September 10, 2025SensorsOpen Access

High-Performance Hydrogen Gas Sensor Based on Pd-Doped MoS2/Si Heterojunction

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This work reveals improved sensing response and electron transfer in Pd-doped MoS2/Si heterojunctions, indicating potential for advanced gas sensors.

The Pd-doped MoS2/Si heterojunction achieved a sensing response of ~6.4 × 10^3% for hydrogen detection.
This represents a 110% improvement over pristine MoS2, highlighting enhanced catalytic activity.
Response and recovery times for the gas sensor were recorded at 24.6 and 12.2 seconds, respectively.
These findings suggest that Pd-doped MoS2/Si heterojunctions may play a key role in future gas detection technologies.

Ma et al. (2025) studied this question.

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This work reveals improved sensing response and electron transfer in Pd-doped MoS2/Si heterojunctions, indicating potential for advanced gas sensors.