Transparent, Conducting Self‐Assembled CuS Nanostructures at and beyond Liquid‐Liquid Interface and their Electrocatalytic Properties

The liquid‐liquid interface (LLI) technique has been used to form thin films of various materials parallel to the interface. In this report, by taking CuS as an example, we show that CuS not only adopts thin film structures at the liquid‐liquid interface parallel to the interface but can also utiliz...

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Bibliographic Details
Published in:Israel journal of chemistry 2022-03, Vol.62 (3-4), p.n/a
Main Authors: Tomar, Yeshvi, Swaroop Pathak, Sushil, Jain, Siddarth, Panchakarla, Leela S
Format: Article
Language:English
Subjects:
Copper sulfides
electrochemical sensing
liquid-liquid interface
Nanoparticles
thin film
Thin films
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Summary:The liquid‐liquid interface (LLI) technique has been used to form thin films of various materials parallel to the interface. In this report, by taking CuS as an example, we show that CuS not only adopts thin film structures at the liquid‐liquid interface parallel to the interface but can also utilize beyond the interface to form self‐supported vertically aligned CuS thin films by controlling the precursor concentration. We also report the formation of a self‐assembled monolayer of CuS nanoparticles in the dichlorobenzene‐water interface at a lower concentration of copper. Thin films generated at LLI show p‐type conductivity with a sheet resistance of ∼350 Ω/□ and transparency up to 72 % at 550 nm. CuS also show electrocatalytic activity towards glucose sensing with a sensitivity of 3958 μA mM−1 cm−2, which is among the best in copper‐based materials.
ISSN:0021-2148
1869-5868
DOI:10.1002/ijch.202100080