▎ 摘　　要

The novel 2D materials (germanene/graphene heterostructure) based pressure sensor has been proposed at nanoscale via theoretical analysis by means of computing the electrical parameters such as energy band gap and electrical conductivity of germanene under the effect of applied tensile stress. The calculation of electrical parameters have been executed utilizing electron-phonon interactions. Germanene is considered on to the substrate of graphene considering compatibility between their mechanical properties. It has been observed that the bandgap exhibits negative magnitudes that leads conducting nature of germanene/graphene composite. The sensitivity of the proposed sensor is found (2.63-9) x 10(-6) kPa(-1) for the stress range of 100 kPa to 200 kPa. Moreover, it has also been observed that the proposed sensor has the optimum stress regime up to 9 GPa. The results of the present work pave new directions to design the nanoscale pressure sensor.