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Programmable patterned MoS2 film by direct laser writing for health-related signals monitoring

ABSTRACT: Summary The two-dimensional (2D) transition metal dichalcogenides (TMDs) are promising flexible electronic materials for strategic flexible information devices. Large-area and high-quality patterned materials were usually required by flexible electronics due to the limitation from the process of manufacturing and integration. However, the synthesis of large-area patterned 2D TMDs with high quality is difficult. Here, an efficient and powerful pulsed laser has been developed to synthesize wafer-scale MoS2. The flexible strain sensor was fabricated using MoS2 and showed high performance of low detection limit (0.09%), high gauge factor (1,118), and high stability (1,000 cycles). Besides, we demonstrated its applications in real-time monitoring of health-related physiological signals such as radial artery pressure, respiratory rate, and vocal cord vibration. Our findings suggest that the laser-assisted method is effective and capable of synthesizing wafer-scale 2D TMDs, which opens new opportunities for the next flexible electronic devices and wearable health monitoring. Graphical abstract Highlights • Wafer-scale patterned MoS2 film has been synthesized by pulsed laser• The MoS2 film strain sensor shows low limit detection, high GF, and stability• The healthy-related singles have been monitored by the MoS2 film strain sensor Physics; Sensor system; Nanomaterials

SUBMITTER: Xu M

PROVIDER: S-EPMC8564106 | biostudies-literature |

REPOSITORIES: biostudies-literature

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