Reconfigurable Silicon Nanowire-Based Schottky Barrier Transistor for Hydrocarbon Gas Detection: A Comprehensive Study

This paper presents a comprehensive study of a Re-configurable Silicon Nanowire-based Schottky Barrier Transistor (RSiNw-SBT) for Hydrocarbon Gas Detection. The performance of an RSiNw-SBT gas sensor has been investigated in the presence of hexane, methanol, isopropanol, and dichloromethane gases. The control gate electrode (conducting polymer) of the sensor functioned as an active site for gas detection, where gas molecules interacted to modulate the device's electrical properties. By conducting comprehensive simulations, including analyses of energy band diagrams (EBDs), surface potentials, electric fields, transfer characteristics, transconductance, threshold voltages, and subthreshold slope, we investigated the behavior of the sensor. The sensitivity is evaluated for both N/P-MODE configurations. It is determined that the I
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sensitivity for the N/P-MODE configurations are 77.82 % and 77.47 %, respectively. This illus-trates the exceptional performance of the proposed sensor in detecting changes in gas. The increased sensitivity has substantial potential for enhancing the accuracy and precision of gas sensing applications, which has broad implications for environmental monitoring, industrial safety, and healthcare.