Lightweight and High-Performance Microwave Absorber Based on 2D WS 2 –RGO Heterostructures

Deqing Zhang, Tingting Liu, Junye Cheng, Qi Cao, Guangping Zheng, Shuang Liang, Hao Wang, Mao Sheng Cao

Research output: Journal article publicationJournal articleAcademic researchpeer-review

66 Citations (Scopus)

Abstract

Two-dimensional (2D) nanomaterials are categorized as a new class of microwave absorption (MA) materials owing to their high specific surface area and peculiar electronic properties. In this study, 2D WS 2 –reduced graphene oxide (WS 2 –rGO) heterostructure nanosheets were synthesized via a facile hydrothermal process; moreover, their dielectric and MA properties were reported for the first time. Remarkably, the maximum reflection loss (RL) of the sample–wax composites containing 40 wt% WS 2 –rGO was − 41.5 dB at a thickness of 2.7 mm; furthermore, the bandwidth where RL < − 10 dB can reach up to 13.62 GHz (4.38–18 GHz). Synergistic mechanisms derived from the interfacial dielectric coupling and multiple-interface scattering after hybridization of WS 2 with rGO were discussed to explain the drastically enhanced microwave absorption performance. The results indicate these lightweight WS 2 –rGO nanosheets to be potential materials for practical electromagnetic wave-absorbing applications.[Figure not available: see fulltext.]

Original languageEnglish
Article number38
JournalNano-Micro Letters
Volume11
Issue number1
DOIs
Publication statusPublished - 1 May 2019

Keywords

  • 2D WS nanosheets
  • Heterostructure
  • Microwave absorption
  • Reduced graphene oxide

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering

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