Boosting the electronic and catalytic properties of 2D semiconductors with supramolecular 2D hydrogen-bonded superlattices.

Autor: Wang C; Université de Strasbourg, CNRS, ISIS, 8 allée Gaspard Monge, 67000, Strasbourg, France., Furlan de Oliveira R; Université de Strasbourg, CNRS, ISIS, 8 allée Gaspard Monge, 67000, Strasbourg, France., Jiang K; The Meso-Entropy Matter Lab, The State Key Laboratory of Metal Matrix Composites, Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing, School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, 200240, Shanghai, P. R. China., Zhao Y; Université de Strasbourg, CNRS, ISIS, 8 allée Gaspard Monge, 67000, Strasbourg, France., Turetta N; Université de Strasbourg, CNRS, ISIS, 8 allée Gaspard Monge, 67000, Strasbourg, France., Ma C; Université de Strasbourg, CNRS, ISIS, 8 allée Gaspard Monge, 67000, Strasbourg, France., Han B; Université de Strasbourg, CNRS, ISIS, 8 allée Gaspard Monge, 67000, Strasbourg, France., Zhang H; Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon Based Functional Materials & Devices, Soochow University, 215123, Suzhou, P. R. China., Tranca D; The Meso-Entropy Matter Lab, The State Key Laboratory of Metal Matrix Composites, Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing, School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, 200240, Shanghai, P. R. China., Zhuang X; The Meso-Entropy Matter Lab, The State Key Laboratory of Metal Matrix Composites, Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing, School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, 200240, Shanghai, P. R. China., Chi L; Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon Based Functional Materials & Devices, Soochow University, 215123, Suzhou, P. R. China., Ciesielski A; Université de Strasbourg, CNRS, ISIS, 8 allée Gaspard Monge, 67000, Strasbourg, France. ciesielski@unistra.fr., Samorì P; Université de Strasbourg, CNRS, ISIS, 8 allée Gaspard Monge, 67000, Strasbourg, France. samori@unistra.fr.
Jazyk: angličtina
Zdroj: Nature communications [Nat Commun] 2022 Jan 26; Vol. 13 (1), pp. 510. Date of Electronic Publication: 2022 Jan 26.
DOI: 10.1038/s41467-022-28116-y
Abstrakt: The electronic properties of two-dimensional semiconductors can be strongly modulated by interfacing them with atomically precise self-assembled molecular lattices, yielding hybrid van der Waals heterostructures (vdWHs). While proof-of-concepts exploited molecular assemblies held together by lateral unspecific van der Waals interactions, the use of 2D supramolecular networks relying on specific non-covalent forces is still unexplored. Herein, prototypical hydrogen-bonded 2D networks of cyanuric acid (CA) and melamine (M) are self-assembled onto MoS 2 and WSe 2 forming hybrid organic/inorganic vdWHs. The charge carrier density of monolayer MoS 2 exhibits an exponential increase with the decreasing area occupied by the CA·M unit cell, in a cooperatively amplified process, reaching 2.7 × 10 13  cm -2 and thereby demonstrating strong n-doping. When the 2D CA·M network is used as buffer layer, a stark enhancement in the catalytic activity of monolayer MoS 2 for hydrogen evolution reactions is observed, outperforming the platinum (Pt) catalyst via gate modulation.
(© 2022. The Author(s).)
Databáze: MEDLINE
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