论文标题
基于二硫化物（RES2）现场效应晶体管的光辅助和栅极可调氧气传感器
Light-Assisted and Gate-Tunable Oxygen Gas Sensor based on Rhenium Disulfide (ReS2) Field-Effect Transistors
论文作者
论文摘要
基于过渡金属二分法元素（TMDC）的气体传感器从涉及光辅助或栅极电压操作的新角度吸引了很多关注。然而，由于缺乏对照研究，它们在气体感应性能和机制方面的综合作用尚未被理解。这项研究系统地研究了在光照明和栅极偏置下的氧气传感器性能和机制（RES2）野外晶体管（FET）的机制。结果，在1％氧浓度下，光照射和正栅极电压的组合增强了100％以上的设备响应性，即实现了0.01％PPM-1的实际敏感性，在文献中可用的大多数报告中，这表现优于大多数报告。此外，即使在潮湿的条件下，制造的设备也表现出长期稳定性和稳定的操作，表明传感器设备在实时应用中运行的能力。这些结果有助于基于TMDC FET的多功能可调氧传感器的发展。
Gas sensors based on transition metal dichalcogenides (TMDCs) have attracted much attention from a new perspective involving light-assisted or gate-voltage operation. However, their combined roles as regards the gas sensing performance and mechanism have not yet been understood due to the lack of controlled studies. This study systematically investigates the oxygen sensor performance and mechanism of few-layer-thick rhenium disulfide (ReS2) field-effect transistors (FETs) under light illumination and gate biasing. As a result, a combination of light illumination and positive gate voltage enhanced the device responsivity over 100% at a 1% oxygen concentration, that is, the approach achieved a practical sensitivity of 0.01% ppm-1, which outperform over most of the reports available in the literature. Furthermore, the fabricated devices exhibited long-term stability and stable operation even under humid conditions, indicating the ability of the sensor device to operate in a real-time application. These results contribute to the development of versatile tunable oxygen sensors based on TMDC FETs.
