Flexible Foil of Hybrid TaS 2 /Organic Superlattice: Fabrication and Electrical Properties.

Authors :: Zong PA
Yoo D
Zhang P
Wang Y
Huang Y
Yin S
Liang J
Wang Y
Koumoto K
Wan C
Source :: Small (Weinheim an der Bergstrasse, Germany) [Small] 2020 Apr; Vol. 16 (15), pp. e1901901. Date of Electronic Publication: 2019 Jul 24.
Publication Year :: 2020
Abstract: TaS <subscript>2</subscript> nanolayers with reduced dimensionality show interesting physics, such as a gate-tunable phase transition and enhanced superconductivity, among others. Here, a solution-based strategy to fabricate a large-area foil of hybrid TaS <subscript>2</subscript> /organic superlattice, where [TaS <subscript>2</subscript> ] monolayers and organic molecules alternatively stack in atomic scale, is proposed. The [TaS <subscript>2</subscript> ] layers are spatially isolated with remarkably weakened interlayer bonding, resulting in lattice vibration close to that of TaS <subscript>2</subscript> monolayers. The foil also shows excellent mechanical flexibility together with a large electrical conductivity of 1.2 × 10 <superscript>3</superscript> S cm <superscript>-1</superscript> and an electromagnetic interference of 31 dB, among the highest values for solution-processed thin films of graphene and inorganic graphene analogs. The solution-based strategy reported herein can add a new dimension to manipulate the structure and properties of 2D materials and provide new opportunities for flexible nanoelectronic devices.<br /> (© 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.)

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