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Title: Broadband ultra-high transmission of terahertz radiation through monolayer MoS{sub 2}

In this study, the terahertz (THz) absorption and transmission of monolayer MoS{sub 2} with different carrier concentrations were investigated theoretically. The calculation shows that the THz absorption of monolayer MoS{sub 2} is very low even under high carrier concentrations and large incident angles. The sum of reflection and absorption losses of monolayer MoS{sub 2} is lower than that of graphene by one to three orders of magnitude. The transmission of monolayer MoS{sub 2} is higher than that of two-dimensional electron gases in traditional GaAs and InAs. The field-effect tube structure formed by monolayer MoS{sub 2}-insulation-layer-graphene is also studied. The THz absorption of graphene can reach saturation under low voltage by tuning the voltage between MoS{sub 2} and graphene layers in the structure. The maximum THz absorption of monolayer MoS{sub 2} is approximately 5%. Thus, monolayer MoS{sub 2} is a promising candidate for THz transparent electrodes.
Authors:
 [1] ;  [2] ;  [3] ;  [4] ; ;  [1] ;  [2]
  1. Nanoscale Science and Technology Laboratory, Institute for Advanced Study, Nanchang University, Nanchang 330031 (China)
  2. (China)
  3. Department of Physics, Nanchang University, Nanchang 330031 (China)
  4. Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031 (China)
Publication Date:
OSTI Identifier:
22493027
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 118; Journal Issue: 22; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ABSORPTION; CARRIERS; CONCENTRATION RATIO; ELECTRIC POTENTIAL; ELECTRODES; GALLIUM ARSENIDES; GRAPHENE; INCIDENCE ANGLE; INDIUM ARSENIDES; MOLYBDENUM SULFIDES; REFLECTION; THZ RANGE; TRANSMISSION; TWO-DIMENSIONAL SYSTEMS