A split gated silicon nanotube field-effect transistor (FET) biosensor has been proposed for the label free detection of the biomolecules for the first time in literature. The sensitivity of the sensing device has been analysed considering the on current ( I _ON ) and the threshold voltage ( V _th ) variation. Sub-threshold regime has been considered here to detect the charged/neutral biomolecules. Extensive simulations have been done using the SILVACO ATLAS. Sensitivity analysis has been carried out by considering half-filled and full-filled nanogaps with the neutral or charged biomolecules inside the cavity. Significant sensitivity and excellent reduction in short-channel effects has been observed in proposed biosensor.

中文翻译：

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用于生物传感的分栅硅纳米管FET

在文献中首次提出了分裂栅式硅纳米管场效应晶体管（FET）生物传感器用于生物分子的无标记检测。考虑到导通电流（ 一世 _ON ）和阈值电压（ V _th ）变化。在这里已经考虑了亚阈值机制来检测带电/中性生物分子。使用SILVACO ATLAS进行了广泛的仿真。通过考虑半填充和完全填充的纳米间隙以及腔体内具有中性或带电的生物分子，进行了敏感性分析。在提议的生物传感器中已经观察到显着的灵敏度和短通道效应的极好的降低。