论文标题
超敏感的基于平价对称的石墨烯FET（PTS-GFET）传感器
Ultra-sensitive Parity-Time Symmetry based Graphene FET (PTS-GFET) Sensors
论文作者
论文摘要
研究了一种新型的超敏感时间对称性对称性的石墨烯FET（PTS-GFET）传感器以进行气体浓度检测。 PTS-GFET传感器有效地整合了PT对称性围绕其特殊点（EP）和GFET电导的可调性的灵敏度。通过对GFET上的栅极电压调谐，可以将GFET电导随气体浓度的变化带回PTS-GFET的EP。因此，施加的栅极电压表示气体浓度。根据实验数据得出并估算了可检测的气体浓度，这表明PTS-GFET可以检测到低于50 ppb的气体浓度。
A novel ultra-sensitive Parity-Time symmetry based Graphene FET (PTS-GFET) sensor is studied for gas concentration detection. The PTS-GFET sensor effectively integrates the sensitivity of the PT symmetry around its Exceptional Point (EP) and the tunability of the GFET conductance. The change of GFET conductance with the gas concentration can be brought back to the EP of the PTS-GFET by tuning the gate voltage on the GFET. Thus, the applied gate voltage indicates the gas concentration. The minimum detectable gas concentration has been derived and estimated based on the experimental data, which shows that PTS-GFET can detect gas concentration below 50 ppb.
