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WS2/MoS2 Heterostructures through Thermal Treatment of MoS2 Layers Electrostatically Functionalized with W3S4 Molecular Clusters

Morant‐Giner, Marc; Brotons‐Alcázar, Isaac; Shmelev, Nikita Y.; Gushchin, Artem L.; Norman, Luke T.; Khlobystov, Andrei N.; Alberola, Antonio; Tatay, Sergio; Canet‐Ferrer, Josep; Forment‐Aliaga, Alicia; Coronado, Eugenio


Marc Morant‐Giner

Isaac Brotons‐Alcázar

Nikita Y. Shmelev

Artem L. Gushchin

Knowledge Exchange Fellow

Antonio Alberola

Sergio Tatay

Josep Canet‐Ferrer

Alicia Forment‐Aliaga

Eugenio Coronado


The preparation of 2D stacked layers combining flakes of different nature gives rise to countless numbers of heterostructures where new band alignments, defined at the interfaces, control the electronic properties of the system. Among the large family of 2D/2D heterostructures, the one formed by the combination of the most common semiconducting transition metal dichalcogenides, WS2/MoS2, has awakened great interest owing to its photovoltaic and photoelectrochemical properties. Solution as well as dry physical methods have been developed to optimize the synthesis of these heterostructures. Here, a suspension of negatively charged MoS2 flakes is mixed with a methanolic solution of a cationic W3S4-core cluster, giving rise to a homogeneous distribution of the clusters over the layers. In a second step, a calcination of this molecular/2D heterostructure under N2 leads to the formation of clean WS2/MoS2 heterostructures, where the photoluminescence of both counterparts is quenched, proving an efficient interlayer coupling. Thus, this chemical method combines the advantages of a solution approach (simple, scalable, and low-cost) with the good quality interfaces reached by using more complicated traditional physical methods.


Morant‐Giner, M., Brotons‐Alcázar, I., Shmelev, N. Y., Gushchin, A. L., Norman, L. T., Khlobystov, A. N., …Coronado, E. (2020). WS2/MoS2 Heterostructures through Thermal Treatment of MoS2 Layers Electrostatically Functionalized with W3S4 Molecular Clusters. Chemistry - A European Journal, 26(29), 6670-6678.

Journal Article Type Article
Acceptance Date Feb 11, 2020
Online Publication Date Mar 30, 2020
Publication Date May 20, 2020
Deposit Date Nov 28, 2022
Journal Chemistry – A European Journal
Print ISSN 0947-6539
Electronic ISSN 1521-3765
Publisher Wiley
Peer Reviewed Peer Reviewed
Volume 26
Issue 29
Pages 6670-6678
Keywords General Chemistry; Catalysis; Organic Chemistry
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