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Journal Article

Flash phase engineering of MoS2 nanofilms for enhanced photoelectrochemical performance

MPS-Authors

Tan,  Rong
Felix Löffler, Biomolekulare Systeme, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Liu,  Yuxin       
Felix Löffler, Biomolekulare Systeme, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Löffler,  Felix F.
Felix Löffler, Biomolekulare Systeme, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Citation

Tan, R., Liu, Y., Tu, Y., & Löffler, F. F. (2024). Flash phase engineering of MoS2 nanofilms for enhanced photoelectrochemical performance. RSC Advances, 14(7), 4730-4733. doi:10.1039/D3RA07759D.


Cite as: https://hdl.handle.net/21.11116/0000-000E-6667-C
Abstract
A heterophase structure combining semiconducting 2H- and metallic 1T-MoS2 exhibits significantly enhanced photoelectrochemical performance due to the electrical coupling and synergistic effect between the phases. Therefore, site-selective effective phase engineering is crucial for the fabrication of MoS2-based photoelectrochemical devices. Here, we employed a flash phase engineering (FPE) strategy to precisely fabricate a 2H-1T heterophase structure. This technique allows simple, efficient, and precise control over the micropatterning of MoS2 nanofilms while enabling site-selective phase transition from the 1T to the 2H phase. The detection of reduced glutathione (GSH) showed an approximately 5-fold increase in sensitivity when using the electrode fabricated by FPE.