Ultrasensitive Room-Temperature NO2 Gas Sensor Based on In2O3-NbS2 Heterojunction
P K Shihabudeen, Alex Sam, Shih-Wen Chiu, Ta-Jen Yen, Kea-Tiong Tang
TL;DR
This paper reports a highly sensitive, room-temperature NO2 gas sensor utilizing a heterostructure of In2O3 and NbS2, leveraging NbS2's high surface activity for improved sensing performance.
Contribution
The study introduces a novel In2O3-NbS2 heterojunction sensor that achieves enhanced NO2 detection at room temperature, combining materials with complementary electronic properties.
Findings
Achieved high sensitivity to NO2 at room temperature
Demonstrated improved response time and detection limit
Validated the heterostructure's effectiveness for gas sensing
Abstract
Niobium disulfide (NbS2), a two-dimensional transition metal dichalcogenide with semi metallic conductivity and high surface activity, offers promising properties for electronic and sensing applications. In this study, we report a high-performance NO2 gas sensor based on a heterostructure comprising a spin-coated In2O3 film on a semi-metallic NbS2 film.
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Taxonomy
TopicsGas Sensing Nanomaterials and Sensors · Advanced Chemical Sensor Technologies · Analytical Chemistry and Sensors