors, and electroluminescent devices. In addition, SL TMDCs show strong spin-orbit coupling effects at the valence band edges, giving rise to the observation of valley-selective optical excitations. Here, we review the basic electronic and optical properties of pure and defected group-VIB SL TMDCs, with emphasis on the strong excitonic effects and their prospect for future optoelectronic devices.

【 授权许可】

CC BY